This Simon G. ring is available in either 18k gold or platinum. Pictured here with two matching bands, the semi-mount is also available with a single band or by itself. Also available in two-tone rose/white gold with pink diamonds, or in all white. Total diamond weight in the ring is 0.71 carats. We are a certified Antwerp Diamond Importer and would be happy to provide you with options for the center stone. In most cases, Simon G. rings must be made to order. Please allow 4-6 weeks.