Add romance to all your outfits with this sweet and brilliant heart necklace from Tiffany Co. The thin necklace chain is crafted in everlasting platinum. It holds a heart shaped pendant fully covered with meticulously chosen diamonds.This Tiffany Co. Platinum 1.10 ct Diamond Heart Necklace TI08 080724 is offered in estate condition. It is accompanied by a gift box. Tiffany & Co. Ladies Necklaces. SKU: TI08-080724-P. Color: Multi-Color. Metal Type: No metal type. Metal Stamp: No Stamp. Gem stone type: Diamond. Necklace style: Precious Metal. Pre-Owned Tiffany Co. Platinum 1.10 ct Diamond Heart Necklace TI08 080724.