Lot STERLING SILVER OPAL SAPPHIRE HALO RING Opal Halo Ring Etsy 925 Sterling Silver Halo Ring Set 37.95 Carat Opal Cocktail Ring 925 Sterling Silver For Sale at 1stDibs Opal Retro Vintage Style Sterling Silver Halo Ring for Women Silver. Includes: A matching box. Style: Modern Material: 925 sterling silver, Platinum plated, Opal, Zircon (accent stones) Care: Avoid wearing during exercise, as sweat will react with the jewelry to produce silver chloride and copper sulfide, which causes the jewelry to deteriorate and corrode over time. Imported Gemstone origin: Australia Product measurements: 5: Circumference 2 in 6: Circumference 2. 1 in 7: Circumference 2. 2 in 8: Circumference 2. 3 in 9: Circumference 2. 4 in 10: Circumference 2. 44 in Weight: 0. 07 oz (2. 35 g)