not detectable

Your gemstone search

Showing 33–48 of 100 results

  • 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

    8,295 ct. | II/D
    47142
    €4,800.00
  • Sapphire

    Sapphire

    1,152 ct. | V/C
    GLA
    €1,400.00
  • Spessartin

    Spessartin

    18,028 ct. | VI/A
    GLA
    €4,800.00
  • Spessartite

    Spessartite

    5,051 ct. | V/A
    GLA
    €1,500.00
  • Spessartite

    Spessartite

    5,514 ct. | IV/B
    GLA
    €1,900.00
  • Spessartite

    Spessartite

    5,622 ct. | IV/C
    GLA
    €1,700.00
  • Spessartite

    Spessartite

    6,173 ct. | V/A
    GLA
    €1,900.00
  • Spessartite

    Spessartite

    6,996 ct. | V/A
    GLA
    €2,100.00
  • Spinel

    Spinel

    1,524 ct. | II/C
    64839-1
    €7,400.00

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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