Blue Sapphire

Item Number: SAP-BLU-2020-204

20.400,00

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Details

Price:
20.400,00
Weight:
5,544 ct.
Color:
blau
Shape:
Oval
Dimensions:
10,71 x 8,23 x 6,52
Purity:
very small inclusions (C)
Origin:
Unknown origin
Treatment:
Untreated
Certificate:
GLA50725 CGL
Item Number:
SAP-BLU-2020-204

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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