Diamond and Ruby Ring, 18kt White GoldDiamond and Ruby Ring, 18kt White Gold
Diamond and Ruby Ring, 18kt White GoldDiamond and Ruby Ring, 18kt White Gold
Diamond and Ruby Ring, 18kt White GoldDiamond and Ruby Ring, 18kt White Gold

Ruby & 0.25ctw Diamond Ring, 18ct White Gold

Item #1498428

Shipping Included

- 18ct White Gold

- 0.25ctw Diamond

- Oval Cut Ruby

- July Birthstone

- Ring Size: N

Your estimated delivery time will be 2 business days (excluding weekends and bank holidays) from the time of order. Postcode Restrictions may apply. Find out more in the Delivery & Returns Tab below.


Costco makes purchasing quality jewellery easy by offering only the industry's highest quality diamonds at the lowest possible price. Costco's experienced buying team works with our suppliers to select timeless styles and create well–crafted and comfortable jewellery. An Independent Gemologist inspects each piece for quality craftsmanship and every diamond for cut, colour and clarity to ensure your jewellery will sparkle for generations.

  • Total Diamonds: 5
  • Diamond Cut: Round Brilliant
  • Total Diamond Weight: 0.25ctw
  • Gemstone Type: Ruby 
  • Gemstone Cut: Oval
  • Gemstone Size: 5 x 3 mm (each)
  • Diamond Colour: I
  • Diamond Clarity: VS2
  • 18ct White Gold 
  • Size N, sizeable up or down 1 size (Please Note: Costco does not offer this service)
We guarantee that all diamonds supplied by are as follows: Clarity to be VS2 or better and colour to be "I" or better as outlined on the industry grading guide. 

To view additional jewellery information click here.

To view additional information on coloured gemstones click here.

Diamond Carat0.25ctw
Diamond CutRound Brilliant
Diamond ClarityVS2
Diamond ColourI
MetalWhite Gold
Gemstone CutOval
Gemstone ColourRed
Birthstone MonthJuly
TypeDiamond Ring
Gemstone Ring
  •  Additional day(s) transit may be required for remote areas.
  •  Public and Regional holidays may affect delivery lead times.
  •  Delivery times may vary in the event of adverse weather conditions.
  •  Please note that we are unable to ship to the Channel Islands, Post Office boxes and BFPO.
  •  Further postcode delivery restrictions might apply to this item.
  •  We are committed to offering the best value to our members, with a satisfaction guarantee on both your membership and merchandise. If you have questions about your membership or products you've purchased at Costco, please contact our Customer Care team.
  •  If you wish to return an item, please view Costco's Return Policy.
  •   Costco Concierge Services | Technical Support
    Free technical support exclusive to Costco members for select electronics and consumer goods.
  •  Items purchased online can be returned at any of our UK warehouses if you are a warehouse member.
  •  Many of our small items can be returned via “My account” on the website and printing a return label. This label must be attached to the box being returned.
  •  Please securely pack the items you intend to return in a box. If you are using the original packaging, be sure to remove the delivery label.
  •  If you need to return a larger item, please contact our Member Care team via the chat function on our website or call 0800 0324 324.
  •  Find out more about our Delivery, Cancellations and Assistance Policy
Compare up to 4 Products

You can only compare up to 4 products at once. Remove one or more products before adding another to compare.