Unknown origin

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Showing 33–48 of 333 results

  • Blue Sapphire

    Blue Sapphire

    1,579 ct. | VII/C
    GLA
    €1,200.00
  • Blue Sapphire

    Blue Sapphire

    0,719 ct. | V/D
    GLA
    €500.00
  • Blue Sapphire

    Blue Sapphire

    1,625 ct. | VI/D
    GLA LGL
    €1,300.00
  • Blue Sapphire

    Blue Sapphire

    6,661 ct. | V/C
    GLA CGL
    €24,000.00
  • Blue Sapphire

    Blue Sapphire

    8,635 ct. | VI/E
    GLA
    €13,000.00
  • Blue Sapphire

    Blue Sapphire

    1,373 ct. | VII/D
    GLA LGL
    €800.00
  • Blue Sapphire

    Blue Sapphire

    1,133 ct. | VI/C
    GLA GIC
    €1,300.00
  • Blue Sapphire

    Blue Sapphire

    1,662 ct. | VI/C
    GLA LGL
    €1,200.00
  • Blue Sapphire

    Blue Sapphire

    1,665 ct. | VI/C
    GLA IGLC
    €1,600.00
  • Blue Sapphire

    Blue Sapphire

    5,077 ct. | IV/D
    GLA
    €18,500.00
  • Blue Sapphire

    Blue Sapphire

    6,101 ct. | V/C
    GLA
    €19,000.00
  • Blue Sapphire

    Blue Sapphire

    6,226 ct. | VI/D
    GLA
    €5,800.00
  • Blue Sapphire

    Blue Sapphire

    1,292 ct. | VI/B
    GLA
    €900.00
  • Blue Sapphire

    Blue Sapphire

    1,437 ct. | VI/D
    GLA
    €800.00
  • Blue Sapphire

    Blue Sapphire

    1,503 ct. | VII/C
    GLA
    €1,000.00
  • Blue Sapphire

    Blue Sapphire

    1,530 ct. | VI/C
    GLA
    €900.00

Facts

properties of sapphire

  • Belongs mineralogically to corundum
  • Hardness grade 9
  • Chemical formula: Al2O3
  • Includes all colors except red, red corundum is called "ruby
  • Coloration generally by metal oxides (e.g. blue: titanium oxide)
  • High density of 3.9 - 4.1

origin

worth knowing

  • Oldest known locality: Burma
  • The legendary place of discovery: "Kashmir"
  • Assigned to the planet Saturn
  • Besides blue, pink sapphire is especially sought after: "hot pink".
  • The most recently discovered localities are Madagascar and Ethiopia

investment in sapphire

  • second most suitable of all gemstones for investment
  • less rare than ruby but also strongly increasing in value
  • Stones should have at least 1 ct weight, better from 3 ct.
  • larger stones have higher increase in value
  • Experts reckon with 6% increase in value per year
  • beautiful sparkling sapphires are preferable
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