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Diamond deal Costco

There are 3 new Diamond deals available in the Costco weekly ad from 10/06/2026.

Stores 1
Costco
Ace Hardware
Harbor Freight Tools
Albertsons
Safeway
Pavilions
JC Penney
Fareway
Jewel-Osco
Vons
Bravo Supermarkets
Winn Dixie
Fastenal
Festival Foods
Hannaford
Raley's
Rural King
Five Below
Key Food
ACME
Bashas'
Boscov's
Ocean State Job Lot
King Soopers
Times Supermarkets
Fresco y Más
Presidente
Market of Choice
Food Universe
Mills Fleet Farm
Ollie's
C Town
SuperFresh
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3 of 153 deals
Costco
Costco Lab Created Emerald and Diamond 14kt White Gold Ring offer

Lab Created Emerald and Diamond 14kt White Gold Ring

5 days
$1,399.99
Costco
Costco Round Brilliant 0.34 ctw VS2 Clarity, I Color Diamond 14kt Gold Earrings offer

Round Brilliant 0.34 ctw VS2 Clarity, I Color Diamond 14kt Gold Earrings

5 days
$699.99
Costco
Costco Round Brilliant 5.00 ctw VS2 Clarity, I Color Diamond 14kt Gold Tennis Bracelet offer

Round Brilliant 5.00 ctw VS2 Clarity, I Color Diamond 14kt Gold Tennis Bracelet

5 days
$4,999.99
$3,999.99

Related brands

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Diamond logo
Diamond
Johnnie logo
Johnnie
Kellogg's logo
Kellogg's
Big logo
Big
Sun logo
Sun

Stores with Diamond in their assortment

JC Penney

JC Penney

ACME

ACME

Rural King

Rural King

Costco

Costco

Safeway

Safeway

Jewel-Osco

Jewel-Osco

Boscov's

Boscov's

Albertsons

Albertsons

Five Below

Five Below

Ace Hardware

Ace Hardware

C Town

C Town

Times Supermarkets

Times Supermarkets

Key Food

Key Food

Ocean State Job Lot

Ocean State Job Lot

SuperFresh

SuperFresh

Winn Dixie

Winn Dixie

Pavilions

Pavilions

Ollie's

Ollie's

Vons

Vons

Bravo Supermarkets

Bravo Supermarkets

Harbor Freight Tools

Harbor Freight Tools

Fareway

Fareway

Market of Choice

Market of Choice

Raley's

Raley's

Nearest Costco branch

This Diamond deal Costco is available in the following branches based on your set location:

New York
Automatically locate
Costco logo
Costco976 3rd ave 11232-2400 New York
6.60 km
Costco logo
Costco3250 vernon blvd 11106-4927 Long Island City NY
7.85 km
Costco logo
Costco517 e 117th st 10035-4409 Harlem NY
10.95 km
All locations

