There is just something about a solitaire by "Tiffany & Co." that words can't quite describe. This classic Tiffany solitaire holds a round brilliant cut diamond that has a weight of .30 carat. This beautifully cut diamond has a color grade of G-H with a clarity grade of VVS(1-2). Made of platinum, this ring is currently a size 8 that can easily be sized up or down.