Details
The detachable pendant centering on a 20.21 carat pear shaped yellow-brown diamond framed by round diamonds and suspened from a graduated diamond neckalce.

METAL: 18k white gold
DIAMONDS: 1 pear brilliant-cut fancy deep yellow-brown diamond measuring 26.40 x 14.47 x 8.65 mm and weighing 20.21 carats
- 276 round diamonds stated to weigh a total of 47.29 carats
CERTIFICATE: With report 5131967101 dated 17 October 2011 from the Gemological Institute of America stating that the 20.21 carat diamond is Fancy Deep Yellow-Brown, natural color, VS1 clarity
SIGNATURE: GD (jeweler's mark for Graff, to pendant and necklace)
MARKS: 750, British assay marks, numbered
SIZE/DIMENSIONS: 38.1 cm length (necklace); 4.8 cm length, 3.2 cm at widest point (pendant)
GROSS WEIGHT: 90.0 grams

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Brown diamonds are the most common fancy color diamond and are found in mines throughout the world including those in South Africa as all as the Argyle mine of Australia. The brown color can arise from the substitution of carbon for nitrogen - the same element that is responsible for yellow- or from structural alterations of the diamond crystal lattice. Brown diamonds can be found in a variety of hues and tones, which have inspired color names such as chocolate, cognac, amber and champagne.
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