Tuesday 3 November 2015

World's Most Expensive Gemstones!

These are some of the rarest and most expensive of gems from around the world according to Forbes. The most expensive, the Blue Diamond valued at $55 million, the Pink Diamond valued between $23 - 28 million, and the 'Red Diamond' valued at $1,000,000 per carat, while Jeremejevite is valued at $2,000 per carat. 

Below are pictures of the gems in their raw and finished state.

Blue Diamond:

The Blue Diamond is reportedly valued at $55 million

Pink Diamond: 

The Pink Diamond is reportedly valued between $23 - 28 million

Red Diamond: 
Discovered by a Brazilian farmer,in the Abaetezinho river in 1990 in Alto Paranaiba region, this is believed to be the rearest of the gems as there are less than 30 red diamonds found around the world, with most of them being less than half a carat. 

The Red Diamond is reportedly currently valued at $1,000,000 per carat.

Named after its discoverer Richard Taffe who found the first sample, which was a cut and polished gem in October of 1945 in a jeweler's shop in Dublin- Ireland, Taafeite is a very rare mineral and often misidentified as spinel. The double refraction found in Taafeite differentiates it from spinel. 

Taaffeite is reportedly currently valued at $35,000 per carat.

First discovered in Madagascar in 1902, this gem with a lovely blue-green color is seldom seen in collections because few collectors have even heard of it or know it exists in cuttable form. 

Grandidierite  is currently valued at $20,000 per carat.

Serendibite is an extremely rare mineral has a complex chemical formula with many side branches of calcium, boron, aluminum, magnesium. It was first discovered in the in Sri-Lanka, in 1902.  

Serendibite is currently valued at $18,000 per carat.

Found in cooled kimberlites that formed over the course of 1 to 3 billion years, Diamonds are pure carbon arranged in a diamond lattice, which accounts for it’s incredible strength and durability. This stones are renowned as a material with superlative physical qualities, most of which originate from the strong covalent bonding between its atoms. In particular, diamond has the highest hardness and thermal conductivity of any bulk material. 

Diamond is currently valued at $15,000 per carat.

Found in  the Ural Mountains, Russia in the 1830′s, this is a very rare and highly valuable gemstone, and until recently was extremely difficult to obtain due to its rarity. 

Alexandrite is currently valued at $12,000 per carat.

Red Beryl: 
The gemstone has several different names: Red beryl, red emerald, or bixbite.  In nature, pure beryl is colorless but acquires it’s coloration from trace amounts of additional elements. The mineral was originaly named bixbite, but now red beryl is the most accepted designation. 

Red Beryl  is currently valued at $10,000 per carat.

An extremely rare member of the taaffeite family which was discovered in the Musgrave Range of South Australia, in 1967. The Musgravite is a gemstone named after the Musgrave Ranges, Australia, where it was reportedly first discovered. 

Musgravite  is currently valued at $6000 per carat.

This rare stone is found in California and San Benito County.
It is a rare blue barium titanium silicate mineral, found in hydrothermally altered serpentinite. Benitoite fluoresces under short wave ultraviolet light, appearing bright blue to bluish white in colour. The more rarely seen clear to white benitoite crystals fluoresce red under long-wave UV light. 

Benitoite  is currently valued at $4000 per carat.

This colourless to very faint pink rare stone was first discovered in the Poudrette Quarry / Mont St. Hilaire / Qu├ębec / Canada, around 1965 by the Poudrette family. Poudretteite is a member of the osumilite/milarite group of minerals.

Poudretteite is currently valued at $3000 per carat.

Fire Opal:
Fire Opal (SiO2·nH2O) is actually not technically a mineral but instead is a mineraloid. They are unique in the lush world of the opals. They were already admired as symbols of the most fervent love in ancient times, in India and in the ancient Persian kingdom, and among the Amerindians and Central America . 

Fire Opal is currently valued at $2,300 per carat.

First found in the Adun-Chilon Mountains in Siberia in 1883.This is a rare aluminium borate mineral with variable fluoride and hydroxide ions, with a chemical formula of Al6B5O15(F,OH)3. Due to the fact that it has a similar hardness as quartz, 6.5 to 7.5 on the Mohs scale, it is ideal for jewellery making. 

Jeremejevite is currently valued at $2000 per carat.

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