Real in-store prices from 600+ Costco locations. Download on the App Store to track prices, scan shelf tags, and get alerts.
1.01 CT Cushion Cut Platinum Solitaire Ring - IF Clarity, E Color Diamond
In-store pricing snapshot
Lowest verified warehouse price ยท 3 Costco warehouses reporting.
* Prices shown are for Costco members only.
This platinum solitaire engagement ring features a 1.01-carat cushion cut diamond with Internally Flawless (IF) clarity and E color grade โ among the highest quality grades available for a natural diamond. E color falls in the colorless range, meaning the stone is virtually free of any detectable color to the naked eye, and IF clarity indicates no internal flaws are visible even under 10x magnification.
The ring is crafted in platinum, a naturally white, dense, and durable precious metal that enhances the brilliance of the diamond and is hypoallergenic. The cushion cut style features rounded corners and larger facets that emphasize the stone's depth and clarity. The classic four-prong or shared-prong solitaire setting keeps the focus entirely on the center stone.
All Costco diamonds come with a GIA (Gemological Institute of America) grading report confirming the diamond's specifications. This ring represents an exceptional combination of cut, clarity, and color, making it suitable as an engagement ring or significant gift.