Shop

1888 available Gems

$2,156.00
Item Number
Gemstone
Natural Untreated Tourmaline
Origin
Congo, Africa
Weight (ct)
8.95 ct
Dimensions (mm)
13.8 x 9.1 x 8.9
Calibrated Size
No
Type of Cut
Custom Designed Octagon
Cutter
faceted by Masterpiece Collective - Nick Brevig (USA)
Color
Pink-Copper Red with Gold Center
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
$240.89
$85.00
Item Number
Gemstone
Natural Untreated Tourmaline
Origin
Malawi, Africa
Weight (ct)
0.82 ct
Dimensions (mm)
5.9 x 4.3 x 3.7
Calibrated Size
Yes
Type of Cut
Stepped OCTAGON
Cutter
Faceted by Ravenstein Gem Co.
Color
Orange-Gold-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
$103.66
Item Number
Gemstone
Natural Untreated Tourmaline
Origin
Malawi, Africa
Weight (ct)
1.01 ct
Dimensions (mm)
6.5 x 6.4 x 4.6
Calibrated Size
No
Type of Cut
Modified TRILLION
Cutter
Faceted by Ravenstein Gem Co.
Color
Orange-Honey with Green-Gold Flashes & 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
$94.06
$125.00
Item Number
Gemstone
Natural Untreated Tourmaline
Origin
Malawi, Africa
Weight (ct)
1.14 ct
Dimensions (mm)
5.7 x 5.1 x 4.4
Type of Cut
Step Cut OCTAGON
Cutter
Faceted by Ravenstein Gem Co.
Color
Orange-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
$109.65
Item Number
Gemstone
Natural Untreated Tourmaline
Origin
Malawi, Africa
Weight (ct)
1.66 ct
Dimensions (mm)
7.2 x 5.3 x 5.0
Type of Cut
Step Cut CUSHION
Cutter
Faceted by Ravenstein Gem Co.
Color
Yellow-Cinnamon with Lavender Flashes - extremely unique color
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
$295.18
$307.00
Item Number
Gemstone
Natural Untreated Tourmaline
Origin
Malawi, Africa
Weight (ct)
3.74 ct
Dimensions (mm)
9.7 x 6.5 x 6.0
Calibrated Size
No
Type of Cut
Stepped OCTAGON
Cutter
Faceted by Ravenstein Gem Co.
Color
Green-Yellowish
Clarity Scale
FVVS1VVS2VS1VS2SI1SI2P1P2
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
$82.09
$115.00
Item Number
Gemstone
Natural Untreated Yellow Imperial Topaz
Origin
W. Africa
Weight (ct)
0.92 ct
Dimensions (mm)
6.6 x 4.4. x 3.8
Calibrated Size
No
Type of Cut
Custom Designed Octagon
Cutter
Faceted by Ravenstein Gem Co.
Color
Yellow 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
$125.00
$240.00
Item Number
Gemstone
Natural Untreated Parti Sapphire
Origin
Kenya
Weight (ct)
0.60 ct
Dimensions (mm)
4.6 x 4.5 x 3.5
Calibrated Size
No
Type of Cut
Custom Designed Octagon
Cutter
Faceted by Ravenstein Gem Co.
Color
Yellow-Green
Clarity Scale
FVVS1VVS2VS1VS2SI1SI2P1P2
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
$400.00
$250.00
Item Number
Gemstone
Natural Untreated Yellow Imperial Topaz
Origin
W. Africa
Weight (ct)
1.66 ct
Dimensions (mm)
7.6 x 6.4 x 4.8
Calibrated Size
No
Type of Cut
Custom Designed OVAL
Cutter
Faceted by Ravenstein Gem Co.
Color
Pastel Gold 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
$150.60
$385.00
Item Number
Gemstone
Natural Untreated Yellow Imperial Topaz
Origin
W. Africa
Weight (ct)
2.47 ct
Dimensions (mm)
7.8 x 7.7 x 5.8
Calibrated Size
No
Type of Cut
Custom Designed Square CUSHION
Cutter
Faceted by Ravenstein Gem Co.
Color
Yellow-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
$155.87

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