Collector´s gems
Rare gems
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From Tsumeb
cut: oval
origin: Namibia, Tsumeb
treatment: Untreated
clarity: very very small inclusions
Large aquamarine crystal with etch figures at both ends. The hydrofluoric acid causing these figures also etched an included, large tourmaline crystal out of the aquamarine. The result is a surface-reaching "negative crystal", a cavity in the shape of the tourmaline crystal which even shows the tourmalines typical striations!
cut: natural crystal
origin: Pakistan, Gilgit, Hunza Valley
treatment: Untreated
clarity: very distinct inclusions
Exact location is the Nausherwani Mine, Karhan District, Balutchistan
cut: octagon
origin: Pakistan
treatment: Untreated
clarity: distinct inclusions
Rare mineral, discovered 1978, hardly ever facetted, Mohs hardness 9!!
cut: oval
origin: Brazil
treatment: Untreated
clarity: opaque
from the dallas gem mine, california
cut: round
origin: United States
treatment: Untreated
clarity: distinct inclusions
cut: emerald cut
origin: Brazil
treatment: Irradiated
clarity: very distinct inclusions
cut: cushion
origin: Ethiopia
treatment: Untreated
clarity: very small inclusions
From an old gemmological collection, found July 2002 in Laghman, Afghanistan. Several small chips.
cut: emerald cut
origin: Afghanistan
treatment: Untreated
clarity: small inclusions
From an old gemmological collection, found July 2002 in Laghman, Afghanistan. Several small chips.
cut: emerald cut
origin: Afghanistan
treatment: Untreated
clarity: very small inclusions
From an old gemmological collection, found July 2002 in Laghman, Afghanistan. Several very small chips.
cut: emerald cut
origin: Afghanistan
treatment: Untreated
clarity: small inclusions
cut: baguette
origin: Brazil
treatment: Untreated
clarity: very small inclusions
Extremely rare colour
cut: trillion
origin: Brazil
treatment: Untreated
clarity: very small inclusions
Exceptionally large, beautiful hessonite garnet from the Jeffrey Mine in Asbestos, Canada. Shows "treacle" typical for hessonite
cut: round
origin: Canada
treatment: Untreated
clarity: distinct inclusions
Exact location: Gunjale, Ahmednagar District, Maharashtra
cut: cabochon oval
origin: India
treatment: Untreated
clarity: semi-translucent
From Araçuaí, Minas Gerais, Brazil
cut: fancy cut
origin: Brazil
treatment: Untreated
clarity: very distinct inclusions
Very rare, partly transparent secondary mineral of the scheelite group, produced by chemical weathering, exact location: Mahodari, Nasik District, Pandulena Hills, Maharashtra
cut: cabochon oval
origin: India
treatment: Untreated
clarity: very distinct inclusions
Extremely rare manganese silicate
cut: fancy cut
origin: Brazil
treatment: Untreated
clarity: very distinct inclusions
Intergrowth of red tourmaline and white quartz, found 2015 in Brazil
cut: cabochon oval
origin: Brazil
treatment: Untreated
clarity: semi-translucent
Shows a slight colourchange from blue to purple (daylight/incandescent light)
cut: cushion
origin: Sri Lanka
treatment: Untreated
clarity: very small inclusions
Shows distinct colour change
cut: oval
origin: Sri Lanka
treatment: Heat treated
clarity: small inclusions
Origin uncertain, can be Sri Lanka or Madagascar
cut: cabochon oval
origin: unknown
treatment: Untreated
clarity: opaque
Exact location: Morro Velho Mine, Nova Lima, Minas Gerais, Brazil
cut: emerald cut
origin: Brazil
treatment: Untreated
clarity: very, very distinct inclusions
cut: trillion
origin: Brazil
treatment: Untreated
clarity: very, very distinct inclusions
Exceptionally fine colour
cut: oval
origin: Brazil
treatment: Untreated
clarity: very very small inclusions
cut: rough
origin: unknown
treatment: Untreated
clarity: opaque
cut: cabochon hexagon
origin: India
treatment: Untreated
clarity: semi-translucent
Unusual and very attractive trapiche ruby whose star pattern is superimposed by hexagonal growth figures.
cut: cabochon hexagon
origin: India
treatment: Untreated
clarity: semi-translucent
Purplish red Trapiche Ruby with beautiful star pattern
cut: cabochon hexagon
origin: India
treatment: Untreated
clarity: opaque
Unusually large and fine trapiche ruby whose pattern resembles a comet with tail
cut: cabochon hexagon
origin: India
treatment: Untreated
clarity: opaque
cut: cabochon oval
origin: India
treatment: Untreated
clarity: opaque
New location in Sidamo province/Ethiopia. The colour is typical for chrome vesuvianite but curiously the stone does not show the chelseafilter reaction associated with chromium content
cut: rose
origin: Ethiopia
treatment: Untreated
clarity: distinct inclusions
New location in Sidamo province/Ethiopia. The colour is typical for chrome vesuvianite but curiously the stone does not show the chelseafilter reaction associated with chromium content
cut: rose
origin: Ethiopia
treatment: Untreated
clarity: small inclusions
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