Shop

$55.00
Item Number
Gemstone
Sheen Obsidian
Origin
California, USA
Weight (ct)
10.30 ct
Dimensions (mm)
20.2 x 11.9 x 6.5
Calibrated Size
No
Type of Cut
Oval Cabochon
Cutter
Miro - EU
Color
Blackish base with steal bluish-gray-greenish sheen
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
$5.34
$50.00
Item Number
Gemstone
Sheen Obsidian
Origin
California, USA
Weight (ct)
11.24 ct
Dimensions (mm)
26.2 x 11.7 x 6.1
Calibrated Size
No
Type of Cut
MARQUISE Cabochon
Cutter
Miro - EU
Color
Blackish base with slight gold sheen
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
$4.45
$70.00
Item Number
Gemstone
Sheen Obsidian
Origin
California, USA
Weight (ct)
12.68 ct
Dimensions (mm)
26.5 x 12.6 x 6.0
Calibrated Size
No
Type of Cut
Pear Cabochon
Cutter
Miro - EU
Color
Gray-blackish base with slight purplish sheen
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
$5.52
$74.00
Item Number
Gemstone
Sheen Obsidian
Origin
California, USA
Weight (ct)
15.88 ct
Dimensions (mm)
25.8 x 13.0 x 7.0
Calibrated Size
No
Type of Cut
Oval Cabochon
Cutter
Miro - EU
Color
Gray-Blackish Base with Greenish to Bluish Sheen
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
$4.66
$35.00
Item Number
Gemstone
Sheen Obsidian
Origin
California, USA
Weight (ct)
5.90 ct
Dimensions (mm)
15.2 x 10.9 x 5.4
Calibrated Size
No
Type of Cut
Oval Cabochon
Cutter
Miro - EU
Color
Gray-Blackish Base with Greenish to Bluish Sheen
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
$5.93
Item Number
Gemstone
various gemstones
Weight (ct)
49.76 ct
Dimensions (mm)
as photographed / video
Calibrated Size
No
Type of Cut
mix of cuts
Color
as photographed
Treatment
None

* 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
$0.40
$100.00
Item Number
Gemstone
Silver Schiller Sunstone
Origin
Mexico
Weight (ct)
5.73 ct
Dimensions (mm)
10.8 mm Diameter x 8.9
Calibrated Size
Yes
Type of Cut
Double Diamond ROUND Brilliant
Cutter
Faceted by Ravenstein Gem Co.
Color
Light Gold Base with Sleepy Silver 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
$17.45
Item Number
Gemstone
Spessartine Garnet
Origin
Umba River, Tanzania
Weight (ct)
6.81 ct
Dimensions (mm)
9.5 x 7.7 x 5.6 and 9.6 x 7.7 x 5.8
Calibrated Size
No
Type of Cut
OVAL Brilliant
Cutter
Faceted by Ravenstein Gem Co.
Color
Deep and Very Deep Wine RED
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
$26.43
Item Number
Gemstone
Spessartine-Mandarin Garnet
Origin
Tanzania, Africa
Weight (ct)
6.84 ct
Dimensions (mm)
12 x 9.2 x 6.6
Color
Fanta Orange
Shape
Natural Rough
Clarity
Transparent, facet grade, with some typical sugar inside
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
$26.17
$62.00
Item Number
Gemstone
Spessartine-Mandarin Garnet
Origin
Tanzania, Africa
Weight (ct)
0.35 ct
Dimensions (mm)
5.4 x 3.1 x 1.9
Calibrated Size
No
Type of Cut
Radiant Rectangle
Cutter
Faceted by Ravenstein Gem Co.
Color
Intense Fanta Orange
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
$177.14

Discover a gem as unique as you are.

Step into a world of rare beauty

Ravenstein Gem Co. LLC 2026 ยฉ
Made By a Peanut