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Your gemstone search

Showing 1–16 of 100 results

  • Alexandrite

    Alexandrite

    1,051 ct. | IV/C
    63669-1
    €9,700.00
  • Aquamarine

    Aquamarine

    5,574 ct. | IV/B
    GLA GII
    €2,200.00
  • Aquamarine

    Aquamarine

    4,747 ct. | V/B
    GLA
    €1,700.00
  • Aquamarine

    Aquamarine

    7,044 ct. | V/C
    GLA
    €1,800.00
  • Aquamarine

    Aquamarine

    3,903 ct. | V/A
    GLA
    €1,100.00
  • Aquamarine

    Aquamarine

    6,070 ct. | V/B
    GLA
    €2,400.00
  • Aquamarine

    Aquamarine

    8,480 ct. | V/B
    GLA
    €3,400.00
  • Aquamarine

    Aquamarine

    4,418 ct. | V/A
    GLA
    €1,500.00
  • Bastnäsite

    Bastnäsite

    2,829 ct. | IV/D
    GLA
    €500.00
  • Bastnäsite

    Bastnäsite

    3,034 ct. | IV/D
    GLA
    €600.00
  • Bastnäsite

    Bastnäsite

    3,275 ct. | III/D
    GLA
    €500.00
  • Bastnäsite

    Bastnäsite

    3,468 ct. | III/C
    GLA
    €800.00
  • Bastnäsite

    Bastnäsite

    3,878 ct. | IV/D
    GLA
    €1,000.00
  • Bastnäsite

    Bastnäsite

    2,3 ct. | IV/C
    GLA
    €500.00
  • Bastnäsite

    Bastnäsite

    2,78 ct. | IV/C
    GLA
    €600.00
  • Indicolite

    Indicolite

    3,077 ct. | IV/C
    GLA
    €800.00

Facts

properties of tourmaline

  • Separate mineralogical group with many varieties
  • Hardness grade 7 - 7,5
  • Chemical formula: XY3Z6(T6O18)(BO3)3V3W(V, W, X, Y, Z stand for different possible elements)
  • Includes all colors
  • Colored by different metal oxides
  • Specific gravity 2.8 - 3.3 g/cm3

origin

  • Brasilia
  • Madagascar
  • Pakistan
  • Various locations in Europe
  • Mozambique
  • Namibia
  • Nigeria

worth knowing

  • Oldest known locality in modern trade: Brazil
  • Occurs in all colors
  • Forms beautiful crystals with very good crystal endings
  • Various esoteric and healing meanings
  • Also large crystals and large cut stones possible
  • The locality Pakistan was discovered only around 2010

investment in tourmaline

  • Still undervalued compared to other gemstones.
  • Exception: the Paraiba tourmaline, which can be more expensive than sapphire
  • Stones should be at least 5 ct in weight, except for Paraiba
  • Larger stones have higher appreciation
  • Experts calculate 6 - 8% increase in value per year
  • Beautiful, pure stones with clear colors are preferable
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