Synthetics
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Geneva Ruby was the first synthetic gemstone ever produced, a historic rarity!
cut: oval
origin: Switzerland
treatment: synthetic
clarity: distinct inclusions
In the 1960ies Johann Lechleitner of Innsbruck, Tyrol, Austria, was the first to hydrothermally produce synthetic emeralds by overgrowing seed crystals of natural beryl with synthetic material. The stones were marketed under the names "Symerald" and "Emerita". In this specimen from an early generation remnants of the seed crystal can be seen.
cut: baguette
origin: Austria
treatment: synthetic
clarity: very distinct inclusions
Produced in China in the early 1990ies
cut: cabochon oval
origin: China
treatment: synthetic
clarity: semi-translucent
cut: cabochon oval
origin: China
treatment: synthetic
clarity: semi-translucent
cut: cabochon oval
origin: China
treatment: synthetic
clarity: translucent
cut: cabochon oval
origin: China
treatment: synthetic
clarity: translucent
produced in the 1980ies, from an old gemmological collection
cut: round plate
origin: Switzerland
treatment: synthetic
clarity: opaque
shows the typical lizard skin effect of early gilson synthetic opals
cut: square
origin: Switzerland
treatment: untreated
clarity: opaque
cut: square
origin: unknown
treatment: synthetic
clarity: eyeclean
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