Real in-store prices from 600+ Costco locations. Download on the App Store to track prices, scan shelf tags, and get alerts.
1.56 CTW Princess Cut Platinum Diamond Two-Bag Ring, 1.01ct Center, IF, H
In-store pricing snapshot
Last known warehouse price ยท Feb 5, 2026. Currently out of stock.
* Prices shown are for Costco members only.
This elegant platinum diamond ring features a 1.01-carat princess cut center diamond of Internally Flawless (IF) clarity and H color, for a total carat weight of 1.56 CTW. The "two-bag" (2-bag) configuration refers to a classic solitaire-style setting with side accent diamonds flanking the center stone, all set in solid platinum for lasting durability and a bright white metal appearance.
The IF clarity grade is among the highest available, indicating no internal inclusions are visible even under 10x magnification. The H color grade falls in the near-colorless range, delivering a bright, white appearance that pairs beautifully with the platinum setting. Princess cut diamonds are square-shaped with brilliant faceting that maximizes sparkle and light return.
Platinum is a premium precious metal prized for its density, durability, and naturally white luster that will not fade or require replating over time. This ring is ideal as an engagement or special occasion ring.