134,47 ct Amethyst Mastercut - Concave Cut "Firework" - GLT Zertifikat

The visual secret of this amethyst lies in its extraordinary concave cut. While conventional cuts use flat facets, here concave, curved surfaces are expertly carved into the stone. This technique creates a multidimensional refraction of light that breaks the violet hue down into thousands of sparkling flashes. When you look into the stone, you don’t see a static sparkle, but rather a dynamic “firework display” that comes to life with even the slightest movement.

The exceptional quality of this 134.47-carat natural wonder is confirmed by an official appraisal from the Gemmological Laboratory Thal (GLT). The stone is completely transparent and shows no signs of treatment (No Indication of Treatment). With impressive dimensions of over 33 mm, it is a physical testament to geological power and human craftsmanship.

At nearly 135 carats, this amethyst is far more than a gemstone—it is an investment and a prestige object. Whether as the crowning highlight of a private gemstone collection or as the centerpiece of a one-of-a-kind piece of jewelry art: this Mastercut amethyst commands everyone’s attention. Its pure, untreated nature and rare concave cut make it a unique, internationally renowned gem that retains its value.