Real in-store prices from 600+ Costco locations. Download on the App Store to track prices, scan shelf tags, and get alerts.
1.94 CTW Round Diamond Platinum Halo Ring – 1.01 CT Center, VS1 Clarity, D Color
In-store pricing snapshot
Last known warehouse price · Mar 5, 2026. Currently out of stock.
* Prices shown are for Costco members only.
This stunning platinum halo engagement ring features a 1.01 carat round brilliant-cut center diamond graded VS1 for clarity and D for color — the highest colorless grade on the GIA scale — set within an elegant halo of accent diamonds for a total carat weight of 1.94 CTW. The D color rating means the stone is virtually free of any detectable color, while VS1 clarity indicates only minute inclusions invisible to the naked eye, ensuring exceptional brilliance and fire.
The ring is crafted in platinum, prized for its natural white luster, durability, and hypoallergenic properties. Platinum holds diamonds more securely than white gold and will not fade or require re-plating over time. The halo setting encircles the center stone with a border of smaller round brilliant diamonds that amplify the apparent size of the center stone and add maximum sparkle.
This ring is sold through Costco's fine jewelry collection, which sources diamonds from reputable suppliers adhering to responsible mining standards. An independent grading report (typically GIA or AGS) is typically included, certifying the center stone's specifications.