Please note that I price my items as low as I can, so they are firm. 100% Authentic Tiffany & Co Sterling Toggle Heart Tag Necklace Rare length of 19" was a special order by Tiffany. Heart measures 1.0" x .80" (26.5mm x 20.5mm) Diameter of ring is .80" (19.5mm) Link diameter is approximately 0.40" (10mm)