Green Onyx Faceted Gemstone Necklace. 50 gemstones. This is a great dainty and feminine necklace - fabulous sparkle. The gems are 3.0-3.5mm in size or larger in 5mm sized stones. The necklace length is 18-19". The clasp is 14k gold filled, the chain is 14k gold plate or available is a sterling silver clasp and silver plated chain - you choose. These have the look of green emeralds. Shipping is Free!