10KT White Gold 1.36 ctw Round & Baguette Channel Set Diamond Heart 21" Necklace. Both the necklace and pendant are 10KT white gold.

Estate Diamond-Cut 14KT Two-Tone Gold Virgin Mary Heart Necklace Pendant 1.2". This pendant is approximately 30.8mm in length (including the bail) and 23.3mm in width.

Women's 0.12 ctw Round Diamond 14KT White Gold 3 Heart Journey Necklace Pendant 

Women's Estate 0.02 Ct Lab-Created Ruby 14KT Yellow Gold Filigree Heart Pendant. This pendant is approximately 39.5mm in length (including the bail) and 23.4mm in width. This pendant is made with 14KT yellow gold and the bail is 1/20th 12KT gold filled.

Women's Classic 0.18 ctw Round & Baguette Diamond 10KT White Gold Heart Pendant