Tourmaline

Name: Natural Tourmaline, Congo 2.76 Ct oval
SKU: B-W6147
Availability: InStock

lemon tourmaline 1.64 ct-ravenstein gem co.

natural tourmaline 2.62 ct-ravenstein gem co.

natural tourmaline 3.28 ct-ravenstein gem co.

natural tourmaline 6.0 ct-ravenstein gem co.

Showing 11–20 of 78 results

$169.00

Price Per Carat

$103.05

- Item Number
- W4858
- 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

- Item Number
- W6063
- 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)

$158.00

Price Per Carat

$108.22

- Item Number
- W4728
- Gemstone
- Natural Tourmaline
- Origin
- Zambia
- Weight
- 1.46 ct
- Dimension (mm)
- 8.9 x 6.8 x 4.4
- Calibrated Size
- Yes
- Type of Cut
- Radiant PEAR
- Cutter
- faceted by Ravenstein Gem Co., EU
- Color
- Green-Blue to Orange-Greenish Flashes/Shift
- 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)

$169.00

Price Per Carat

$103.05

- Item Number
- W4770
- Gemstone
- Natural Tourmaline
- Origin
- Mozambique
- Weight
- 1.64 ct
- Dimension (mm)
- 7.5 X 7.5 X 5.0
- Calibrated Size
- No
- Type of Cut
- Custom Designed Radiant SQUARE CUSHION
- Cutter
- faceted by Ravenstein Gem Co., EU
- Color
- Apple-Lime 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)

$102.00

Price Per Carat

$38.93

- Item Number
- W5373
- Gemstone
- Natural Untreated Tourmaline
- Origin
- Malawi, Africa
- Weight
- 2.62 ct
- Dimension (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
- - 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)

$229.00

Price Per Carat

$69.82

- Item Number
- W4874
- Gemstone
- Natural Tourmaline
- Origin
- Congo, Africa
- Weight
- 3.28 ct
- Dimension (mm)
- 11.0 x 8.3 x 6.0
- Calibrated Size
- No
- Type of Cut
- Custom Designed Half Moon
- Cutter
- Faceted by Ravenstein Gem Co.
- Color
- Gold-Champagne
- 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)

$286.00

Price Per Carat

$77.09

- Item Number
- W4873
- Gemstone
- Natural Tourmaline
- Origin
- Congo, Africa
- Weight
- 3.71 ct
- Dimension (mm)
- 12.2 x 7.4 x 5.3
- Calibrated Size
- No
- Type of Cut
- Radiant OCTAGON
- Cutter
- Faceted by Ravenstein Gem Co.
- Color
- Light Pastel Champagne-Gold
- 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)

$412.00

Price Per Carat

$68.67

- Item Number
- W4872
- Gemstone
- Natural Tourmaline
- Origin
- Congo, Africa
- Weight
- 6.0 ct
- Dimension (mm)
- 15.9 x 10.3 x 7.0
- Calibrated Size
- No
- Type of Cut
- Custom Designed PEAR
- Cutter
- Faceted by Ravenstein Gem Co.
- Color
- Light Pastel Gold-Greenish
- 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)

$440.00

Price Per Carat

$241.76

- Item Number
- B-W7435
- Gemstone
- Natural Tourmaline
- Origin
- Congo, Africa
- Weight
- 1.82 ct
- Dimension (mm)
- 8.5 x 6.5 x 5.2
- Calibrated Size
- No
- Type of Cut
- Custom Designed Radiant OVAL
- Cutter
- Faceted by Ravenstein Gem Co.
- Color
- Green with Slight Yellowish Overtone
- 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
- Note
- VIDEO: https://www.youtube.com/shorts/Ot29wwtmgW4

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

$781.00

Price Per Carat

$282.97

- Item Number
- B-W6147
- Gemstone
- Natural Tourmaline
- Origin
- Congo, Africa
- Weight
- 2.76 ct
- Dimension (mm)
- 9.5 x 7.7 x 6.3
- Calibrated Size
- No
- Type of Cut
- Custom Designed Radiant OVAL
- Cutter
- Faceted by Ravenstein Gem Co.
- Color
- Laguna Green with Bluish Overtone
- 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/N0-CGybCl8Q

* 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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