It's 10,363 carats (about five pounds) and is worth $5 million to $6 million. Highlights: Sapphires are the second-most popular stones after diamonds and have sold for up to $135,000 per carat.

Jane Phare talks to a Christchurch brother and sister who used to forage for coloured agate on a South Island beach and now run a luxury gemstone and jewellery business. It was a search for a special ...

Sapphire is generally known as a blue gemstone but surprisingly it comes in a wide range of colors and quality variations. In general, the more intense and uniform the color is, the more valuable the ...

Heating is an accepted treatment for sapphire. But for fine-quality sapphire, confirmation from an independent laboratory like GIA that there is no evidence of heat adds to a sapphire’s rarity and ...

Not only are the stones precious but they are also steeped ... On her wedding day to Prince Phillip in 1947, she donned an impressive sapphire set worth a whopping £5 million - which was bought ...

Other valuable stones have been found there in the past. Sri Lanka is a leading exporter of sapphires and other precious gems. Last year, the country earned around half a billion dollars through ...

To celebrate the 'September stone,' we look back at five of the most ... comfortably fit her finger which has had no effect on the value of this truly unique piece." Princess Diana’s Saudi Sapphire ...