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19 available Gems

Item Number
Gemstone
Amethyst
Origin
Bahia State, Brazil
Weight (ct)
6.68 ct
Dimensions (mm)
14.8 x 10.4 x 8.2
Calibrated Size
No
Type of Cut
Custom Designed Half Moon
Cutter
Faceted by Ravenstein Gem Co.
Color
Rich Purple with Lavender 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
$23.95
$74.00
Item Number
Gemstone
Apatite
Origin
Mexico
Weight (ct)
3.35 ct
Dimensions (mm)
10.0 x 7.5 x 6.0
Calibrated Size
No
Type of Cut
Custom Designed Cushion Brilliant
Cutter
Faceted by Ravenstein Gem Co.
Color
Lively Yellow 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
$22.09
Item Number
Gemstone
Gold Oregon Sunstone
Origin
PANA Mine, Southern Oregon, USA
Weight (ct)
5.83 ct
Dimensions (mm)
15.0 x 11.2 x 7.0
Calibrated Size
No
Type of Cut
Modified Oval Brilliant
Cutter
Faceted by Ravenstein Gem Co.
Color
Pastel GOLD
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
$20.58
Item Number
Gemstone
Peacock Green Schiller Oregon Sunstone
Origin
PANA Mine, Southern Oregon, USA
Weight (ct)
6.69 ct
Dimensions (mm)
15.3 x 9.3 x 7.3
Calibrated Size
No
Type of Cut
Modified Radiant Baguette
Cutter
Faceted by Ravenstein Gem Co.
Color
Peacock-Seafoam Green-Blue with Perfect A (0) 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
$171.90
Item Number
Gemstone
Malaia / Malaya Garnet
Origin
Eastern Africa
Weight (ct)
0.74 ct
Dimensions (mm)
8.1 x 4.3 x 3.3
Calibrated Size
No
Type of Cut
Custom Designed PEAR
Cutter
Faceted by Ravenstein Gem Co.
Color
Pink Peach
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
$110.81
$105.00
Item Number
Gemstone
Natural Untreated Tourmaline
Origin
Malawi, Africa
Weight (ct)
2.62 ct
Dimensions (mm)
11.1 x 8.0 x 5.3
Calibrated Size
No
Type of Cut
Radiant MARQUISE
Cutter
Faceted by Ravenstein Gem Co.
Color
Cinnamon-Yellow
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
$40.08
Item Number
Gemstone
Natural Tourmaline
Origin
Congo, Africa
Weight (ct)
3.28 ct
Dimensions (mm)
11.0 x 8.3 x 6.0
Calibrated Size
No
Type of Cut
Custom Designed Half Moon
Cutter
Faceted by Ravenstein Gem Co.
Color
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
$68.60
Item Number
Gemstone
Unheated Tourmaline
Origin
Malawi, Africa
Weight (ct)
2.55 ct
Dimensions (mm)
10.0 x 6.1 x 5.0
Calibrated Size
No
Type of Cut
Radiant OCTAGON
Cutter
faceted by Ravenstein Gem Co., EU
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
$41.18
$190.00
Item Number
Gemstone
Natural Unheated Blue Sapphire
Origin
Kenya
Weight (ct)
0.77 ct
Dimensions (mm)
9.6 x 4.3 x 2.6
Calibrated Size
No
Type of Cut
Custom Designed MARQUISE
Cutter
Faceted by Ravenstein Gem Co.
Color
Blue
Clarity Scale
FVVS1VVS2VS1VS2SI1SI2P1P2
Clarity
VVS1 with very slight schiller
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
$246.75
Item Number
Gemstone
Obsidian
Origin
Oregon, USA
Weight (ct)
3.78 ct
Dimensions (mm)
9.6 x 9.1 x 7.5
Calibrated Size
No
Type of Cut
Custom Designed Octagon
Cutter
cut by Ravenstein Gem Co.
Color
Gray
Clarity
Translucent
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
$21.96

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Ravenstein Gem Co. LLC 2026 ยฉ
Made By a Peanut
JOGS TUCSON GEM SHOW
Where:
Tucson Expo Center, Booth #E324
When:
September 3 - 6, 2026

Find more details here.