Shop

1375 available Gems

$247.00
Item Number
Gemstone
Natural Blue Sapphire
Origin
Rwanda, Africa
Weight (ct)
2.66 ct
Dimensions (mm)
10.0 x 5.7 x 3.8
Type of Cut
Sugarloaf Cabochon
Cutter
cut by Ravenstein Gem Co.
Color
Midnight Blue
Clarity
Translucent
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
$92.86
$252.00
Item Number
Gemstone
Natural Blue Sapphire
Origin
Rwanda, Africa
Weight (ct)
2.72 ct
Dimensions (mm)
9.8 x 7.8 x 3.3
Type of Cut
Pear Cabochon
Cutter
cut by Ravenstein Gem Co.
Color
Blue
Clarity
Transparent with natural flaws
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
$92.65
$470.00
Item Number
Gemstone
Natural Blue Sapphire
Origin
Rwanda, Africa
Weight (ct)
3.05 ct
Dimensions (mm)
8.7 x 6.7 x 4.5
Type of Cut
Oval Cabochon
Cutter
cut by Ravenstein Gem Co.
Color
Blue
Clarity
Mostly transparent with some natural flaws
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
$154.10
$190.00
Item Number
Gemstone
Natural Blue Sapphire
Origin
Rwanda, Africa
Weight (ct)
3.30 ct
Dimensions (mm)
10.9 x 7.6 x 3.8
Type of Cut
Pear Cabochon
Cutter
cut by Ravenstein Gem Co.
Color
Deep Blue
Clarity
Translucent
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
$57.58
$378.00
Item Number
Gemstone
Natural Blue Sapphire
Origin
Rwanda, Africa
Weight (ct)
5.04 ct
Dimensions (mm)
10.1 x 8.1 x 5.1
Type of Cut
Sugarloaf Cabochon
Cutter
cut by Ravenstein Gem Co.
Color
Deep Royal Blue
Clarity
Translucent
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
$75.00
Item Number
Gemstone
Natural Blue Sapphire
Origin
Rwanda, Africa
Weight (ct)
5.75 ct
Dimensions (mm)
11.3 x 8.3 x 5.8
Type of Cut
Sugarloaf Cabochon
Cutter
cut by Ravenstein Gem Co.
Color
Blue
Clarity
Transparent with natural flaws
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
$121.74
Item Number
Gemstone
Natural Blue Sapphire
Origin
Rwanda, Africa
Weight (ct)
8.57 ct
Dimensions (mm)
14.3 x 8.3 x 5.6
Type of Cut
Sugarloaf Cabochon
Cutter
cut by Ravenstein Gem Co.
Color
Deep Blue
Clarity
Semi transparent to translucent with natural flaws
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
$121.35
$255.00
Item Number
Gemstone
Natural Cat's Eye Blue Sapphire
Origin
Rwanda, Africa
Weight (ct)
3.29 ct
Dimensions (mm)
8.7 x 7.0 x 4.6
Calibrated Size
No
Type of Cut
Sugarloaf Cabochon showing cat's eye effect
Cutter
cut by Ravenstein Gem Co.
Color
Deep Royal Blue
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
$77.51
Item Number
Gemstone
Danburite
Origin
La Aurora mine, Charcas, San Luis Potosí, Mexico
Weight (ct)
1.09 ct
Dimensions (mm)
4.8/4.7 x 4.7/4.5 x 3.4/3.5
Calibrated Size
No
Type of Cut
Custom Designed Radiant SQUARE
Cutter
Faceted by Ravenstein Gem Co.
Color
Near colorless / slight pink tint
Clarity
Eye Clean
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
$26.61
$620.00
Item Number
Gemstone
Danburite
Origin
La Aurora mine, Charcas, San Luis Potosí, Mexico
Weight (ct)
11.28 ct
Dimensions (mm)
20.8 x 12.4 x 7.0
Calibrated Size
No
Type of Cut
Artistic Carving by Jack Hoque-USA
Color
Pink Tint
Clarity Scale
FVVS1VVS2VS1VS2SI1SI2P1P2
Treatment
None
Tone / Saturation
Notes

Amazing scintillation and fire due to perfect cutting and very high refractive index and light dispersion.

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
$54.96

Discover a gem as unique as you are.

Step into a world of rare beauty

Ravenstein Gem Co. LLC 2026 ©
Made By a Peanut