Ross-Simons - C. 1980 Vintage 14kt Yellow Gold Two-Heart Necklace, Diamond Accents. 16". C. 1980. Two become one in this meaningful symbol of love. Our Estate collection necklace interlocks a precious pair of 14kt yellow gold open-space hearts, each sparked with a round brilliant-cut diamond accent. Stationed on a classic cable chain. Springring clasp, 14kt yellow gold two-heart necklace. Exclusive, one-of-a-kind Estate Jewelry. Diamond birthstones are the perfect gift for April birthdays.