This stunning platinum solitaire engagement ring features a natural, untreated 1.20 carat round brilliant cut diamond set in 950 platinum. The center diamond is graded VS2 (Very Slightly Included) for clarity and G (Near Colorless) for color, with an Excellent cut grade from the Gemological Institute of America (GIA).

The ring comes in size 7 and is sizeable to any size by a professional jeweler. Every diamond offered by Costco is natural and untreated, and this ring includes a GIA Gem Trade Laboratory Diamond Grading Report certifying the diamond's characteristics based on 10x magnification. A Jewelry Grading/Gemological Report is also included to independently certify the authenticity and quality of the item.

Air shipping via UPS insured is included, with delivery in approximately 2–3 business days. Signature is required upon delivery. Returns containing diamonds of 1.00 ct or larger may require up to five business days for verification by a Graduate Gemologist before a refund is approved.