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$395.00
Item Number
Gemstone
Natural Untreated Blue Topaz
Origin
Nigeria, Africa
Weight (ct)
12.09 ct
Dimensions (mm)
11.1/11.2 x 11.0/11.1 x 8.4/8.2
Calibrated Size
No
Type of Cut
Custom Designed TRILLION
Cutter
Faceted by Ravenstein Gem Co.
Color
Very Light Pastel Blue
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
$32.67
Item Number
Gemstone
Natural Tourmaline
Origin
Zambia
Weight (ct)
3.56 ct
Dimensions (mm)
7.5/7.7 x 6.2/6.2 x 4.7/5.3
Calibrated Size
No
Type of Cut
Modified Radiant RECTANGLE
Cutter
faceted by Ravenstein Gem Co., EU
Color
Rich Neon Green with Green-Orange 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
$126.12
Item Number
Gemstone
Tourmaline Rubellite
Origin
Malawi, Africa
Weight (ct)
1.65 ct
Dimensions (mm)
11.8 x 6.6 x 4.0
Calibrated Size
No
Type of Cut
Custom Designed PEAR
Cutter
Faceted by Ravenstein Gem Co.
Color
Hot Pink-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
$175.76
Item Number
Gemstone
Tourmaline Rubellite
Origin
Congo, Africa
Weight (ct)
2.48 ct
Dimensions (mm)
12.0 x 5.6 x 4.4
Calibrated Size
No
Type of Cut
Step Cut OCTAGON
Cutter
Faceted by Ravenstein Gem Co.
Color
Pastel Pink-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
$118.95
$240.00
Item Number
Gemstone
Natural Tourmaline
Origin
Congo, Africa
Weight (ct)
1.12 ct
Dimensions (mm)
7.6 x 7.5 x 4.5
Calibrated Size
No
Type of Cut
Custom Designed TRILLION
Cutter
Faceted by Ravenstein Gem Co.
Color
Pink-Lavender-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
$214.29
$340.00
Item Number
Gemstone
Natural Tourmaline
Origin
Congo, Africa
Weight (ct)
1.70 ct
Dimensions (mm)
9.0 x 6.6 x 5.1
Calibrated Size
No
Type of Cut
Custom Designed MARQUISE
Cutter
Faceted by Ravenstein Gem Co.
Color
Pink-Lavender-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
$200.00
$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
$215.00
Item Number
Gemstone
Natural Untreated Tourmaline
Origin
Malawi, Africa
Weight (ct)
2.71 ct
Dimensions (mm)
15.7 x 4.5 x 3.7
Type of Cut
Elongated Radiant OCTAGON
Cutter
Faceted by Ravenstein Gem Co.
Color
Green-Gold with Cinnamon 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
$79.34

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
JOGS TUCSON GEM SHOW
Where:
Tucson Expo Center, Booth #E324
When:
September 3 - 6, 2026

Find more details here.