Have you bought all of your holiday gifts yet? If not…do you know someone who was really, really, really, really, REALLY good this year? (Or really bad in a way that you liked?)

This Cartier ring is set with a rectangular-cut diamond, weighing approximately 19.86 carats, flanked on either side by a baguette-cut diamond, mounted in platinum. It comes in a Cartier red leather box.

The ring is accompanied by report 2145467335 dated 15 February 2012 from the Gemological Institute of America stating that the diamond is D color, VVS2 clarity; accompanied by a working diagram indicating that the clarity may be potentially internally flawless.

This diamond ring by Cartier is also accompanied by a “supplemental letter from the Gemological Institute of America stating that the diamond has been determined to be a Type IIa diamond. Type IIa diamonds are the most chemically pure type of diamond and often have exceptional optical transparency. Type IIa diamonds were first identified as originating from India (particularly from the Golconda region) but have since been recovered in all major diamond-producing regions of the world. Among famous gem diamonds, the 530.20 carat Cullinan I and the 105.60 carat Koh-i-noor are examples of Type IIa.”

If you’re unfamiliar with diamond stats, this website can give you a good basic intro.

This jaw-dropping diamond ring by Cartier is from the estate of Huguette M. Clark and was sold in Christie’s Magnificent Jewels sale in April 2012. All images and info are thanks to Christie’s.