Gem Rough

Topaz Blue Untreated - rough

10 available Gems

Item Number
Gemstone
Natural Untreated Bicolor Dichroic Topaz
Origin
Africa
Weight (ct)
143.60 ct
Dimensions (mm)
33 x 27.7 x 19.5
Color
Very Light Sky Blue to Pale Silver-Champagne.
Shape
Natural Rough
Clarity
Clean, transparent, facet grade
Tone / Saturation
3D View

* 1.0 Ct = 0.2 Gr ** Images Were Taken Under Open Daylight (6,500K), For Color Change Gems Additionally Under Iridescent Light Source (2700K)
Price per Carat
$1.08
Item Number
Gemstone
Natural Untreated Blue Topaz
Origin
Saint Anne Mine, Rhodesia / Zimbabwe
Weight (ct)
42.31 ct
Dimensions (mm)
as photographed / video
Color
Rich Sky Blue with Electric Blue Overtone
Shape
Natural Rough
Clarity
Transparent, carving / semi facet grade
Tone / Saturation
3D View

* 1.0 Ct = 0.2 Gr ** Images Were Taken Under Open Daylight (6,500K), For Color Change Gems Additionally Under Iridescent Light Source (2700K)
Price per Carat
$2.17
Item Number
Gemstone
Natural Untreated Blue Topaz
Origin
Saint Anne Mine, Rhodesia / Zimbabwe
Weight (ct)
53.28 ct
Dimensions (mm)
as photographed / video
Color
Rich Sky Blue with Electric Blue Overtone
Shape
Natural Rough
Clarity
Transparent, carving / semi facet grade
Tone / Saturation
3D View

* 1.0 Ct = 0.2 Gr ** Images Were Taken Under Open Daylight (6,500K), For Color Change Gems Additionally Under Iridescent Light Source (2700K)
Price per Carat
$2.14
Item Number
Gemstone
Natural Untreated Blue Topaz
Origin
Saint Anne Mine, Rhodesia / Zimbabwe
Weight (ct)
62.10 ct
Dimensions (mm)
as photographed / video
Color
Rich Sky Blue with Electric Blue Overtone
Shape
Natural Rough
Clarity
Transparent, carving / semi facet grade
Tone / Saturation

* 1.0 Ct = 0.2 Gr ** Images Were Taken Under Open Daylight (6,500K), For Color Change Gems Additionally Under Iridescent Light Source (2700K)
Price per Carat
$2.13
Item Number
Gemstone
Natural Untreated Blue Topaz
Origin
Saint Anne Mine, Rhodesia / Zimbabwe
Weight (ct)
64.21 ct
Dimensions (mm)
as photographed / video
Color
Rich Sky Blue with Electric Blue Overtone
Shape
Natural Rough
Clarity
Transparent, carving / semi facet grade
Tone / Saturation
3D View

* 1.0 Ct = 0.2 Gr ** Images Were Taken Under Open Daylight (6,500K), For Color Change Gems Additionally Under Iridescent Light Source (2700K)
Price per Carat
$2.12
Item Number
Gemstone
Natural Untreated St. Anne Blue Topaz
Origin
Saint Anne Mine, Rhodesia / Zimbabwe
Weight (ct)
150.80 ct
Dimensions (mm)
40 x 23.9 x 22
Color
Rich Sky Blue
Clarity
Transparent, semi facet / cabochon / top collector grade
Treatment
None
Notes

The St.Anne mine in Zimbabwe was closed 2 years ago.

3D View

* 1.0 Ct = 0.2 Gr ** Images Were Taken Under Open Daylight (6,500K), For Color Change Gems Additionally Under Iridescent Light Source (2700K)
Price per Carat
$2.98
Item Number
Gemstone
Natural Untreated St. Anne Blue Topaz
Origin
Saint Anne Mine, Rhodesia / Zimbabwe
Weight (ct)
231.20 ct
Dimensions (mm)
54 x 30 x 25
Color
Rich Sky Blue
Clarity
Transparent with Tourmaline crystals
Treatment
None
3D View

* 1.0 Ct = 0.2 Gr ** Images Were Taken Under Open Daylight (6,500K), For Color Change Gems Additionally Under Iridescent Light Source (2700K)
Price per Carat
$1.42
Item Number
Gemstone
Natural Untreated St. Anne Blue Topaz
Origin
Saint Anne Mine, Rhodesia / Zimbabwe
Weight (ct)
56.90 ct
Dimensions (mm)
as photographed / video
Color
Rich Sky Blue
Clarity
Mostly transparent with some natural flaws
Treatment
None
3D View

* 1.0 Ct = 0.2 Gr ** Images Were Taken Under Open Daylight (6,500K), For Color Change Gems Additionally Under Iridescent Light Source (2700K)
Price per Carat
$1.83
Item Number
Gemstone
Natural Untreated St. Anne Blue Topaz
Origin
Saint Anne Mine, Rhodesia / Zimbabwe
Weight (ct)
88.60 ct
Dimensions (mm)
25 x 24.8 x 17.5
Color
Rich Sky Blue
Clarity
Transparent, semi facet / cabochon / top collector grade
Treatment
None
Notes

The St.Anne mine in Zimbabwe was closed 2 years ago.

3D View

* 1.0 Ct = 0.2 Gr ** Images Were Taken Under Open Daylight (6,500K), For Color Change Gems Additionally Under Iridescent Light Source (2700K)
Price per Carat
$2.93
Item Number
Gemstone
Natural Untreated St. Anne Blue Topaz
Origin
Saint Anne Mine, Rhodesia / Zimbabwe
Weight (ct)
90.10 ct
Dimensions (mm)
29.5 x 24.1 x 17
Color
Rich Sky Blue
Clarity
Facet / cabochon / top collector grade
Treatment
None
3D View

* 1.0 Ct = 0.2 Gr ** Images Were Taken Under Open Daylight (6,500K), For Color Change Gems Additionally Under Iridescent Light Source (2700K)
Price per Carat
$3.87

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