Dog Collar Charm Jewelry, Blue Chalcedony Gemstone Handcrafted This collar charm features a lovely, free form nugget shaped, almost translucent blue chalcedony, nestled between two freshwater, peacock pearls. A sterling silver heart dangles from above and a sterling flower completes the bottom. The center pin and lobster clasp are solid stainless steel for lasting durability and shine for your companion pet. Large Blue Chalcedony Gemstone Freshwater Peacock Pearls Solid Sterling Silver- Heart Charm, Daisy Cap. Stainless Steel Center Pin and Lobster Claw Clasp Crystal Healing: May help Ease Depression.