This retro mood ring is a definite statement piece! The WATER PROOF ring features a solid sterling silver double 16 gage band with a 12mm x 18mm color changing cabochon with colors ranging from golden yellows to blue-greens to purples & beyond, as shown above. The color changes according to body temperature & environment. Handmade by Old Hippie Dave in Safety Harbor, Florida. Each one is hand fabricated out of 925 sterling silver & hand polished. Sterling Silver Mood Ring Large Color Changing Is Handmade By Old Hippie Dave 925 12mm X 18mm Stone Water Proof Great Christmas Gift