Genuine Black Onyx Necklace by John Medeiros Jewelry Collections

We are making a splash with our all-new Genuine Black Onyx collection. This series mirrors Pérola in design with the sleek, exotic addition of black onyx. Made with Rhodium and Gold. Guaranteed for life.

Dimensions - 

• Length: 16" - 18" adjustable
• Center Motif: 8mm Onyx, 3/4"W x 1/2"H