Art Deco Ring Raw Diamond Ring Rough Diamond Ring promise anniversary gift for women jewelry Natural Raw Diamond Sterling Silver 925 Ring. DETAILS: - Diamond Weight: 3.69 carat (3 pcs) - Stone: Blue and Grey Color Rough Diamond - Shape: Uncut Rough - Ring Size: 9 US - Base Metal: Solid Sterling Silver 925 - Band Color: Sterling Silver, Rhodium - Ring Style: Prongs.