Gemstone Online Shop

Buy untreated, natural colored, investment-grade gemstones in our online store. All our gemstones available for purchase are accompanied by certificates from internationally recognized gemological institutes.

You can easily buy our gems directly online, or submit inquiries regarding specific stones.

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Your choice

The photos presented here by The Natural Gem show each gemstone as it is. The photos are not post-processed, color changed and the gemstones are not optically optimized in their purity.

Showing 337–352 of 639 results

  • Rhodolite

    Rhodolite

    2,483 ct. | III/C
    65003-1
    €500.00
  • Rhodolite-Pear

    Rhodolite-Pear

    5,316 ct. | III/B
    65011-1
    €1,400.00
  • Rhodolite-Pear

    Rhodolite-Pear

    2,773 ct. | V/A/B
    65010-1
    €500.00
  • Rubellite

    Rubellite

    2,508 ct. | II/C
    GLA
    €650.00
  • Rubellite

    Rubellite

    2,518 ct. | II/C
    GLA
    €650.00
  • Rubellite

    Rubellite

    2,568 ct. | III/C
    GLA
    €500.00
  • Rubellite

    Rubellite

    2,668 ct. | III/C
    GLA
    €650.00
  • Rubellite

    Rubellite

    3,301 ct. | II/C
    GLA
    €1,100.00
  • Rubellite

    Rubellite

    3,309 ct. | II/C
    GLA
    €1,300.00
  • Rubellite

    Rubellite

    3,332 ct. | III/D
    GLA
    €1,200.00
  • Rubellite

    Rubellite

    3,423 ct. | III/C
    GLA
    €1,300.00
  • Rubellite

    Rubellite

    3,691 ct. | II/C
    GLA
    €1,250.00
  • Rubellite

    Rubellite

    3,713 ct. | III/C
    GLA
    €1,400.00
  • Rubellite

    Rubellite

    3,932 ct. | II/C
    GLA
    €1,500.00
  • Rubellite

    Rubellite

    1,773 ct. | III/D
    GLA
    €500.00
  • Rubellite

    Rubellite

    2,116 ct. | III/C
    GLA
    €500.00

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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