A Lovely Vintage Sapphire Diamond Ring in Estate Yellow Gold Setting, A Wonderful Wedding Ring Idea. This beautiful estate ring holds a deep rich genuine sapphire at its center measuring about 3 x 5m. It is joined by eight (8) genuine white diamonds. The setting is made of 10K yellow gold. Overall the ring measures about 3/8 inch long by about 3/4 inch wide from side to side. Ring Size: about 7 (could be resized by your jeweler or ask me about using mine before shipping). A lovely vintage sapphire diamond ring. Please see my other listings for more antique and vinatge jewelry.