Diamond price Costco🕒

OfferNameStoreRegular priceDeal pricePromotionStart dateEnd date
Costco Lab Created Emerald and Diamond 14kt White Gold Ring offerLab Created Emerald and Diamond 14kt White Gold RingCostco$1,399.9905 October 202611 October 2026
Costco Round Brilliant 0.34 ctw VS2 Clarity, I Color Diamond 14kt Gold Earrings offerRound Brilliant 0.34 ctw VS2 Clarity, I Color Diamond 14kt Gold EarringsCostco$699.9905 October 202611 October 2026
Costco Round Brilliant 5.00 ctw VS2 Clarity, I Color Diamond 14kt Gold Tennis Bracelet offerRound Brilliant 5.00 ctw VS2 Clarity, I Color Diamond 14kt Gold Tennis BraceletCostco$4,999.99$3,999.99$1,000.00 Discount05 October 202611 October 2026
Costco Lab Created Emerald and Diamond 14kt White Gold Ring offerLab Created Emerald and Diamond 14kt White Gold RingCostco$1,399.9928 September 202604 October 2026
Costco Round Brilliant 1.22 ctw VS2 Clarity, I Color Diamond Platinum Wedding Set offerRound Brilliant 1.22 ctw VS2 Clarity, I Color Diamond Platinum Wedding SetCostco$2,999.9928 September 202604 October 2026
Costco Emerald Cut 0.50 ct VS2 Clarity, I Color Diamond Bezel Men's Band offerEmerald Cut 0.50 ct VS2 Clarity, I Color Diamond Bezel Men's BandCostco$1,699.9928 September 202604 October 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9728 September 202604 October 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9721 September 202627 September 2026
Costco Lab Created Emerald and Diamond 14kt White Gold Ring offerLab Created Emerald and Diamond 14kt White Gold RingCostco$1,399.9914 September 202620 September 2026
Costco Round Brilliant 0.34 ctw VS2 Clarity, I Color Diamond 14kt Gold Earrings offerRound Brilliant 0.34 ctw VS2 Clarity, I Color Diamond 14kt Gold EarringsCostco$699.9914 September 202620 September 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9714 September 202620 September 2026
Costco Round Brilliant 0.33 ctw VS2 Clarity, I Color Diamond 14kt Gold Necklace offerRound Brilliant 0.33 ctw VS2 Clarity, I Color Diamond 14kt Gold NecklaceCostco$999.9908 September 202613 September 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9708 September 202613 September 2026
Costco Princess Cut 1.00 ct VS2 Clarity, I Color Diamond 14kt Gold Solitaire Pendant offerPrincess Cut 1.00 ct VS2 Clarity, I Color Diamond 14kt Gold Solitaire PendantCostco$2,999.9931 August 202606 September 2026
Costco Round Brilliant 5.0 ctw VS2 Clarity, I Color Diamond Platinum Eternity Band offerRound Brilliant 5.0 ctw VS2 Clarity, I Color Diamond Platinum Eternity BandCostco$8,199.9931 August 202606 September 2026
Costco Round Brilliant 0.33 ctw VS2 Clarity, I Color Diamond 14kt Gold Necklace offerRound Brilliant 0.33 ctw VS2 Clarity, I Color Diamond 14kt Gold NecklaceCostco$999.9931 August 202606 September 2026
Costco Princess cut 1.47ctw VS2 Clarity, I Color Diamond 18kt White Gold Ring offerPrincess cut 1.47ctw VS2 Clarity, I Color Diamond 18kt White Gold RingCostco$5,999.9724 August 202630 August 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9724 August 202630 August 2026
Costco Pear Shape and Round Brilliant 1.45 ctw VS2 Clarity, I Color Diamond 14kt Yellow Gold Bypass Ring offerPear Shape and Round Brilliant 1.45 ctw VS2 Clarity, I Color Diamond 14kt Yellow Gold Bypass RingCostco$1,999.9917 August 202623 August 2026
Costco Round Brilliant 2.00 ctw VS2 Clarity, I Color Diamond Push Lock Stud Earrings offerRound Brilliant 2.00 ctw VS2 Clarity, I Color Diamond Push Lock Stud EarringsCostco$7,499.9917 August 202623 August 2026
