Platinum Round1/2 Carat Diamond Solitaire Engagement Ring in SuperJeweler's Finest Engagement Ring Quality. Our 4 star diamonds are G/H color, SI1/SI2 clarity, which are fine top white, highly brilliant and fully eye clean. Brand: Superjeweler Design: Novelty Style: Solitaire Resizable: Yes Adjustable: Yes Size/Dimensions: 5.5 Metal Stamp: 14 kt Diamond Color: G-J