Posted on March 1, 2019April 1, 2019 by Laurie Donovan Pendant with Aquamarine and Black Tahitian Pearl Aquamarine is 7.5 – 8.0 on the Mohs Hardness scale making it an excellent jewelry gemstone. The iridescent tones of this Tahitian Black Pearl drop are nicely enhanced by the princess cut aquamarine. Post navigationPrevious post: Aquamarine Beaded NecklaceNext post: Beryl Necklace