This stunning black star sapphire gemstone measures 16.40 x 14.00 x 10.00 mm and weighs 26.11 carats. Its exquisite cabochon shape and excellent cut grade make it a perfect addition to any jewelry collection. This natural gemstone was ethically sourced from Thailand and has not undergone any treatments. The gemstone's clarity grade is unspecified and upon request, certification can be provided. This loose gemstone is perfect for those looking to create a unique and beautiful piece of jewelry. Its deep black color and natural form make it a rare find.