Costco Round Brilliant 0.20 ctw VS2 Clarity, I Color Diamond 14kt Yellow Gold Band offerRound Brilliant 0.20 ctw VS2 Clarity, I Color Diamond 14kt Yellow Gold BandCostco$899.9917 August 202623 August 2026
Costco Round Brilliant 10.00 ctw VS2 Clarity, I Color Diamond 18kt Yellow Gold Hoop Earrings offerRound Brilliant 10.00 ctw VS2 Clarity, I Color Diamond 18kt Yellow Gold Hoop EarringsCostco$17,999.9717 August 202623 August 2026
Costco Round Brilliant 4.00 ctw VS2 Clarity, I Color Diamond Eternity Band offerRound Brilliant 4.00 ctw VS2 Clarity, I Color Diamond Eternity BandCostco$5,499.9910 August 202616 August 2026
Costco Oval & Round Brilliant 0.25 ctw VS2 Clarity, I Color Diamond 14kt Gold Hoop Earrings offerOval & Round Brilliant 0.25 ctw VS2 Clarity, I Color Diamond 14kt Gold Hoop EarringsCostco$499.9910 August 202616 August 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9710 August 202616 August 2026
Costco Princess Cut 1.00 ct VS2 Clarity, I Color Diamond 14kt Gold Solitaire Pendant offerPrincess Cut 1.00 ct VS2 Clarity, I Color Diamond 14kt Gold Solitaire PendantCostco$3,199.9910 August 202616 August 2026
Costco Round Brilliant 2.02 ctw VS1 Clarity, H Color Diamond Baguette Platinum Ring offerRound Brilliant 2.02 ctw VS1 Clarity, H Color Diamond Baguette Platinum RingCostco$15,999.9903 August 202609 August 2026
Costco Pear Shape and Round Brilliant 1.45 ctw VS2 Clarity, I Color Diamond 14kt Yellow Gold Bypass Ring offerPear Shape and Round Brilliant 1.45 ctw VS2 Clarity, I Color Diamond 14kt Yellow Gold Bypass RingCostco$1,999.9903 August 202609 August 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9703 August 202609 August 2026
Costco Round Brilliant 2.00 ctw VS2 Clarity, I Color Diamond Push Lock Stud Earrings offerRound Brilliant 2.00 ctw VS2 Clarity, I Color Diamond Push Lock Stud EarringsCostco$7,499.9903 August 202609 August 2026
Costco Round Brilliant 4.00 ctw VS2 Clarity, I Color Diamond Eternity Band offerRound Brilliant 4.00 ctw VS2 Clarity, I Color Diamond Eternity BandCostco$5,499.9903 August 202609 August 2026
Costco Princess Cut 1.71 ctw VS2 Clarity, I Color Diamond Platinum Ring offerPrincess Cut 1.71 ctw VS2 Clarity, I Color Diamond Platinum RingCostco$4,999.9703 August 202609 August 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9727 July 202602 August 2026
Costco Princess Cut & Round Brilliant 1.25 ctw VS2 Clarity, I Color Diamond Platinum Wedding Ring Set offerPrincess Cut & Round Brilliant 1.25 ctw VS2 Clarity, I Color Diamond Platinum Wedding Ring SetCostco$3,199.9920 July 202626 July 2026
Costco Round Brilliant 6.00 ctw VS2 Clarity, I Color Diamond 14kt White Gold Tennis Bracelet offerRound Brilliant 6.00 ctw VS2 Clarity, I Color Diamond 14kt White Gold Tennis BraceletCostco$5,999.9920 July 202626 July 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9720 July 202626 July 2026
Costco Anji Mountain Woven Diamond Pouf offerAnji Mountain Woven Diamond PoufCostco$69.9920 July 202626 July 2026
Costco Round Brilliant 1.50 ctw VS2 Clarity, I Color Diamond Platinum Halo Ring offerRound Brilliant 1.50 ctw VS2 Clarity, I Color Diamond Platinum Halo RingCostco$3,199.9913 July 202619 July 2026
Costco Princess Cut & Round Brilliant 1.25 ctw VS2 Clarity, I Color Diamond Platinum Wedding Ring Set offerPrincess Cut & Round Brilliant 1.25 ctw VS2 Clarity, I Color Diamond Platinum Wedding Ring SetCostco$3,199.9907 July 202612 July 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9707 July 202612 July 2026
Costco Round Brilliant 1.00 ctw VS2 Clarity, I Color Diamond 14kt Gold Band offerRound Brilliant 1.00 ctw VS2 Clarity, I Color Diamond 14kt Gold BandCostco$1,299.9907 July 202612 July 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9729 June 202605 July 2026
