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18 available Gems

$45.00
Item Number
Gemstone
Colombianite
Weight (ct)
1.60 ct
Dimensions (mm)
10.6 x 7.2 x 5.1
Calibrated Size
No
Type of Cut
Custom Designed MARQUISE
Cutter
Faceted by Ravenstein Gem Co.
Color
Walnut-Mahogany
Clarity
Transparent, clean
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
$28.13
$92.00
Item Number
Gemstone
Colombianite
Weight (ct)
3.49 ct
Dimensions (mm)
12.0 x 9.2 x 7.3
Calibrated Size
No
Type of Cut
Custom Designed MARQUISE
Cutter
Faceted by Ravenstein Gem Co.
Color
Walnut-Mahogany
Clarity
Transparent, clean
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
$26.36
$96.00
Item Number
Gemstone
Colombianite
Weight (ct)
3.72 ct
Dimensions (mm)
11.4 x 11.3 x 7.4
Calibrated Size
No
Type of Cut
Custom Designed TRILLION
Cutter
Faceted by Ravenstein Gem Co.
Color
Walnut-Mahogany
Clarity
Transparent, clean
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
$25.81
$125.00
Item Number
Gemstone
Colombianite
Origin
Colombia
Weight (ct)
3.89 ct
Dimensions (mm)
10.0/10.0 x 8.1/8.1 x 6.3/6.0 mm
Calibrated Size
No
Type of Cut
Modified MARQUISE
Cutter
Faceted by Ravenstein Gem Co.
Color
Walnut-Mahogany
Clarity
Transparent
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
$32.13
$150.00
Item Number
Gemstone
Colombianite
Origin
Colombia
Weight (ct)
4.70 ct
Dimensions (mm)
8.7/8.9 x 8.6/8.9 x 6.6/6.6
Calibrated Size
No
Type of Cut
Custom Designed HEXAGON
Cutter
Faceted by Ravenstein Gem Co.
Color
Walnut-Mahogany
Clarity
Transparent
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
$31.91
$132.00
Item Number
Gemstone
Colombianite
Weight (ct)
5.24 ct
Dimensions (mm)
12.2 x 12.1 x 8.1
Calibrated Size
Yes
Type of Cut
Custom Designed Square CUSHION
Cutter
Faceted by Ravenstein Gem Co.
Color
Walnut-Mahogany
Clarity
Transparent, clean
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
$25.19
$195.00
Item Number
Gemstone
Colombianite
Weight (ct)
8.11 ct
Dimensions (mm)
15.3 x 11.7 x 9.6
Calibrated Size
No
Type of Cut
Custom Designed CUSHION
Cutter
Faceted by Ravenstein Gem Co.
Color
Walnut-Mahogany
Clarity
Transparent, clean
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
$24.04
Item Number
Gemstone
Tourmaline Verdelite
Origin
Zambia
Weight (ct)
1.30 ct
Dimensions (mm)
7.8 x 6.7 x 4.2
Type of Cut
Custom Designed CUSHION
Cutter
Faceted by Ravenstein Gem Co.
Color
Deep Lime Green
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
$80.77
$120.00
Item Number
Gemstone
Natural Untreated Tourmaline
Origin
Mozambique
Weight (ct)
1.50 ct
Dimensions (mm)
7.4 mm Diameter x 4.6
Type of Cut
Modified ROUND
Cutter
Faceted by Ravenstein Gem Co.
Color
Green Orangey
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
$80.00
Item Number
Gemstone
Natural Untreated Tourmaline
Origin
Mozambique
Weight (ct)
2.77 ct
Dimensions (mm)
9.7 x 7.1 x 5.4
Type of Cut
Radiant OCTAGON
Cutter
Faceted by Ravenstein Gem Co.
Color
Light Pastel Champagne
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
$104.69

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