Necklace showcases a prong set 6x4mm oval solitaire blue topaz gemstone. It includes a thin 18-inch rolo chain. Pendant and chain are made of yellow gold flash 925 sterling silver. December Birthstone Color Ice Gems Offers Beautiful Gemstone Jewelry! This striking jewelry piece is a dazzling winner, make it memorable! This Jewelry Piece is an Awesome Gift for Birthdays, Anniversaries, Wedding Party, Holiday, Graduation etc. Ice Gems packs each Item in a nice jewelry pouch which creates a lovely packaged gift!