Soviet Amethyst Cut Gemstones Cut:Cushion, 16.1mm, 17.45ct this material is ideal for

this material is ideal for jewelry with a high hardness of 8

It is just a great gem

Together they give the stone a striking yellow to amber color which shifts between more orange and more yellow from light source to light source

and thus naturally have formed cones which should be good preforms for large stones

for customers with older cutkit models who want to incorporate the latest improvements

Soviet Amethyst Cut Gemstones Cut:Cushion, 16.1mm, 17.45ct this material is ideal forThese are hydrothermal amethyst, labgrown material sourced from an old Soviet era collection. Under Dr Sternberg, the Alexandrov lab in the USSR was at the cutting edge of quartz crystal growth, using its piezoelectric properties for radios and clocks. Later, they branched out into growing amethyst, citrine, and other quartzes. Unusual for our site, these particular crystals were originally grown for jewelry, not for science. Some of them have smoky