Do black diamonds hold value? YES, especially certified naturally black diamonds and certified treated black diamonds.
The price or value of the black diamonds chiefly depends on the origin of the diamond – natural or treated. Naturally black diamonds are already black in color when mined. Natural Black diamonds are the rarest of the color diamonds hence can be expensive. The price of a one carat naturally black diamond can range between $2000-$3000 and above depending on the clarity and color saturation. Typically natural black diamonds are GIA (Gemological Institute of America) certified (GIA only certifies natural black diamonds). GIA is the world’s most reputed laboratory and all diamonds certified by GIA hold good market value.

Treated black diamonds are natural dull colored diamonds that have been heated or irradiated to achieve a uniform black color. The price of a treated black diamond is radically lower than the natural black diamond; a one carat treated black diamond can range between $200 to a $1,000. This fluctuation of price is because of quality/clarity and diamond color. EGL (European Gemological Laboratory) and AGS (American Gem Society ) are the two most reputed laborarories that test and certify treated black diamonds.

Over the last few years the prices/value of black diamonds have witnessed a steep rise. In fact the value of black diamonds have increased many folds due to the constantly increasing demand. Now, black diamonds have a better resale value more so if the diamond is certified. A diamond certification is not only a proof of its authenticity but can also save you of any fraud and can be even more crucial when you are trying to resell the diamond. Therefore to make sure that your diamond has good value always buy diamonds from a reputed jeweler and always choose certified diamonds especially above 0.50 carats.