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20 available Gems

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
$89.00
Item Number
Gemstone
Natural Untreated Blue Topaz
Origin
Nigeria, Africa
Weight (ct)
5.61 ct
Dimensions (mm)
16.0 x 10.0 x 6.7
Calibrated Size
No
Type of Cut
Custom Designed PEAR
Cutter
Faceted by Ravenstein Gem Co.
Color
Very Very Light Blue
Clarity Scale
FVVS1VVS2VS1VS2SI1SI2P1P2
Treatment
None
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
$15.86
$126.00
Item Number
Gemstone
Natural Untreated Blue Topaz
Origin
Nigeria, Africa
Weight (ct)
8.23 ct
Dimensions (mm)
14.0/14.1 x 9.0/9.0 x 5.9/6.1
Calibrated Size
No
Type of Cut
Custom Designed PEAR
Cutter
Faceted by Ravenstein Gem Co.
Color
Very Very Light Blue
Clarity Scale
FVVS1VVS2VS1VS2SI1SI2P1P2
Treatment
None
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
$15.31
$330.00
Item Number
Gemstone
Natural Untreated Blue Topaz
Origin
Nigeria, Africa
Weight (ct)
11.10 ct
Dimensions (mm)
11.0/11.0 x 10.9/10.9 x 7.0/7.0
Calibrated Size
No
Type of Cut
Custom Designed TRIANGLE
Cutter
Faceted by Ravenstein Gem Co.
Color
Light Pastel Blue
Clarity Scale
FVVS1VVS2VS1VS2SI1SI2P1P2
Treatment
None
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
$29.73
$335.00
Item Number
Gemstone
Natural Untreated Blue Topaz
Origin
Nigeria, Africa
Weight (ct)
13.25 ct
Dimensions (mm)
12.6 x 9.3 x 8.4 mm and 12.7 x 9.3 x 8.2 mm
Calibrated Size
No
Type of Cut
Custom Designed OVAL
Cutter
Faceted by Ravenstein Gem Co.
Color
Light Pastel Blue
Clarity Scale
FVVS1VVS2VS1VS2SI1SI2P1P2
Treatment
None
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
$25.28
$72.00
Item Number
Gemstone
Natural Untreated Blue Topaz
Origin
Nigeria, Africa
Weight (ct)
3.08 ct
Dimensions (mm)
8.5 mm Diameter x 6.4
Calibrated Size
No
Type of Cut
Custom Designed ROUND
Cutter
Faceted by Ravenstein Gem Co.
Color
Very Light Pastel Blue
Clarity Scale
FVVS1VVS2VS1VS2SI1SI2P1P2
Treatment
None
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
$23.38
Item Number
Gemstone
Natural Untreated Blue Topaz
Origin
Nigeria, Africa
Weight (ct)
4.02 ct
Dimensions (mm)
12.0 x 8.0 x 6.7
Calibrated Size
No
Type of Cut
Custom Designed MARQUISE
Cutter
Faceted by Ravenstein Gem Co.
Color
Bluish Tint
Clarity Scale
FVVS1VVS2VS1VS2SI1SI2P1P2
Treatment
None
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
$19.90

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