C. 2000. From our Estate collection, this enchanting necklace dangles a velvety 1.25 carat heart-shaped sapphire at the center of an airy an… C. 2000. From our Estate collection, this enchanting necklace dangles a velvety 1.25 carat heart-shaped sapphire at the center of an airy and intricately styled pendant. Above, a .15 carat pear-shaped diamond twinkles, while an additional 1.00 ct. t.w. round brilliant-cut diamonds are scattered throughout, trailing up the glittering cable chain. Crafted in 18kt white gold. Lobster clasp, diamond and sapphire heart necklace. Exclusive, one-of-a-kind Estate Jewelry.