Costco Round Brilliant 0.34 ctw VS2 Clarity, I Color Diamond 14kt Gold Earrings offerRound Brilliant 0.34 ctw VS2 Clarity, I Color Diamond 14kt Gold EarringsCostco$799.9929 June 202605 July 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9722 June 202628 June 2026
Costco Round Brilliant 0.20 ctw VS2 Clarity, I Color Diamond 14kt Gold Cross Earrings offerRound Brilliant 0.20 ctw VS2 Clarity, I Color Diamond 14kt Gold Cross EarringsCostco$449.9922 June 202628 June 2026
Costco Emerald Cut 4.54 ctw VVS2 Clarity, G Color Diamond Platinum Wedding Set offerEmerald Cut 4.54 ctw VVS2 Clarity, G Color Diamond Platinum Wedding SetCostco$67,499.9922 June 202628 June 2026
Costco Oval 1.65 ctw VS2 Clarity, H Color Diamond Platinum Band offerOval 1.65 ctw VS2 Clarity, H Color Diamond Platinum BandCostco$2,899.9915 June 202621 June 2026
Costco Round Brilliant 1.00 ctw VS2 Clarity, I Color Diamond 14kt Gold Stud Earrings offerRound Brilliant 1.00 ctw VS2 Clarity, I Color Diamond 14kt Gold Stud EarringsCostco$1,899.9915 June 202621 June 2026
Costco Round Brilliant 1.00 ct VS2 Clarity, I Color Diamond 14kt Gold Solitaire Pendant offerRound Brilliant 1.00 ct VS2 Clarity, I Color Diamond 14kt Gold Solitaire PendantCostco$4,299.9915 June 202621 June 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9715 June 202621 June 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9708 June 202614 June 2026
Costco Round Brilliant 1.00 ctw VS2 Clarity, I Color Diamond 14kt Gold Hoop Earrings offerRound Brilliant 1.00 ctw VS2 Clarity, I Color Diamond 14kt Gold Hoop EarringsCostco$1,099.9901 June 202607 June 2026
Costco Emerald Cut & Round Brilliant 1.17 ctw VS2 Clarity, G Color Diamond Platinum Three Stone Ring offerEmerald Cut & Round Brilliant 1.17 ctw VS2 Clarity, G Color Diamond Platinum Three Stone RingCostco$2,799.9901 June 202607 June 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9701 June 202607 June 2026
Costco Citizen Eco Drive Disney Mickey Mouse Diamond Gold Tone Stainless Steel Quartz Women's Watch, 29.5mm offerCitizen Eco Drive Disney Mickey Mouse Diamond Gold Tone Stainless Steel Quartz Women's Watch, 29.5mmCostco$299.9925 May 202631 May 2026
Costco Princess Cut & Round Brilliant 1.07 ctw VS2 Clarity, I Color Diamond 14kt White Gold Halo Ring offerPrincess Cut & Round Brilliant 1.07 ctw VS2 Clarity, I Color Diamond 14kt White Gold Halo RingCostco$2,299.9925 May 202631 May 2026
Costco Emerald Cut & Round Brilliant 1.17 ctw VS2 Clarity, G Color Diamond Platinum Three Stone Ring offerEmerald Cut & Round Brilliant 1.17 ctw VS2 Clarity, G Color Diamond Platinum Three Stone RingCostco$2,799.9925 May 202631 May 2026
Costco Round Brilliant 0.68 ctw VS2 Clarity, I Color Diamond 14kt Gold Multi Row Hoop Earrings offerRound Brilliant 0.68 ctw VS2 Clarity, I Color Diamond 14kt Gold Multi Row Hoop EarringsCostco$999.9925 May 202631 May 2026
Costco Round Brilliant 1.40 ctw VS2 Clarity, I Color Diamond Platinum Ring offerRound Brilliant 1.40 ctw VS2 Clarity, I Color Diamond Platinum RingCostco$2,999.9925 May 202631 May 2026
Costco Round Brilliant 10.00 ctw VS2 Clarity, I Color Diamond 18kt Yellow Gold Hoop Earrings offerRound Brilliant 10.00 ctw VS2 Clarity, I Color Diamond 18kt Yellow Gold Hoop EarringsCostco$17,999.9725 May 202631 May 2026
Costco Bulova Classic Stainless Steel Diamond Rectangle Blue Dial Women's Quartz Watch, 21mm offerBulova Classic Stainless Steel Diamond Rectangle Blue Dial Women's Quartz Watch, 21mmCostco$259.9925 May 202631 May 2026
