Tiffany & Co. Solid 18K Yellow Gold "Double X Knot" Ring - This elegant, vintage piece was made by world renowned jeweler Tiffany & Co. The ring is made of solid 18k yellow gold, and has a two row design, with two "X knots" wrapping around the top of the band. The ring measures 5.5mm wide, and is in beautiful condition. This piece has excellent investment potential, as these retired designer pieces have proven to become the best quality investment pieces, as they are incredibly difficult to find. These pieces are sought after by Hollywood Elites, and Fashion designers worldwide. This piece comes from a famous model's estate (no provenance is provided, because she wishes to remain a private seller). THIS IS A TRUE INVESTMENT QUALITY PIECE OF THE BEST KIND: (read the following article): http://www.departures.com/fashion/style/vintage-jewelry-shopping-los-angeles The ring is fully hallmarked with "Tiffany & Co" and "750" (denoting 18K gold purity). Ring size: 5.5. (WEIGHT: 3.9 grams)