This classic platinum solitaire engagement ring features a 1.80 carat round brilliant cut diamond, graded VS2 for clarity and I for color. The VS2 clarity grade indicates the diamond has very slight inclusions that are difficult to detect even under 10x magnification, while the I color grade represents a near-colorless stone with only subtle warmth visible face-up in most lighting conditions.

The diamond is set in a six-prong platinum head mounted on a polished, comfort-fit platinum band, allowing maximum light to enter and reflect through the stone. Platinum is a naturally white, dense precious metal that will never fade or tarnish, making it an ideal choice for a ring intended for lifelong wear. The solitaire silhouette keeps the design timeless and allows the center diamond to remain the sole focus.

Costco's diamonds are certified by independent gemological laboratories and come with a certificate of authenticity. Every diamond engagement ring purchased at Costco includes a Diamond Grading Report from the Gemological Institute of America (GIA) or the American Gem Society (AGS).