Wednesday, 8 November 2017

Three large diamonds Recovered at Jubilee Pipe




108.34 carat rough diamond 82.82-carat octahedron rough diamond
82.82-carat rough diamond



      163.11 carat rough diamond
163.11 carat rough diamond



Alrosa the Russian miner and top diamond producer by output, recovered three gem quality large rough diamonds.
A 82.82 carat, a 108.34 carat, and a 163.11 carat all light yellow or yellow.

All three rough diamonds were recovered at the Jubilee kimberlite pipe, one of Alrosa’s Mining units Aikhalsky in the country’s northeast.

The three diamonds will be sent to Alrosa’s for assessment in the coming days.

Source: DCLA 

Three large diamonds Recovered at Jubilee Pipe




108.34 carat rough diamond 82.82-carat octahedron rough diamond
82.82-carat rough diamond



      163.11 carat rough diamond
163.11 carat rough diamond



Alrosa the Russian miner and top diamond producer by output, recovered three gem quality large rough diamonds.
A 82.82 carat, a 108.34 carat, and a 163.11 carat all light yellow or yellow.

All three rough diamonds were recovered at the Jubilee kimberlite pipe, one of Alrosa’s Mining units Aikhalsky in the country’s northeast.

The three diamonds will be sent to Alrosa’s for assessment in the coming days.

Source: DCLA 

Monday, 6 November 2017

Diamond fluorescence

There is common misconception that a diamond exhibiting fluorescence under ultra violet light has some kind of colour defect or transparency issue.

This NOT true at all. The naturally occurring fluorescence phenomenon is a unique completely hidden feature, which is present to some level in approximately 30% of all diamonds.

The effect is seen in Diamonds which have Carbon bonds which include boron.

Boron causes the diamond to glow when held under a powerful ultra violet light also known as blacklight.

The amount of boron in the Carbon bond making up the diamond will determine the level of fluorescence.  Fluorescence is rated by the Laboratory as Very Strong, Strong, Medium, Faint, None. This relates to the strength of the fluorescent glow under ultra violet light.

Read More: DCLA

Diamond fluorescence

There is common misconception that a diamond exhibiting fluorescence under ultra violet light has some kind of colour defect or transparency issue.

This NOT true at all. The naturally occurring fluorescence phenomenon is a unique completely hidden feature, which is present to some level in approximately 30% of all diamonds.

The effect is seen in Diamonds which have Carbon bonds which include boron.

Boron causes the diamond to glow when held under a powerful ultra violet light also known as blacklight.

The amount of boron in the Carbon bond making up the diamond will determine the level of fluorescence.  Fluorescence is rated by the Laboratory as Very Strong, Strong, Medium, Faint, None. This relates to the strength of the fluorescent glow under ultra violet light.

Read More: DCLA

Thursday, 2 November 2017

Victor Mine To Be Closed By De Beers in 2019


 
Production will cease at the De Beers Victor mine in Canada in 2019, the company announced Wednesday. 

The Diamond Mine in Ontario started production in July 2008 will continue to operate until the open pit is exhausted. This is in line with the company’s original study of mine and the plan for the project.
The mine has yielded 7 million carats of rough exceeding the forecast of 6 million carats predicted for its life of mine.

De Beers discovered the Victor kimberlite cluster in 1987 the first economically viable mine in Canada.

Source: DCLA 

Victor Mine To Be Closed By De Beers in 2019


 
Production will cease at the De Beers Victor mine in Canada in 2019, the company announced Wednesday. 

The Diamond Mine in Ontario started production in July 2008 will continue to operate until the open pit is exhausted. This is in line with the company’s original study of mine and the plan for the project.
The mine has yielded 7 million carats of rough exceeding the forecast of 6 million carats predicted for its life of mine.

De Beers discovered the Victor kimberlite cluster in 1987 the first economically viable mine in Canada.

Source: DCLA 

Wednesday, 1 November 2017

$42M Expected For Pink Diamond At Christie’s Auction



An Oval Cut Fancy Vivid Pink Diamond  goes under the hammer at the Christie’s Magnificent Jewels sale this month.
The 14.93 carat  Type IIa VVS1 clarity  Oval Diamond, named the Pink Promise is estimated to sell for between $28 million to $42 million USD.

Source: DCLA 

Tiffany Buys Back Titanic Watch for Record $1.97m

Tiffany & Co paid a record $1.97m for a gold pocket watch it made in 1912, and which was gifted to the captain of a ship that rescued mo...