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1922 available Gems

$325.00
Item Number
Gemstone
Amethyst
Origin
Rwanda, Africa
Weight (ct)
11.76 ct
Dimensions (mm)
16.7 x 15.3 x 10.6
Calibrated Size
No
Type of Cut
Custom Designed Shield
Cutter
Faceted by Ravenstein Gem Co.
Color
Purple-Lavender
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
$27.64
$148.00
Item Number
Gemstone
Crystal Opal
Origin
Welo, Ethiopia
Weight (ct)
3.89 ct
Dimensions (mm)
15.4x 10.1 x 5.3
Calibrated Size
No
Type of Cut
Pear Cabochon
Cutter
cut by Ravenstein Gem Co.
Color
Play of colors 10 / 10
Clarity Scale
FVVS1VVS2VS1VS2SI1SI2P1P2
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
$38.05
$200.00
Item Number
Gemstone
Dichroic Schiller Oregon Sunstone
Origin
PANA Mine, Southern Oregon, USA
Weight (ct)
3.32 ct
Dimensions (mm)
13.6 x 8.0 x 6.9
Calibrated Size
No
Type of Cut
Custom Designed PEAR
Cutter
Faceted by Ravenstein Gem Co.
Color
Pink-Green with Copper Schiller
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
$60.24
$148.00
Item Number
Gemstone
Tourmaline Rubellite
Origin
Nigeria, Africa
Weight (ct)
1.47 ct
Dimensions (mm)
10.2 x 6.0 x 4.3
Calibrated Size
No
Type of Cut
Marquise Brilliant
Cutter
Miro - EU
Color
Rose Red-Pink with Purplish overtones and flashes
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
$100.68
$155.00
Item Number
Gemstone
Dichroic Oregon Sunstone
Origin
PANA Mine, Southern Oregon, USA
Weight (ct)
2.45 ct
Dimensions (mm)
10.1 x 8.7 x 5.2
Calibrated Size
No
Type of Cut
Custom Designed Shield
Cutter
Faceted by Ravenstein Gem Co.
Color
Green Gold 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
$63.27
$77,176.00
Item Number
Gemstone
Demantoid Garnet
Origin
Ural Mountains, Russia
Weight (ct)
4.41 ct
Dimensions (mm)
10.6 x 8.4 x 5.2
Calibrated Size
No
Type of Cut
Combination Cut by John Dyer
Cutter
cut by John Dyer-USA
Color
Apple GREEN with YELLOWISH Overtone
Clarity
Transparent with horsetail inclusion
Treatment
None
Notes

Investment grade gemstone. Contact: katerina@ravensteingemco.com or ask@johndyergems.com

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
$17,500.23
$160.00
Item Number
Gemstone
Dichroic Oregon Sunstone
Origin
PANA Mine, Southern Oregon, USA
Weight (ct)
2.08 ct
Dimensions (mm)
11.2 x 6.2 x 5.2
Calibrated Size
No
Type of Cut
Custom Designed Rhomboid
Cutter
Faceted by Ravenstein Gem Co.
Color
Pastel Seafoam Green with Gold-Pink Dichroic Shift
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
$76.92
$165.00
Item Number
Gemstone
Green Blue Dichroic Oregon Sunstone
Origin
PANA Mine, Southern Oregon, USA
Weight (ct)
2.47 ct
Dimensions (mm)
14.0 x 5.7 x 4.4
Calibrated Size
No
Type of Cut
Custom Designed Rhomboid
Cutter
Faceted by Ravenstein Gem Co.
Color
Green Blue Pink
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
$66.80
$146.00
Item Number
Gemstone
Pyralspite Garnet
Origin
Eastern Africa
Weight (ct)
54.92 ct
Color
as photographed, Orange-Peach and Cranberry Red
Shape
Alluvial river-worn pebble rough
Clarity
Transparent, Facet Grade
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
$2.66
$111.00
Item Number
Gemstone
Pyralspite Garnet
Origin
Eastern Africa
Weight (ct)
46.76 ct
Color
as photographed
Shape
Alluvial river-worn pebble rough
Clarity
Transparent, Facet Grade
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
$2.37

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