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$785.00

Natural Untreated Green Blue Tourmaline, Congo 3.29 Ct cushion quantity

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Price Per Carat

$238.60

• • Item Number
  • B-W5976
• • Gemstone
  • Natural Tourmaline
• • Origin
  • Congo, Africa
• • Weight
  • 3.29 ct
• • Dimension (mm)
  • 10.7 x 7.8 x 5.9
• • Calibrated Size
  • No
• • Type of Cut
  • Custom Designed CUSHION
• • Cutter
  • Faceted by Ravenstein Gem Co.
• • Color
  • Laguna Green Blue
• • Clarity
  • • F
    • VVS1
    • VVS2
    • VS1
    • VS2
    • SI1
    • SI2
    • P1
    • P2
• • Treatment
  • None
• • Sheen/Schiller/Silk intensity
  • • None
    • Very Low
    • Low
    • Low-Medium
    • Medium
    • Medium-Strong
    • Strong
    • Very Strong
• • Tone / Saturation
  • • Colorless
    • Very Very Light
    • Very Light
    • Light
    • Light-Medium
    • Medium
    • Medium Deep
    • Deep
    • Very Deep
    • Near Blackish
• • Investment potential
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Rarity
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Note
  • Video on a hand: https://www.youtube.com/shorts/esQJPU5ISqY

* 1.0 ct = 0.2 gr ** Images were taken under open daylight (6,500K), for color change gems additionally under iridescent light source (2700K)

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$106.00

Natural Untreated Green Tourmaline 1.46 Ct quantity

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Price Per Carat

$72.60

• • Item Number
  • W4737
• • Gemstone
  • Natural Tourmaline
• • Origin
  • Zambia
• • Weight
  • 1.46 ct
• • Dimension (mm)
  • 8.6 x 6.2 x 4.9
• • Calibrated Size
  • No
• • Type of Cut
  • Modified Radiant Cushion
• • Cutter
  • faceted by Ravenstein Gem Co., EU
• • Color
  • Pastel Green-Teal
• • Clarity
  • • F
    • VVS1
    • VVS2
    • VS1
    • VS2
    • SI1
    • SI2
    • P1
    • P2
• • Treatment
  • None
• • Sheen/Schiller/Silk intensity
  • • None
    • Very Low
    • Low
    • Low-Medium
    • Medium
    • Medium-Strong
    • Strong
    • Very Strong
• • Tone / Saturation
  • • Colorless
    • Very Very Light
    • Very Light
    • Light
    • Light-Medium
    • Medium
    • Medium Deep
    • Deep
    • Very Deep
    • Near Blackish
• • Current market value
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Investment potential
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Rarity
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1

* 1.0 ct = 0.2 gr ** Images were taken under open daylight (6,500K), for color change gems additionally under iridescent light source (2700K)

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$515.00

Natural Untreated Green Tourmaline-Congo 1.95 Ct quantity

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Price Per Carat

$264.10

• • Item Number
  • B-W6138
• • Gemstone
  • Natural Untreated Tourmaline
• • Origin
  • Congo, Africa
• • Weight
  • 1.95 ct
• • Dimension (mm)
  • 9.5 x 8.7 x 5.4
• • Calibrated Size
  • No
• • Type of Cut
  • Custom Designed Fan
• • Cutter
  • Faceted by Ravenstein Gem Co.
• • Color
  • Rich Peacock-Grass Green
• • Clarity
  • • F
    • VVS1
    • VVS2
    • VS1
    • VS2
    • SI1
    • SI2
    • P1
    • P2
• • Treatment
  • None
• • Sheen/Schiller/Silk intensity
  • • None
    • Very Low
    • Low
    • Low-Medium
    • Medium
    • Medium-Strong
    • Strong
    • Very Strong
• • Tone / Saturation
  • • Colorless
    • Very Very Light
    • Very Light
    • Light
    • Light-Medium
    • Medium
    • Medium Deep
    • Deep
    • Very Deep
    • Near Blackish
• • Investment potential
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Rarity
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Note
  • VIDEO : https://www.youtube.com/shorts/zwmZH3M1_-A

* 1.0 ct = 0.2 gr ** Images were taken under open daylight (6,500K), for color change gems additionally under iridescent light source (2700K)

