Coloured Diamonds
Naturally coloured diamonds are some of the rarest and most valuable gemstones found. Coloured diamonds are found the world over, with Australia's Argyle mine being considered one of the most important producers of pink diamonds.
GSL provides two types of certification for coloured diamonds. Smaller stones, or Lots, can be certified as a group on a Coloured Diamond Summary, or, for the larger and more important stones, a full Coloured Diamond Report is provided. These reports list the full specifications of the stone, and in the case of Australian pink and blue diamonds GSL's advanced instrumentation and experience allows it to identify the provenance of the stone.
Similarly to the white diamond certification processes, the difference between the Coloured Diamond Summary and the Coloured Diamond Report is the presence of an inclusion map and/or much more detailed information about the diamond on the Coloured Diamond Report.
Coloured Diamond Grading Reports and Coloured Diamond Grading Summaries are also entered into the GSL Coloured Diamond Register for future reference.
As in the case of white diamonds, as an added service the diamond can be laser inscribed with the laboratory report number to guarantee its identity.
ARGYLE PROVENANCE REPORTS.
GSL offers Argyle Provenance reports that identifies the origin of pink, pink champagne, red, and blue diamonds from the Western Australian Argyle diamond deposit.
Pink, Purplish pink, Pink Rose, and Pink Champagne diamonds from the Argyle Diamond Mine in Western Australia have unique advanced spectroscopic properties that are different from diamonds of similar colour from other locations around the world.
Similarly Blue, Violetish Blue and Grayish Blue diamonds from the Argyle Deposit in Western Australia also have unique spectroscopic properties that are different from blue diamonds that occur in other world locations.
Our advanced spectrometers at GSL which investigate the Photoluminescence and Infrared Properties of each diamond identify these unique characteristics and allow us to verify the origin of these diamonds as the Argyle Diamond Mine in Western Australia.
GSL provides two types of certification for coloured diamonds. Smaller stones, or Lots, can be certified as a group on a Coloured Diamond Summary, or, for the larger and more important stones, a full Coloured Diamond Report is provided. These reports list the full specifications of the stone, and in the case of Australian pink and blue diamonds GSL's advanced instrumentation and experience allows it to identify the provenance of the stone.
Similarly to the white diamond certification processes, the difference between the Coloured Diamond Summary and the Coloured Diamond Report is the presence of an inclusion map and/or much more detailed information about the diamond on the Coloured Diamond Report.
Coloured Diamond Grading Reports and Coloured Diamond Grading Summaries are also entered into the GSL Coloured Diamond Register for future reference.
As in the case of white diamonds, as an added service the diamond can be laser inscribed with the laboratory report number to guarantee its identity.
ARGYLE PROVENANCE REPORTS.
GSL offers Argyle Provenance reports that identifies the origin of pink, pink champagne, red, and blue diamonds from the Western Australian Argyle diamond deposit.
Pink, Purplish pink, Pink Rose, and Pink Champagne diamonds from the Argyle Diamond Mine in Western Australia have unique advanced spectroscopic properties that are different from diamonds of similar colour from other locations around the world.
Similarly Blue, Violetish Blue and Grayish Blue diamonds from the Argyle Deposit in Western Australia also have unique spectroscopic properties that are different from blue diamonds that occur in other world locations.
Our advanced spectrometers at GSL which investigate the Photoluminescence and Infrared Properties of each diamond identify these unique characteristics and allow us to verify the origin of these diamonds as the Argyle Diamond Mine in Western Australia.
