GOODSTONE JEWELS Natural Green Opal and Turquoise Beads Necklace. Handcrafted with love and precision, this stunning necklace features a vibrant blend of natural green opal and turquoise beads in smooth 4x5mm rondelle shapes, offering a unique, earthy elegance that complements any look. Crafted in Premium Sterling Silver, High-quality 925 sterling silver, this necklace combines timeless craftsmanship with modern design. The added 1.5-inch extension chain and secure lobster claw clasp ensure a perfect, adjustable fit for every neckline ideal for layering or wearing as a statement piece.