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Showing 1–10 of 1553 results

$670.00

Price Per Carat

$27.22

- Item Number
- W7258
- Gemstone
- Natural Tourmaline Achroite
- Origin
- Mozambique
- Weight
- 24.61 ct
- Dimension (mm)
- 23 x 11 x 8.5
- Shape
- Natural Rough
- Color
- Colorless
- Clarity
- Clean, facet grade
- 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/giJ5oQtZ6TI, VIDEO: https://www.youtube.com/watch?v=fqaVKNbOpqU

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

$455.00

Price Per Carat

$1,467.74

- Item Number
- W7575
- Gemstone
- Alexandrite Effect Color Change Garnet
- Origin
- Africa
- Weight
- 0.31 ct
- Dimension (mm)
- 4.3 mm Diameter x 2.6
- Calibrated Size
- Yes
- Type of Cut
- Custom Designed ROUND
- Cutter
- Faceted by Ravenstein Gem Co.
- Color
- as photographed
- 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/ihbCPUARmvU

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

$698.00

Price Per Carat

$1,517.39

- Item Number
- W7572
- Gemstone
- Alexandrite Effect Color Change Garnet
- Origin
- Africa
- Weight
- 0.46 ct
- Dimension (mm)
- 5.0 x 4.9 x 3.1
- Calibrated Size
- Yes
- Type of Cut
- Custom Designed TRILLION
- Cutter
- Faceted by Ravenstein Gem Co.
- Color
- as photographed
- 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/BEYdWSspsDM

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

$260.00

Price Per Carat

$1,238.10

- Item Number
- W6925
- Gemstone
- Alexandrite Effect Color Change Garnet
- Origin
- Africa
- Weight
- 0.21 ct
- Dimension (mm)
- 3.7 x 2.7 x 2.6
- Calibrated Size
- No
- Type of Cut
- Custom Designed Octagon
- Cutter
- Faceted by Ravenstein Gem Co.
- Color
- as photographed
- 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/9sQ-vTahdJg

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

$390.00

Price Per Carat

$1,392.86

- Item Number
- W7574
- Gemstone
- Alexandrite Effect Color Change Garnet
- Origin
- Africa
- Weight
- 0.28 ct
- Dimension (mm)
- 3.4 x 3.4 x 2.6
- Calibrated Size
- No
- Type of Cut
- Custom Designed SQUARE
- Cutter
- Faceted by Ravenstein Gem Co.
- Color
- as photographed
- 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/HNKDJnaoShA

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

$445.00

Price Per Carat

$1,435.48

- Item Number
- W6939
- Gemstone
- Alexandrite Effect Color Change Garnet
- Origin
- Africa
- Weight
- 0.31 ct
- Dimension (mm)
- 3.5 x 3.4 x 2.7
- Calibrated Size
- No
- Type of Cut
- Custom Designed SQUARE
- Cutter
- Faceted by Ravenstein Gem Co.
- Color
- as photographed
- 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/cIhKeYmy5Yk

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

$640.00

Price Per Carat

$1,828.57

- Item Number
- W7577
- Gemstone
- Alexandrite Effect Color Change Garnet
- Origin
- Africa
- Weight
- 0.35 ct
- Dimension (mm)
- 4.6 x 3.9 x 2.4
- Calibrated Size
- No
- Type of Cut
- Custom Designed CUSHION
- Cutter
- Faceted by Ravenstein Gem Co.
- Color
- as photographed
- 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/wFgtsFrzM68

* 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

$1,222.22

- Item Number
- W6976
- Gemstone
- Alexandrite Effect Color Change Garnet
- Origin
- Africa
- Weight
- 0.36 ct
- Dimension (mm)
- 3.8 mm Diameter x 3.1
- Calibrated Size
- Yes
- Type of Cut
- Modified ROUND
- Cutter
- Faceted by Ravenstein Gem Co.
- Color
- as photographed
- 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/jBkxwpAz0Iw

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

$489.00

Price Per Carat

$1,321.62

- Item Number
- W7576
- Gemstone
- Alexandrite Effect Color Change Garnet
- Origin
- Africa
- Weight
- 0.37 ct
- Dimension (mm)
- 4.3 mm Diameter x 3.0
- Calibrated Size
- Yes
- Type of Cut
- Custom Designed ROUND
- Cutter
- Faceted by Ravenstein Gem Co.
- Color
- as photographed
- 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/k6CIbMZr7n8

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

$700.00

Price Per Carat

$1,794.87

- Item Number
- W7573
- Gemstone
- Alexandrite Effect Color Change Garnet
- Origin
- Africa
- Weight
- 0.39 ct
- Dimension (mm)
- 4.4 x 3.4 x 3.0
- Calibrated Size
- No
- Type of Cut
- Custom Designed CUSHION
- Cutter
- Faceted by Ravenstein Gem Co.
- Color
- as photographed
- 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/2jdWQncZ6Us

* 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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We're Looking Forward to Seeing You at the Tucson Gem Show!

22nd Street Show, Showcase Tent K11

Jan 30 - Feb 16, 2025

If you'd like to meet, please make an appointment here or email katerina@ravensteingemco.com