Antique oval

Your gemstone search

Showing 49–64 of 80 results

  • Sapphire

    Sapphire

    9,541 ct. | IV/D
    GLA
    €58,000.00
  • Sapphire

    Sapphire

    11,029 ct. | V/E
    GLA
    €38,000.00
  • Sapphire

    Sapphire

    10,541 ct. | V/D
    GLA
    €63,000.00
  • Spinel

    Spinel

    2,519 ct. | VI/B
    GLA
    €1,200.00
  • Spinel

    Spinel

    2,182 ct. | VI/B
    GLA
    €1,100.00
  • Spinel

    Spinel

    1,190 ct. | V/C
    GLA
    €600.00
  • Spinel

    Spinel

    1,192 ct. | V/C
    GLA
    €550.00
  • Spinel

    Spinel

    2,316 ct. | VI/C
    GLA
    €600.00
  • Spinel

    Spinel

    2,453 ct. | V/C
    GLA
    €500.00
  • Spinel

    Spinel

    4,600 ct. | VI/C
    GLA
    €1,700.00
  • Spinel

    Spinel

    3,532 ct. | VI/C
    GLA
    €1,700.00
  • Spinel

    Spinel

    2,507 ct. | V/C
    GLA
    €1,300.00
  • Spinel

    Spinel

    1,385 ct. | VI/C
    GLA
    €500.00
  • Spinel

    Spinel

    1,594 ct. | VI/B
    GLA
    €600.00
  • Spinel

    Spinel

    1,314 ct. | VI/C
    GLA
    €500.00
  • Spinel

    Spinel

    1,117 ct. | V/C
    GLA
    €500.00

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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