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 529–544 of 639 results

  • Spinel

    Spinel

    1,302 ct. | V/B
    GLA
    €650.00
  • Spinel

    Spinel

    1,439 ct. | VI/C
    GLA
    €500.00
  • Spinel

    Spinel

    1,249 ct. | V/C
    GLA
    €500.00
  • Spinel

    Spinel

    2,120 ct. | VII/C
    GLA
    €600.00
  • Spinel

    Spinel

    1,988 ct. | VI/C
    GLA
    €780.00
  • Spinel

    Spinel

    1,739 ct. | VI/B
    GLA
    €690.00
  • Spinel

    Spinel

    1,562 ct. | VI/B
    GLA
    €620.00
  • Spinel

    Spinel

    1,640 ct. | VII/C
    GLA
    €500.00
  • Spinel

    Spinel

    1,621 ct. | VI/A
    GLA
    €720.00
  • Spinel

    Spinel

    1,536 ct. | VI/C
    GLA
    €500.00
  • Spinel

    Spinel

    1,401 ct. | VI/C
    GLA
    €500.00
  • Spinel

    Spinel

    1,172 ct. | V/B
    GLA
    €500.00
  • Spinel

    Spinel

    1,152 ct. | V/C
    GLA
    €500.00
  • Spinel

    Spinel

    1,662 ct. | V/C
    GLA
    €700.00
  • Spinel

    Spinel

    1,355 ct. | VI/C
    GLA
    €500.00
  • Spinel

    Spinel

    2,202 ct. | V/C
    GLA
    €900.00

Facts

properties of spinel

  • Own mineralogical group
  • Hardness grade 8
  • Chemical formula: MgAl2O4
  • Includes almost all colors
  • Colored by different metal oxides
  • High density of the mineral: 3.6 - 4.1

origin

  • Burma
  • Vietnam
  • Tadschikistan
  • Sri Lanka
  • Afghanistan

worth knowing

  • Oldest known locality: Burma
  • Has been confused with ruby for a long time
  • Some of the most important "rubies" in the world are therefore spinels
  • Spinel can be distinguished from ruby by its crystal system and refraction of light
  • Gives courage and confidence
  • Most important place of discovery is still Burma

investment in spinel

  • Outsider in the investment field, which will quickly increase in value
  • Rare, rapidly increasing in value
  • Stones should have at least 2 ct weight
  • Larger, luminous stones have higher increase in value
  • Experts expect 8 - 10% increase in value per year
  • Beautiful sparkling spinels are to be preferred
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