LONDON (Reuters) - A flawless blue topaz gemstone, said to be the largest of its kind, is set to go on display at London's Natural History Museum. The Ostro stone weighs around 2 kg (4.4 lb) and will ...

Yellow coloured gemstone is a topaz gemstone. This gem belongs to the planet Jupiter. It is said that a person who has Jupiter in an auspicious position in his horoscope, Topaz can prove to be very ...

A blue topaz stone, thought to be the largest-ever, is to go on permanent loan to the Natural History Museum in London. It has been handed over by the family of gemstone pioneer Max Ostro, who ...

Look for durable gemstone engagement rings, such as those made with sapphires, rubies and emeralds. One thing to keep in mind: Sapphire, ruby, topaz, aquamarine and amethyst are some of the most ...

Have you ever seen an over 9,000 carat gemstone in person before? It's certainly not something you can wear on your finger but it is something you see for the first time at the Perot Museum of Nature ...

LONDON (Reuters) - A flawless blue topaz gemstone, said to be the largest of its kind, is set to go on display at London's Natural History Museum. The Ostro stone weighs around 2 kg (4.4 lb) and will ...