Natural Blue Lapis Lazuli Gemstone Necklace. 150 gemstones, faceted rounded cut. The gems are 3.5-4mm in size, rich blue in color, over 30 carats. The necklace length is 18-19". The chain and clasp are 14k gold filled or sterling silver - you choose. Wear alone or jumble with other necklaces or even add a pendant. Shipping is Free!