Costco Round Brilliant 1.60 ctw VS2 Clarity, I Color Diamond 14kt Gold Stud Earrings offerRound Brilliant 1.60 ctw VS2 Clarity, I Color Diamond 14kt Gold Stud EarringsCostco$3,899.9925 May 202631 May 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9718 May 202624 May 2026
Costco Mirador Diamond Series 205 Gallon Storage Box offerMirador Diamond Series 205 Gallon Storage BoxCostco$399.9918 May 202624 May 2026
Costco Round Brilliant 1.04 ctw VS2 Clarity, I Color Diamond 14kt White Gold Halo Ring offerRound Brilliant 1.04 ctw VS2 Clarity, I Color Diamond 14kt White Gold Halo RingCostco$1,898.72$1,499.99$398.73 Discount18 May 202624 May 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9711 May 202617 May 2026
Costco Round Brilliant 1.80 ctw VS2 Clarity, I Color Diamond 14kt White Gold Cross Pendant offerRound Brilliant 1.80 ctw VS2 Clarity, I Color Diamond 14kt White Gold Cross PendantCostco$2,999.9711 May 202617 May 2026
Costco Round Brilliant 1.50 ctw VS2 Clarity, I Color Diamond 14kt Yellow Gold Three Stone Pendant offerRound Brilliant 1.50 ctw VS2 Clarity, I Color Diamond 14kt Yellow Gold Three Stone PendantCostco$3,999.9711 May 202617 May 2026
Costco Round Brilliant 1.00 ctw VS2 Clarity, G Color Diamond 14kt White Gold Cross Pendant offerRound Brilliant 1.00 ctw VS2 Clarity, G Color Diamond 14kt White Gold Cross PendantCostco$1,499.9904 May 202610 May 2026
Costco Cushion Cut 1.60 ctw VS2 Clarity, I Color Diamond Platinum Wedding Set offerCushion Cut 1.60 ctw VS2 Clarity, I Color Diamond Platinum Wedding SetCostco$4,499.9704 May 202610 May 2026
Costco 14kt Gold Diamond Cut Round Box Chain offer14kt Gold Diamond Cut Round Box ChainCostco$699.9904 May 202610 May 2026
Costco Round Brilliant 5.00 ctw VS2 Clarity, G Color Diamond 14kt Gold Strand Necklace offerRound Brilliant 5.00 ctw VS2 Clarity, G Color Diamond 14kt Gold Strand NecklaceCostco$5,999.9904 May 202610 May 2026
Costco Round Brilliant 0.23 ctw VS2 Clarity, I Color Diamond 14kt Gold Screwback Stud Earrings offerRound Brilliant 0.23 ctw VS2 Clarity, I Color Diamond 14kt Gold Screwback Stud EarringsCostco$289.9904 May 202610 May 2026
Costco Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond 14kt Gold Bangle Bracelet offerRound Brilliant 2.00 ctw VS2 Clarity, G Color Diamond 14kt Gold Bangle BraceletCostco$2,207.78$1,699.99$507.79 Discount04 May 202610 May 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9704 May 202610 May 2026
Costco 14kt Two-Tone Gold Diamond Cut Crucifix on an 18-20 Chain offer14kt Two-Tone Gold Diamond Cut Crucifix on an 18-20 ChainCostco$419.9904 May 202610 May 2026
Costco Round Brilliant 0.50 ctw VS2 Clarity, I Color Diamond 14kt Gold Cross Pendant offerRound Brilliant 0.50 ctw VS2 Clarity, I Color Diamond 14kt Gold Cross PendantCostco$899.9904 May 202610 May 2026
Costco Round Brilliant 12.00 ctw VS2 Clarity, G Color Diamond 14kt White Gold Strand Necklace offerRound Brilliant 12.00 ctw VS2 Clarity, G Color Diamond 14kt White Gold Strand NecklaceCostco$13,999.9904 May 202610 May 2026
Costco Round Brilliant 1.00 ctw VS2 Clarity, I Color Diamond Eternity Band offerRound Brilliant 1.00 ctw VS2 Clarity, I Color Diamond Eternity BandCostco$1,099.9927 April 202603 May 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9727 April 202603 May 2026
Costco Citizen Eco Drive Disney Mickey Mouse Diamond Gold Tone Stainless Steel Quartz Women's Watch, 29.5mm offerCitizen Eco Drive Disney Mickey Mouse Diamond Gold Tone Stainless Steel Quartz Women's Watch, 29.5mmCostco$299.9927 April 202603 May 2026
Costco Anji Mountain Woven Diamond Pouf offerAnji Mountain Woven Diamond PoufCostco$69.9920 April 202626 April 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9720 April 202626 April 2026
