For years, diamonds and gemstones have symbolized commitment. Wedding and engagement rings. Gifts to parents and partners.

The colour red has always been associated with passion, and in the gemstone world, there’s nothing so associated with red as the ruby. Long linked with prosperity and protection, it is known as the ...

Sophia Hirsh of Hirsh London gives expert advice on investing in colour gemstones and reveals some lesser known winners.

Take the Color Flash brooch, an exuberant cocktail of rubies, yellow, blue, and green sapphires, black spinels, amethysts, diamonds, chrysoprase, and garnets—some cut into classic shapes, others ...

The largest ruby to appear at auction is expected to realize more than US$30 million at a Sotheby’s sale of magnificent jewels on June 8 in New York. Weighing 55.22 carats, the Estrela de Fura ...