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1.06 ct Round Brilliant Platinum Solitaire Ring - IF Clarity, F Color Diamond
In-store pricing snapshot
Last known warehouse price · Feb 9, 2026. Currently out of stock.
* Prices shown are for Costco members only.
This stunning platinum solitaire ring features a 1.06 carat round brilliant cut diamond with IF (Internally Flawless) clarity and F color grade — among the highest quality grades available. An Internally Flawless clarity rating means the diamond has no internal inclusions visible under 10x magnification, placing it in the rarest tier of diamond clarity. F color falls within the colorless range (D–F), meaning the stone exhibits exceptional transparency and brilliance with no detectable color to the naked eye or trained gemologist.
The ring is crafted in platinum, one of the most durable and naturally white precious metals used in fine jewelry. Platinum's density and purity make it an ideal setting for high-value diamonds, as it holds stones securely, resists wear, and will not yellow or fade over time. The round brilliant cut is the most popular diamond shape, engineered with 57–58 facets to maximize light return and fire.
Costco diamonds typically come accompanied by an independent grading report from the Gemological Institute of America (GIA) or a comparable laboratory, certifying the stated carat weight, cut, color, and clarity grades. This level of certification provides assurance that the diamond's specifications are accurately represented.