Natural Gemstone Diamond 'Boulder Bead' Necklace - Multi-Sapphire / 18k Yellow GoldBold Sparkling gemstone beads are punctuated by Anne's diamond studded hand carved boulder textured bead which naturally settles in the center front. Necklace: 17" Length Spring Ring Clasp 20 diamond 'Boulder' texture gold bead Aprox. Natural gemstones dimensions: Brown garnet: ~3. 8mm x 2. 3mm Green tourmaline: ~3. 5mm x 2. 3mm Iolite: ~3. 5mm x 2. 2mm Labradorite: ~3. 5mm x 2. 7mm Watermelon tourmaline: ~3. 6mm x 2. 3mm Spinel: ~3. 5mm 2. 6mm