This elegant three-stone engagement ring features a total of 1.50 carats of round brilliant-cut diamonds set in platinum, with a prominent 0.80-carat center stone flanked by two matching side diamonds totaling 0.70 carats. All diamonds are graded VS2 clarity (Very Slightly Included) and I color (near-colorless), offering excellent eye-clean brilliance at a competitive price point.

The ring is crafted in platinum, a naturally white, hypoallergenic precious metal that is denser and more durable than white gold, requiring no rhodium plating to maintain its bright luster. The three-stone design is a timeless symbol of a couple's past, present, and future together, making it a popular choice for engagements and milestone anniversaries. The round brilliant cut is renowned for maximizing light return and sparkle, making it the most popular diamond shape worldwide.

Model number RG79523. As with other Costco diamond rings featuring center stones over 0.5 carats, this ring typically includes an IGI or GIA gemological certificate or statement of authenticity confirming the diamond specifications.