Sapphire
Item Number: 2022-0906
Sold out
S$1,301.53
7,02 mm x 5,93 mm x 3,95 mm
- 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
- 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
- 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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