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$529.00

Natural Untreated Green Tourmaline, Congo 2.74 Ct octagon quantity

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Price Per Carat

$193.07

• • Item Number
  • B-W6149
• • Gemstone
  • Natural Untreated Tourmaline
• • Origin
  • Congo, Africa
• • Weight
  • 2.74 ct
• • Dimension (mm)
  • 7.4 x 7.0 x 5.7
• • Calibrated Size
  • No
• • Type of Cut
  • Step Cut OCTAGON
• • Cutter
  • Faceted by Ravenstein Gem Co.
• • Color
  • Peacock Green-Blue with Grass Green and Orangey Flashes
• • Clarity
  • • F
    • VVS1
    • VVS2
    • VS1
    • VS2
    • SI1
    • SI2
    • P1
    • P2
• • Sheen/Schiller/Silk intensity
  • • None
    • Very Low
    • Low
    • Low-Medium
    • Medium
    • Medium-Strong
    • Strong
    • Very Strong
• • Tone / Saturation
  • • Colorless
    • Very Very Light
    • Very Light
    • Light
    • Light-Medium
    • Medium
    • Medium Deep
    • Deep
    • Very Deep
    • Near Blackish
• • Investment potential
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Rarity
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Note
  • VIDEO: https://www.youtube.com/shorts/gcl0XY-Se20

* 1.0 ct = 0.2 gr ** Images were taken under open daylight (6,500K), for color change gems additionally under iridescent light source (2700K)

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$597.00

Natural Untreated Light Blue Sapphire, Rwanda 1.11 Ct cushion quantity

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Price Per Carat

$537.84

• • Item Number
  • B-W5928
• • Gemstone
  • Natural Unheated Blue Sapphire
• • Origin
  • Rwanda, Africa
• • Weight
  • 1.11 ct
• • Dimension (mm)
  • 7.0 x 5.5 x 3.7
• • Calibrated Size
  • No
• • Type of Cut
  • Custom Designed CUSHION
• • Cutter
  • Faceted by Ravenstein Gem Co.
• • Color
  • Light Blue with Yellowish Overtone
• • Clarity
  • • F
    • VVS1
    • VVS2
    • VS1
    • VS2
    • SI1
    • SI2
    • P1
    • P2
• • Treatment
  • None
• • Tone / Saturation
  • • Colorless
    • Very Very Light
    • Very Light
    • Light
    • Light-Medium
    • Medium
    • Medium Deep
    • Deep
    • Very Deep
    • Near Blackish
• • Investment potential
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Rarity
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Note
  • Video: https://www.youtube.com/shorts/JWXOX-pMFBE

* 1.0 ct = 0.2 gr ** Images were taken under open daylight (6,500K), for color change gems additionally under iridescent light source (2700K)

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$347.00

Natural Untreated Parti Sapphire 1.13 Ct quantity

Add to cart

Price Per Carat

$307.08

• • Item Number
  • W5253
• • Gemstone
  • Natural Unheated Parti Sapphire
• • Origin
  • Kenya
• • Weight
  • 1.13 ct
• • Dimension (mm)
  • 6.8 x 5.2 x 3.6
• • Calibrated Size
  • No
• • Type of Cut
  • Half Moon Brilliant
• • Cutter
  • Faceted by Ravenstein Gem Co.
• • Color
  • Green-Yellow-Blue
• • Clarity
  • • F
    • VVS1
    • VVS2
    • VS1
    • VS2
    • SI1
    • SI2
    • P1
    • P2
• • Treatment
  • None
• • Sheen/Schiller/Silk intensity
  • • None
    • Very Low
    • Low
    • Low-Medium
    • Medium
    • Medium-Strong
    • Strong
    • Very Strong
• • Tone / Saturation
  • • Colorless
    • Very Very Light
    • Very Light
    • Light
    • Light-Medium
    • Medium
    • Medium Deep
    • Deep
    • Very Deep
    • Near Blackish
• • Current market value
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Investment potential
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Rarity
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Note
  • VIDEO OUTSIDE: https://www.youtube.com/shorts/z5AIe-_SLKA

* 1.0 ct = 0.2 gr ** Images were taken under open daylight (6,500K), for color change gems additionally under iridescent light source (2700K)

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$189.00

Natural Untreated Parti Sapphire 1.17 Ct quantity

Add to cart

Price Per Carat

$161.54

• • Item Number
  • W4766
• • Gemstone
  • Natural Unheated Parti Sapphire
• • Origin
  • Africa
• • Weight
  • 1.17 ct
• • Dimension (mm)
  • 6.8 x 5.0 x 3.9
• • Calibrated Size
  • Yes
• • Type of Cut
  • CUSHION Brilliant
• • Cutter
  • faceted by Ravenstein Gem Co., EU
• • Color
  • Green-Yellow
• • Clarity
  • • F
    • VVS1
    • VVS2
    • VS1
    • VS2
    • SI1
    • SI2
    • P1
    • P2
• • Treatment
  • None
• • Sheen/Schiller/Silk intensity
  • • None
    • Very Low
    • Low
    • Low-Medium
    • Medium
    • Medium-Strong
    • Strong
    • Very Strong
• • Tone / Saturation
  • • Colorless
    • Very Very Light
    • Very Light
    • Light
    • Light-Medium
    • Medium
    • Medium Deep
    • Deep
    • Very Deep
    • Near Blackish
• • Current market value
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Investment potential
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Rarity
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Note
  • VIDEO Outside: https://www.youtube.com/shorts/fusLuSED7m4

