#synthetic diamonds
December 4, 2011
Diamonds from the Arkansas mine - Natural size. Pike County, Arkansas. 1916. Plate 15-A in U.S. Geological Survey. Bulletin 735. 1923.
U.S. Geological Survey Photographic Library
October 24, 2011
Presidium Duotester
“Makes use of the fact that diamond conducts heat better than any known diamond simulant.“
October 20, 2011
Diamond drill bit
September 19, 2011
September 13, 2011
Paintings by Carly Waito (via The real is not only what can be reproduced, but that which is… - but does it float)
August 13, 2011
Element 6
“Element Six (E6) is a subsidiary of De Beers and the world’s leading manufacturer and supplier of industrial Diamond supermaterials. Element Six operates globally with its head office registered in Luxembourg, and primary manufacturing facilities in China, Germany, Ireland, Sweden, South Africa and the UK.”
August 11, 2011
“The Rapaport Report is the jewelry industry standard for the pricing of diamonds. The report is published weekly and given to jewelers and diamond merchants to set prices for consumers. The report is issued in the form of a table and prices diamonds based on the 5 C’s of diamonds - carat, color, clarity, cut and cost. The Rapaport List is copyrighted and available only to subscribers to its magazine.”
The report is printed on red paper to prevent photocopies.
August 10, 2011
August 5, 2011
De Beers Announces Interim Results
• Record EBITDA of almost US$1.2 billion is a 55% increase over 2010 (US$762 million), reflecting the impact of excellent price growth during the period.
• Sales of rough diamonds by the Diamond Trading Company in H1 2011 were US$3.5 billion (including those through joint ventures) - a 33% increase compared with 2010 - driven by price growth of approximately 35%. This is the highest ever sales figure recorded for the first half of the year, buoyed by continued retail demand from the Indian and Chinese consumer markets and stronger than expected demand in America.
• Carats recovered during the period amounted to 15,53 million, in line with H1 2010 (15,43 million carats).
• Free cash flow of US$469 million is a reduction of 24% on last year due to the timing of stock purchases in the current period compared with 2010.
June 24, 2011
Detecting Synthetics
DiamondSure™ instrument and surface fluorescence image developed by De Beers to help identify synthetic diamonds. This research is carried out by the Consumer Confidence Technical Research team. more here
The De Beers website also states the Responsible Jewellery Council guidelines regarding the disclosure of synthetics:
“A wholly or partially Synthetic diamond must always be disclosed as ‘laboratory created’, ‘laboratory grown’, ‘man-made’, ‘[Manufacturer’s name] created’, and/or ‘Synthetic’ and the description must be equally as conspicuous and immediately preceding the word ‘diamond’.” also, ”Members will not use the words ‘real’, ‘genuine’ or ‘natural’ to describe any Synthetic, or any terms that may disguise the fact that a diamond is Synthetic or that mislead the consumer in any way.”
