Round Swiss Blue Topaz Sterling Silver Slide Pendant NecklaceSterling silver round slide necklace with a Swiss Blue Topaz. The bright blue December Birthstone gemstone is set in a modern bezel slide pendant. It hangs from an adjustable sterling silver chain. It's a perfect necklace to add a little bit of color and layer it with your favorite necklaces. Topaz Specifications: Size: 6mm ~1. 0ct Shape: round faceted Color: Medium to dark bright blue; Clarity: eye clean; good brilliance; good cut; good polish