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1921 available Gems

Item Number
Gemstone
Natural Untreated Gemmy Sapphire Crystal
Origin
Mozambique
Weight (ct)
7.37 ct
Dimensions (mm)
14.8 x 8.3 x 7
Color
Green-Blue
Shape
Excellent semi terminated crystal
Clarity
Gemmy, mostly transparent with some natural feathers and crystal inclusions, semi facet grade
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
$11.53
Item Number
Gemstone
Chrome Green-Teal Dichroic Oregon Sunstone
Origin
PANA Mine, Southern Oregon, USA
Weight (ct)
7.86 ct
Dimensions (mm)
15.5 x 9.3 x 8.5
Calibrated Size
No
Type of Cut
45° Stepped Crown OCTAGON Barion Pavillion
Cutter
Faceted by Ravenstein Gem Co.
Color
Chrome Green-Teal with Orangey Flashes
Clarity Scale
FVVS1VVS2VS1VS2SI1SI2P1P2
Treatment
None
Tone / Saturation
Notes

Highly valued color from Little Eagle Butte. Perfect for high-end jewelry / investment.

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
$87.79
$2,840.00
Item Number
Gemstone
Blue-Teal Dichroic Schiller Oregon Sunstone
Origin
PANA Mine, Southern Oregon, USA
Weight (ct)
8.83 ct
Dimensions (mm)
19.8 x 8.8 x 7.7
Calibrated Size
No
Type of Cut
Modified Stepped RHOMBOID
Cutter
Faceted by Ravenstein Gem Co.
Color
Deep Blue-Teal, Orange Fire, and Touch of Copper Schiller
Clarity Scale
FVVS1VVS2VS1VS2SI1SI2P1P2
Treatment
None
Tone / Saturation
Notes

Investment grade gemstone.

Rarest color ever discovered.

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
$321.63
Item Number
Gemstone
Danburite floater crystal
Origin
La Aurora mine, Charcas, San Luis Potosí, Mexico
Weight (ct)
60.0 ct
Dimensions (mm)
42 x 16.5 x 14.2
Color
Near colorless / slight pink tint
Shape
Etched Floater Crystal
Clarity
Transparent, mostly flawless
Treatment
None
Tone / Saturation
Notes

Extreme rarity! Only a handful of pieces in existence!

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
$3.08
$180.00
Item Number
Gemstone
Montebrasite
Origin
Brazil
Weight (ct)
2.78 ct
Dimensions (mm)
8.2/8.2 x 6.3/6.2 x 4.2/3.8
Calibrated Size
Yes
Type of Cut
OVAL Brilliant
Cutter
native cut-Brazil / quality of cut - good
Color
Very Light Gold
Clarity Scale
FVVS1VVS2VS1VS2SI1SI2P1P2
Treatment
None
Tone / Saturation
Notes

Extremely rare gemstone! For knowledgeable collectors and rarity hunters.

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
$64.75
Item Number
Gemstone
Natural Untreated Yellow Imperial Topaz
Origin
W. Africa
Weight (ct)
12.85 ct
Dimensions (mm)
21.8 x 10.4 x 6.3
Calibrated Size
No
Type of Cut
Custom Designed RHOMBOID Brilliant
Cutter
Faceted by Ravenstein Gem Co.
Color
Vivid Yellow-Gold. Strong shift to Pink-Lavender under long UV light.
Clarity Scale
FVVS1VVS2VS1VS2SI1SI2P1P2
Treatment
None
Tone / Saturation
Notes

Extremely rare gemstone from unique location.

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
$60.31
Item Number
Gemstone
Natural Zircon
Origin
Sri Lanka
Weight (ct)
0.92 ct
Dimensions (mm)
8.9 x 5.3 x 2.7
Calibrated Size
No
Type of Cut
Modified PEAR
Cutter
Faceted by Ravenstein Gem Co.
Color
Champagne-Pink-Walnut
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
$39.13
Item Number
Gemstone
Danburite
Origin
La Aurora mine, Charcas, San Luis Potosí, Mexico
Weight (ct)
7.04 ct
Dimensions (mm)
18.5 x 9.3 x 6.5
Calibrated Size
No
Type of Cut
Custom Designed RHOMBOID Brilliant
Cutter
Faceted by Ravenstein Gem Co.
Color
Pink Tint / near colorless
Clarity Scale
FVVS1VVS2VS1VS2SI1SI2P1P2
Treatment
None
Tone / Saturation
Notes

Amazing scintillation and fire due to perfect cutting and very high refractive index and light dispersion.

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
$24.86
Item Number
Gemstone
Natural Topaz
Origin
Namibia
Weight (ct)
8.16 ct
Dimensions (mm)
14.2 x 10.8 x 6.8
Calibrated Size
No
Type of Cut
Custom Designed Shield
Cutter
Faceted by Ravenstein Gem Co.
Color
Water Clear-Colorless
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
$20.22
$190.00
Item Number
Gemstone
Natural Tourmaline
Origin
Nigeria, Africa
Weight (ct)
4.13 ct
Dimensions (mm)
15.0 x 9.2 x 6.0
Calibrated Size
No
Type of Cut
Radiant Free Form
Cutter
Faceted by Ravenstein Gem Co.
Color
Olive Green to Green-Yellowish
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
$46.00

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