1.77 CTW Round Diamond Platinum Wedding Ring, 1.50 CT Center, VS1 Clarity, I Color

A platinum wedding ring centered on a 1.50 carat round brilliant cut diamond, with accent diamonds bringing the total diamond weight to 1.77 carats. The round brilliant cut features 58 precisely angled facets engineered to maximize light return and fire, making it the most popular and optically brilliant diamond shape available.

The center stone carries VS1 (Very Slightly Included, first degree) clarity, meaning any inclusions are only detectable under 10x magnification and are completely invisible to the naked eye — placing this diamond firmly in the near-flawless range. The I color grade falls in the near-colorless category; any trace warmth is imperceptible without direct comparison to higher-color stones, and in a platinum setting the diamond reads as bright and white in everyday wear.

Platinum is the most prestigious metal for fine diamond jewelry. Denser and more durable than white gold, it holds stones with exceptional security and develops a distinguished natural patina over time without fading or color change. All diamonds sold by Costco are natural and untreated, and this ring is accompanied by a GIA (Gemological Institute of America) Diamond Grading Report certifying the specifications of the center stone.