SR070, 9x7mm Rainbow MoonStone, 925 Sterling Silver Ring - Size 15.5 Stone Type _________________Twilight Fire Topaz Approximate Stone Size _______ 9x7mm Approximate Stone Weight _____ 2.3 ct Jewelry Metal _______________ Solid .925 Sterling Silver Approximate Metal Weight _____ 2.2 grams Ring Size __________________ Size selectable during checkout Our Warranty _______________ A full year on workmanship Our Guarantee _____________ Totally unconditional 30 day guarantee ________________________________________________________________________ Rainbow Moonstone is sort of hard to describe. A pretty, translucent stone. It's actually not a moonstone at all, but a Labradorite Feldspar. It throws a light blue to light yellow sheen. Typically, it is never "clean", by ordinary standards -- there are all sorts of veils, inclusions and stuff (like that technical term?) that gives it it's character.