Ruby is the birthstone for July

The name comes from the Latin ‘ruber’ meaning red. It is seen as a symbol of love and commitment. In Asia particularly, it is associated with luck, passion and power.

Burmese warriors had rubies set into their armour, as they believed they would offer them protection in battle. Some even had rubies embedded in their flesh for added security.

Rubies, like sapphires, are a form of corundum – the name for aluminium oxide. Unlike sapphires, which come in an array of colours, rubies are always red, and the colour derives from chromium in their chemical make-up. Shades vary from the ultra desirable, but challengingly named, pigeon’s blood ruby to much pinker varieties.

Historically, the most sought after rubies came from Burma (now Myanmar). However, nowadays Mozambique has become one of the largest suppliers of new rubies into the market.

After diamonds, rubies are the hardest of all gemstones and also the most expensive coloured gemstone.

Until recently, ‘The Sunrise Ruby’, which formed the centrepiece of a sensational ruby and diamond ring by Cartier, was the most expensive ruby in the world and the most expensive coloured stone. However, on 8th June 2023 Sotheby’s sold the world’s largest Mozambiquan ruby, which weighs 55.22 carats. It made a world record-breaking $34.8 million, thus becoming the largest and most valuable ruby ever to sell at auction.

The ruby and diamond necklace worn by Julia Roberts in the film Pretty Woman, was said to be worth about $750,000 shortly after the movie was made 30 years ago. The price of rubies has soared since then. Imagine what it might be worth today.