18.5ct Black Onyx - Beautiful Onyx Gemstone - Onyx Agate - 21x18mm

This beautiful cabochon is crafted from solid black onyx, a semi-precious mineral known for its unique luster and durability. Its elegant shape and glossy finish will add a sophisticated touch to any piece of jewelry.

NAME  Onyx gemstone

DIMENSIONS: 21x18mm

WEIGHT: 18.5 Carats

TREATMENT: None