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A few faint polishing lines on crown are only visible by loupe and have no impact on the overall brilliance and luster
cut: cushion
origin: Brazil
treatment: heat treated
clarity: very very small inclusions
cut: emerald cut
origin: Russia
treatment: untreated
clarity: small inclusions
Palmyra colour
cut: round
origin: Brazil
treatment: heat treated
clarity: very very small inclusions
Petrified dinosaur bone
cut: cabochon oval
origin: United States, Morrison Formation, Moab, Utah
treatment: untreated
clarity: opaque
Petrified dinosaur bone
cut: cabochon oval
origin: United States, Morrison Formation, Moab, Utah
treatment: untreated
clarity: opaque
Petrified dinosaur bone
cut: cabochon oval
origin: United States, Morrison Formation, Moab, Utah
treatment: untreated
clarity: very distinct inclusions
Petrified dinosaur bone
cut: cabochon oval
origin: United States, Morrison Formation, Moab, Utah
treatment: untreated
clarity: opaque
Petrified dinosaur bone
cut: cabochon oval
origin: United States, Morrison Formation, Moab, Utah
treatment: untreated
clarity: opaque
Petrified dinosaur bone
cut: cabochon oval
origin: United States, Morrison Formation, Moab, Utah
treatment: untreated
clarity: opaque
Petrified dinosaur bone
cut: cabochon oval
origin: United States, Morrison Formation, Moab, Utah
treatment: surface hardened w. resin
clarity: opaque
Petrified dinosaur bone
cut: cabochon oval
origin: United States, Morrison Formation, Moab, Utah
treatment: untreated
clarity: very distinct inclusions
cut: cabochon oval
origin: China, near Kunming
treatment: untreated
clarity: opaque
cut: cabochon oval
origin: China, near Kunming
treatment: untreated
clarity: opaque
cut: cabochon oval
origin: China, near Kunming
treatment: untreated
clarity: opaque
cut: cabochon oval
origin: China, near Kunming
treatment: untreated
clarity: opaque
cut: cabochon oval
origin: China, near Kunming
treatment: untreated
clarity: opaque
cut: cabochon oval
origin: China, near Kunming
treatment: untreated
clarity: opaque
cut: cabochon oval
origin: China, near Kunming
treatment: untreated
clarity: opaque
The iridescence, i.e. the rainbow effect, is clearly visible in good lighting, but unfortunately impossible to photograph.
cut: cabochon oval
origin: Mexico
treatment: untreated
clarity: very distinct inclusions
The iridescence in this specimen is rather strong but quite impossible to photograph. The white spot is an inclusion of unknown nature
cut: cabochon oval
origin: Mexico
treatment: untreated
clarity: opaque
A magnificent specimen
cut: oval
origin: Tanzania
treatment: untreated
clarity: distinct inclusions
cut: brilliant
origin: Mozambique
treatment: heat treated
clarity: distinct inclusions
cut: brilliant
origin: unknown
treatment: heat treated
clarity: very small inclusions
cut: brilliant
origin: unknown
treatment: heat treated
clarity: very small inclusions
cut: brilliant
origin: unknown
treatment: heat treated
clarity: very small inclusions
cut: oval
origin: Sri Lanka
treatment: heat treated
clarity: distinct inclusions
Minute chip on crown facet edge, not visible on photo, some colour zoning
cut: oval
origin: Sri Lanka
treatment: heat treated
clarity: small inclusions
cut: oval
origin: Sri Lanka
treatment: heat treated
clarity: small inclusions
Location: one of the two Zinggenstöcke mountains, Oberaar lake area, Guttannen, Interlaken-Oberhasli, Bern
cut: oval
origin: Switzerland
treatment: untreated
clarity: eyeclean
cut: cabochon cushion
origin: Brazil
treatment: untreated
clarity: small inclusions