Sapphire Necklaces

Yes, every sapphire on this page is a natural stone rather than lab-grown. Most sapphires in fine jewelry at any price are heat treated, a permanent and long-accepted practice that deepens color, so assume heat treatment unless a stone is documented otherwise. Where diamonds sit alongside the sapphires, you choose lab-grown or natural for the diamonds.

Sapphire is the birthstone for September and the traditional gift for a fifth and a forty-fifth wedding anniversary, which is why it is bought as a marker more often than as a fashion piece. Blue also reads as the least loud of the precious colored stones, so it suits someone who does not usually wear color.

The two tennis lines carry roughly ten carats each, one of them across 136 individual blue sapphires with 1.04 carats of diamonds between them. The single stone and cluster pieces are far lighter, from 0.07 carats of sapphire accent up to a 1.45 carat flower and a 0.65 carat octagon pendant.

White gold and platinum push a sapphire cooler and make the blue read sharper and more modern, which is why most sapphire engagement pieces use white metal. Yellow gold warms the stone and softens it, closer to how sapphire is set in traditional Indian jewelry. Seema's sapphire necklaces are set in 14K gold.