Atantasite cabochon weighing 50 carats and measuring about 40x26mm set in a Fine silver bezel setting. Above the main stone is an Amethyst cabochon weighing 10mm. According to the crystalcouncil.com website, “These crystals are extremely rare and is a once in the life time opportunity to see one in person.” You could actually own one with the purchase of this pendant. The pendant measures almost 3” from the top to the bottom including the bail.