Tiffany & Co. Sterling Silver (925) Mom Heart Tag w/ Key on 24.5" Bead Necklace. The heart tag pendant is approximately 25.2mm in length (including the bail) and the bead necklace is approximately 24 1/2 inches in length.
Tiffany & Co. Sterling Silver (925) 2.5mm Thin Ball / Bead Chain Necklace 18.5". This necklace is approximately 18 1/2 inches in length and 2.5mm in width.