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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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 81–96 of 639 results

  • Blue Sapphire

    Blue Sapphire

    2,030 ct. | III/C
    61426-1
    €6,200.00
  • Blue Sapphire

    Blue Sapphire

    1,612 ct. | IV/C
    63764-1
    €4,200.00
  • Blue Sapphire

    Blue Sapphire

    2,025 ct. | III/B
    61428-1
    €6,000.00
  • Blue Sapphire

    Blue Sapphire

    1,078 ct. | V/D
    64715
    €1,100.00
  • Blue Sapphire

    Blue Sapphire

    0,859 ct. | V/E
    64716
    €600.00
  • Blue Sapphire

    Blue Sapphire

    1,073 ct. | V/C
    64717
    €1,700.00
  • Blue Sapphire

    Blue Sapphire

    1,227 ct. | VI/D
    64719
    €800.00
  • Blue Sapphire

    Blue Sapphire

    1,026 ct. | V/C
    64720
    €1,500.00
  • Bluesaphhire

    Bluesaphhire

    1,612 ct. | V/C
    GLA
    €2,400.00
  • Bluesapphire

    Bluesapphire

    11,973 ct. | III/C
    GLA
    €Price on request
  • Bluesapphire

    Bluesapphire

    8,072 ct. | IV/C
    GLA
    €63,500.00
  • Bluesapphire

    Bluesapphire

    1,569 ct. | IV/C
    GLA
    €3,400.00
  • Bluesapphire

    Bluesapphire

    1,358 ct. | VI/C
    GLA
    €1,300.00
  • Chrome Tourmaline

    Chrome Tourmaline

    1,846 ct. | IV/D
    GLA
    €500.00
  • Chrome Tourmaline

    Chrome Tourmaline

    1,744 ct. | IV/C
    GLA
    €600.00
  • Chrome Tourmaline

    Chrome Tourmaline

    1,537 ct. | IV/C
    GLA
    €600.00

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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