Tourmaline

dichroic tourmaline 2.06 ct-ravenstein gem co.tourmaline carving frog 18.35 gMalkhan Tourmaline-Quartz Fish carving 279 gr-Ravenstein gem co.multicolor tourmaline 2.56 ctnatural tourmaline 1.87 ct-ravenstein gem co.tourmaline 1.45 ctlemon tourmaline 1.64 ct-ravenstein gem co.malkhan tourmaline 2.08 ct

Showing 1–10 of 69 results

    $235.00

    Price Per Carat
    $114.08
      • Gemstone
      • Dichroic Yellow-Green Tourmaline
      • Origin
      • Zambia
      • Weight
      • 2.06 ct
      • Dimension (mm)
      • 9.2 x 8.5 x 5.2
      • Calibrated Size
      • No
      • Type of Cut
      • Modified Trillion Brilliant
      • Cutter
      • Faceted by Ravenstein Gem Co.
      • Color
      • Yellow-Green with Light Gold Flashes
      • 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
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        • 1
      • Investment potential
        • 10
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        • 2
        • 1
      • Rarity
        • 10
        • 9
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        • 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)

    $303.00

    Price Per Carat
    $56.42
      • Gemstone
      • Elbaite Tourmaline
      • Origin
      • Congo, Africa
      • Weight
      • 5.37 ct
      • Dimension (mm)
      • 11.5 x 9.6 x 7.3
      • Calibrated Size
      • No
      • Type of Cut
      • CUSHION Brilliant
      • Cutter
      • Miro – EU
      • Color
      • Very Deep Chrome 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
      • 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)

    $7,800.00

    Price Per Carat
    $297.60
      • Gemstone
      • Green Tourmaline
      • Origin
      • Kenya
      • Weight
      • 26.21 ct
      • Dimension (mm)
      • 24.06 x 12.93 x 12.26 mm
      • Calibrated Size
      • No
      • Type of Cut
      • Modified OCTAGON “Shockwave”
      • Cutter
      • Loren Brown – USA. Commission sale on behalf Loren Brown. This gemstone will be shipped by the artist Loren Brown directly from his place in Texas.
      • Color
      • Blue-Green and Yellowish-Green
      • Clarity
        • F
        • VVS1
        • VVS2
        • VS1
        • VS2
        • SI1
        • SI2
        • P1
        • P2
      • Clarity
      • SI1- slightly included, can see with naked eye
      • 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
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        • 5
        • 4
        • 3
        • 2
        • 1
      • Note
      • Commission sale on behalf Loren Brown. Ravenstein Gem Co. doesn't carry any responsibility when it comes to final price, quality, exchanges etc.

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

    $3,200.00

    Price Per Carat
    $34.88
      • Gemstone
      • Malkhan Tourmaline "Frog" carving
      • Origin
      • Malkhan, Russia
      • Weight
      • 91.75 ct
      • Dimension (mm)
      • 38 x 24 x 18
      • Shape
      • Frog Carving
      • Color
      • Bicolor Yellow-Pink
      • Clarity
      • Top gemmy, transparent
      • 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
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        • 1
      • Note
      • Carved by Maxim Morozov – an artist from Irkutsk, Russia.

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

    $2,200.00

    Price Per Carat
    $1.59
      • Gemstone
      • Malkhan Tourmaline-Quartz
      • Origin
      • Russia
      • Weight
      • 1385 ct
      • Dimension (mm)
      • 120 x 79 mm
      • Cutter
      • Carved by Maxim Morozov – an artist from Irkutsk, Russia.
      • Shape
      • Malkhan Tourmaline-Quartz Fish carving
      • Treatment
      • None

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

    $1,160.00

    Price Per Carat
    $453.13
      • Gemstone
      • Natural Untreated Multicolor Tourmaline
      • Origin
      • Zambia
      • Weight
      • 2.56 ct
      • Dimension (mm)
      • 9.1 x 8.7 x 6.1
      • Calibrated Size
      • No
      • Type of Cut
      • Modified OVAL
      • Cutter
      • Faceted by Ravenstein Gem Co.
      • Color
      • Multicolor
      • 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/e4TATriGrGg

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

    $270.00

    Price Per Carat
    $144.39
      • Gemstone
      • Natural Tourmaline
      • Origin
      • Namibia
      • Weight
      • 1.87 ct
      • Dimension (mm)
      • 11.2 x 5.0 x 4.0
      • Calibrated Size
      • No
      • Type of Cut
      • Radiant BAGUETTE
      • Cutter
      • Faceted by Ravenstein Gem Co.
      • Color
      • Intense Chrome 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
      • 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/jpQB-vaq3B4

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

    $177.00

    Price Per Carat
    $122.07
      • Gemstone
      • Natural Untreated Tourmaline
      • Origin
      • Zambia
      • Weight
      • 1.45 ct
      • Dimension (mm)
      • 8.6 x 6.1 x 5.0
      • Calibrated Size
      • No
      • Type of Cut
      • Custom Designed Radiant CUSHION
      • Cutter
      • Faceted by Ravenstein Gem Co.
      • Color
      • Green-Blue to Neon 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
      • 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)

    $169.00

    Price Per Carat
    $103.05
      • Gemstone
      • Lemon Tourmaline
      • Origin
      • Zambia
      • Weight
      • 1.64 ct
      • Dimension (mm)
      • 8.6 x 8.1 x 4.4
      • Calibrated Size
      • No
      • Type of Cut
      • Modified Radiant Shield
      • Cutter
      • Faceted by Ravenstein Gem Co.
      • Color
      • Yellow-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
      • 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)

    $304.00

    Price Per Carat
    $146.15
      • Gemstone
      • Malkhan Tourmaline
      • Origin
      • Malkhan, Siberia, Russia
      • Weight
      • 2.08 ct
      • Dimension (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
        • 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/iRHX7yZT9ao

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