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$288.00
Item Number
Gemstone
Natural Untreated Parti Sapphire
Origin
Kenya
Weight (ct)
0.75 ct
Dimensions (mm)
6.6 x 4.2 x 3.6
Calibrated Size
No
Type of Cut
Custom Designed MARQUISE
Cutter
Faceted by Ravenstein Gem Co.
Color
Blue-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
$384.00
$300.00
Item Number
Gemstone
Malkhan Tourmaline
Origin
Malkhan, Siberia, Russia
Weight (ct)
2.08 ct
Dimensions (mm)
11.6 x 6.0 x 4.4
Calibrated Size
No
Type of Cut
Custom Designed Rhomboid
Cutter
Faceted by Ravenstein Gem Co.
Color
Bright Vivid Pink
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
$144.23
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
$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
$125.00
Item Number
Gemstone
Malkhan Tourmaline Rubellite
Origin
Malkhan, Russia
Weight (ct)
0.64 ct
Dimensions (mm)
5.1 x 4.3 x 3.6
Calibrated Size
No
Type of Cut
Step Cut OCTAGON
Cutter
Faceted by Ravenstein Gem Co.
Color
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
$195.31
$150.00
Item Number
Gemstone
Tourmaline Rubellite
Origin
Zambia
Weight (ct)
1.22 ct
Dimensions (mm)
8.4 x 5.8 x 4.1
Type of Cut
Modified OVAL
Cutter
Faceted by Ravenstein Gem Co.
Color
Rich Vivid Pink
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
$122.95
$230.00
Item Number
Gemstone
Natural Untreated Tourmaline
Origin
Zambia
Weight (ct)
1.58 ct
Dimensions (mm)
8.4 x 6.8 x 4.8
Type of Cut
Custom Designed OVAL
Cutter
Faceted by Ravenstein Gem Co.
Color
Rose Pink-Purple-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
$145.57
$250.00
Item Number
Gemstone
Natural Untreated Tourmaline
Origin
Zambia
Weight (ct)
1.75 ct
Dimensions (mm)
8.2 x 6.9 x 5.3
Type of Cut
Custom Designed OVAL
Cutter
Faceted by Ravenstein Gem Co.
Color
Pink with Peach 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
$142.86
Item Number
Gemstone
Tourmaline Verdelite
Origin
Malawi, Africa
Weight (ct)
2.45 ct
Dimensions (mm)
15.3 x 4.7 x 3.8
Calibrated Size
No
Type of Cut
Step Cut BAGUETTE
Cutter
Faceted by Ravenstein Gem Co.
Color
Leaf Green-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
$53.88
Item Number
Gemstone
Tourmaline Verdelite
Origin
Zambia
Weight (ct)
1.30 ct
Dimensions (mm)
7.8 x 6.7 x 4.2
Type of Cut
Custom Designed CUSHION
Cutter
Faceted by Ravenstein Gem Co.
Color
Deep Lime 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
$80.77

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.