* 1.0 ct = 0.2 gr ** Images were taken under open daylight (6,500K), for color change gems additionally under iridescent light source (2700K)

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$365.00

Natural Untreated Parti Sapphire 1.48 Ct quantity

Add to cart

Price Per Carat

$246.62

• • Item Number
  • W5256
• • Gemstone
  • Natural Unheated Parti Sapphire
• • Origin
  • Kenya
• • Weight
  • 1.48 ct
• • Dimension (mm)
  • 9.7 x 6.0 x 4.2
• • Calibrated Size
  • No
• • Type of Cut
  • Custom Designed PEAR
• • Cutter
  • Faceted by Ravenstein Gem Co.
• • Color
  • Blue-Green-Teal
• • Clarity
  • • F
    • VVS1
    • VVS2
    • VS1
    • VS2
    • SI1
    • SI2
    • P1
    • P2
• • Treatment
  • None
• • Sheen/Schiller/Silk intensity
  • • None
    • Very Low
    • Low
    • Low-Medium
    • Medium
    • Medium-Strong
    • Strong
    • Very Strong
• • Tone / Saturation
  • • Colorless
    • Very Very Light
    • Very Light
    • Light
    • Light-Medium
    • Medium
    • Medium Deep
    • Deep
    • Very Deep
    • Near Blackish
• • Current market value
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Investment potential
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Rarity
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Note
  • VIDEO outside: https://www.youtube.com/shorts/eAVUA9dzOfQ

* 1.0 ct = 0.2 gr ** Images were taken under open daylight (6,500K), for color change gems additionally under iridescent light source (2700K)

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$423.00

Natural Untreated Parti Sapphire 1.54 Ct quantity

Add to cart

Price Per Carat

$274.68

• • Item Number
  • W5254
• • Gemstone
  • Natural Untreated Parti Sapphire
• • Origin
  • Kenya
• • Weight
  • 1.54 ct
• • Dimension (mm)
  • 10.3 x 6.6 x 4.3
• • Calibrated Size
  • No
• • Type of Cut
  • Custom Designed PENDELOQUE
• • Cutter
  • Faceted by Ravenstein Gem Co.
• • Color
  • Deep Blue-Green-Teal and Touch of Schiller
• • Clarity
  • • F
    • VVS1
    • VVS2
    • VS1
    • VS2
    • SI1
    • SI2
    • P1
    • P2
• • Treatment
  • None
• • Sheen/Schiller/Silk intensity
  • • None
    • Very Low
    • Low
    • Low-Medium
    • Medium
    • Medium-Strong
    • Strong
    • Very Strong
• • Tone / Saturation
  • • Colorless
    • Very Very Light
    • Very Light
    • Light
    • Light-Medium
    • Medium
    • Medium Deep
    • Deep
    • Very Deep
    • Near Blackish
• • Current market value
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Investment potential
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Rarity
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1

* 1.0 ct = 0.2 gr ** Images were taken under open daylight (6,500K), for color change gems additionally under iridescent light source (2700K)

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$90.00

Natural Untreated Parti Sapphire rough 10.18 Ct TW quantity

Add to cart

Price Per Carat

$8.84

• • Item Number
  • W4803
• • Gemstone
  • Natural Untreated Parti Sapphire
• • Origin
  • Kenya
• • Weight
  • 10.18 ct
• • Shape
  • Natural Rough
• • Color
  • Beautiful Mixture of Blue-Green-Teal-Yellow
• • Clarity
  • Clean / mostly clean / slightly included, facet or semi facet grade
• • Treatment
  • None
• • Tone / Saturation
  • • Colorless
    • Very Very Light
    • Very Light
    • Light
    • Light-Medium
    • Medium
    • Medium Deep
    • Deep
    • Very Deep
    • Near Blackish
• • Current market value
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Investment potential
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1
• • Rarity
  • • 10
    • 9
    • 8
    • 7
    • 6
    • 5
    • 4
    • 3
    • 2
    • 1

* 1.0 ct = 0.2 gr ** Images were taken under open daylight (6,500K), for color change gems additionally under iridescent light source (2700K)