Treat them to this beautiful birthstone necklace to show them how much they mean to you on their birthday. The gold plated sterling silver belcher chain is decorated with 7, deep blue cubic zirconia which are held in bezel settings. Each one is secured at both the top and the bottom so that the crystals are held in line with the 16 inch chain. The chain itself has a fine, 1mm curb and is secured using the bolt ring clasp.