1ct Platinum Princess Diamond Solitaire Engagement Ring in SuperJeweler's Finest Engagement Quality. Our 4 Star diamonds are G/H, SI1 clarity, which are fine top white, extremely brilliant, perfectly cut, and completely eye clean. Brand: Superjeweler Design: Novelty Style: Solitaire Resizable: Yes Adjustable: Yes Size/Dimensions: 6 Metal Stamp: 900 Platinum Diamond Color: G-J