- Brand Name Tiffany & Co Tiffany & Co - Model Name Open Atlas Necklace - Size (cm) Top Height: 1 cm (0.39 in) Top Width: 0.5 cm (0.20 in) Length: 42 cm (16.54 in) Width: No. Of issues: Minimum Other Sizes: - Accessories None - Material About the condition (rank)** N: S: Unused items. Items on display, and items that we judge to be similar. Condition Guide: S: Like new by the store's standards SA: Almost unused, overall clean condition A: Excellent condition AB: Minor signs of use, good condition B: Signs of wear from normal use C: Noticeable scratches, dirt, or signs of use D: Heavily damaged or in need of repair