Charms › Onyx Heart Charm Image 1 of 1 Onyx Heart Charm $10.00 Gold Plated Heart Inlaid Onyx Stone Pendant with Diamond Stone Center. Stone Size: Length: 21mm, Width: 21mm Add To Cart Added! Gold Plated Heart Inlaid Onyx Stone Pendant with Diamond Stone Center. Stone Size: Length: 21mm, Width: 21mm You Might Also Like Rhodochrosite Heart Charm $10.00 Tiger's Eye Heart Charm $10.00 Blue Quartz Heart Charm $10.00 Citrine Heart Charm $10.00 Blue Howlite Heart Charm $10.00