54.32ct Trillion Amethyst 28mm Vallorbe Swiss Diamond Needle File DA8401.126 0℃~-200℃

0℃~-200℃

With micrometric screw for rectifying end shakes

50mm Cone Cross Cut

4 sizes: Ø10

54.32ct Trillion Amethyst 28mm Vallorbe Swiss Diamond Needle File DA8401.126 0℃~-200℃Amethysts lustre is vitreous, it rates 7 on the Mohs scale which makes it suitable for jewellery that has secure settings to protect the stone from wear. Depending on the transparency of the stone which can be anything between transparent to opaque, amethysts are cut into faceted gems, cabochons, beads or shaped into carvings. Very commonly they are left intact as geodes, natural specimens of crystals still attached to their host rock, that become