David Yurman black onyx and sterling silver 11MM infinity ring size 7Brand: David Yurman Style: 11MM infinity ring Color: Silver, black Materials: Black onyx, sterling silver Size: 7 Condition: 8 10. This classic ring from David Yurman is in very good condition. It does have signs of wear on the band via scratching, but there is no discoloration on the sterling silver. The stone is in great condition. It will come with original box, purchase receipt, and authenticity card from the store where it was purchased. Free US