This beautiful ring contains a center oval black onyx that contains a white gold plaque in a diamond shape that contains an old mine cut diamond. The ring is a 10.5 and can be sized by us or your jeweler. Be sure to check our storefront for hundreds of pieces of Fine, costume jewelry, sterling silver, and vintage clothing! Any questions please call, email or hit contact. Thanks! Antique Onyx Ring, Vintage Black Ring, Vintage Onyx Ring, Onyx Rings, Purple Stone Rings, Graduation Rings, Onyx Engagement Ring, Old Mine Cut Diamond, Black Jewel