Black Opal is Australia’s national gemstone, and black opal is the rarest and most valuable of its kind, at times selling at prices that rival the best diamonds. The stone must have a rich, black background, but base colors come in all shades of gray, which is why opinions vary on what is a “true” black opal. Found in the Lightning Ridge area in northwestern New South Wales, black opals are natural, solid stones that absorb scattered white light, giving it brilliant spectral c
Mongolia. The stone, (5 ft high, weighing six tons) formed mostly of fluorite mineral, glows green in the dark and in China is prized more highly than diamonds. The finders took three years to grind the raw gem down to its pearl shape. It has gone on show in Hainan, southern China, to attract buyers and have measurements taken for a world record bid. It is amazing and glows a blue green in the dark,'
The magnificent partially transparent Rock Crystal Bathtub by Baldi is the only one of its kind in the world. Carved from a single block of rock crystal from Amazonia, the huge bath is large enough for two and boasts a polished interior that contrasts beautifully with its natural semi-rough exterior. Approximately £750,000. baldi.biz View the video http://www.utopiamag.co.uk/if-you-have-to-ask-the-price/
Flawless blue diamond, the most expensive gemstone in the world, sells at auction for £4m
Blue diamond ~ This is one of the rarest gems in the world - a 6.04 carat diamond that is fancy vivid blue color and has internally flawless clarity. The expensive stone was bought by a British jeweler for a record-breaking sum of almost £4 million at a Sotheby's auction in Hong Kong. The selling price makes it the most expensive gemstone in the world, per carat, sold at any auction. The flawless blue diamond fetched £650,000 per carat after intense bidding.