Oscar Heyman & Brothers are known as the jeweler to jewelers. Their expertise is well recognized and besides their own brand they have created many pieces for the most prominent jewelry houses. Designed with a royal blue sapphire that is paired perfectly with colorless oval cut diamonds on either side. Crafted in 18k gold and platinum. Stamped OHB and numbered. Ring size 5-1/2 and can easily be resized to fit, if needed this would come complimentary with your purchase.