Costco Multi Cut 3.82 ctw VS2 Clarity, I Color Diamond 18kt White Gold Cluster Earrings offerMulti Cut 3.82 ctw VS2 Clarity, I Color Diamond 18kt White Gold Cluster EarringsCostco$5,999.9920 April 202626 April 2026
Costco Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond 14kt Gold Bangle Bracelet offerRound Brilliant 2.00 ctw VS2 Clarity, G Color Diamond 14kt Gold Bangle BraceletCostco$2,199.9920 April 202626 April 2026
Costco Round Brilliant 1.00 ctw VS2 Clarity, I Color Diamond Eternity Band offerRound Brilliant 1.00 ctw VS2 Clarity, I Color Diamond Eternity BandCostco$1,099.9920 April 202626 April 2026
Costco Round Brilliant 2.00 ctw VS2 Clarity, I Color Diamond 14kt White Gold Halo Earrings offerRound Brilliant 2.00 ctw VS2 Clarity, I Color Diamond 14kt White Gold Halo EarringsCostco$3,797.46$2,999.99$797.47 Discount13 April 202619 April 2026
Costco Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond 14kt Gold Bangle Bracelet offerRound Brilliant 2.00 ctw VS2 Clarity, G Color Diamond 14kt Gold Bangle BraceletCostco$2,199.9913 April 202619 April 2026
Costco Princess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo Ring offerPrincess Cut & Round Brilliant 2.00 ctw VS2 Clarity, G Color Diamond Platinum Halo RingCostco$6,999.9707 April 202612 April 2026
Costco Round Brilliant 0.50 ctw VS2 Clarity, I Color Diamond 14kt Gold Stud Earrings offerRound Brilliant 0.50 ctw VS2 Clarity, I Color Diamond 14kt Gold Stud EarringsCostco$729.9907 April 202612 April 2026
Costco Round Brilliant 1.28 ctw VS2 Clarity, I Color Diamond 14kt White Gold Wedding Ring offerRound Brilliant 1.28 ctw VS2 Clarity, I Color Diamond 14kt White Gold Wedding RingCostco$4,399.9907 April 202612 April 2026
Costco Round Brilliant 2.00 ctw VS2 Clarity, I Color Diamond Push Lock Stud Earrings offerRound Brilliant 2.00 ctw VS2 Clarity, I Color Diamond Push Lock Stud EarringsCostco$7,999.9907 April 202612 April 2026
Costco Round Brilliant 0.50 ctw VS2 Clarity, G Color Diamond 14kt White Gold Solitaire Pendant offerRound Brilliant 0.50 ctw VS2 Clarity, G Color Diamond 14kt White Gold Solitaire PendantCostco$1,455.68$1,149.99$305.69 Discount07 April 202612 April 2026
Costco Round Brilliant & Baguette 1.68 ctw VS2 Clarity, I Color Diamond Platinum Ring offerRound Brilliant & Baguette 1.68 ctw VS2 Clarity, I Color Diamond Platinum RingCostco$4,499.9907 April 202612 April 2026
Costco Round Brilliant 10.00 ctw VS2 Clarity, G Color Diamond 14kt Gold Eternity Strand Necklace offerRound Brilliant 10.00 ctw VS2 Clarity, G Color Diamond 14kt Gold Eternity Strand NecklaceCostco$11,999.9907 April 202612 April 2026
Costco Round Brilliant 1.28 ctw VS2 Clarity, I Color Diamond 14kt White Gold Wedding Ring offerRound Brilliant 1.28 ctw VS2 Clarity, I Color Diamond 14kt White Gold Wedding RingCostco$4,399.9930 March 202605 April 2026
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Costco Diamond deal

At Costco, you’ll find a wide selection and range of ⭐️Diamond deals⭐️. This week, Costco has 3 Diamond deals in the weekly ad. Remove your filters to view all Diamond deals, find the best prices, and save on your next purchase. Use the filters to find the deals of your favourite shop or product to make your purchases as cheap as possible, for the lowest price. You can save your search to stay updated when Diamond is on deal again in this or next week’s weekly ad. Is the product not on promotion now but still needed? Check out similar deals to find an alternative.

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Last update: Tuesday, October 6, 2026
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