Natural Blue Sapphire
Natural blue sapphire gemstones are prized for use in high quality jewellery due to the very high hardness and range of stunning blue coloration that is available.
COLOR: There is a large range of colour for Natural Blue Sapphire from pale, greyish blue to deep pure blue, with slight violet secondary. The best range is a light to medium, fine ‘cornflower’ blue which is not too dark.
ORIGIN: Kashmir (India), Burma, Sri Lanka, Cambodia, Thailand, Vietnam
CHEMICAL COMPOSITION: Al2O3 Corundum (Aluminium Oxide)
CUT: Round Cut, Oval cut, Octagon, Pear, Maquise, Square, Baguette
SPECIFIC GRAVITY: 3.95-4.03
REFRACTIVE INDEX: 1.762-1.788
HARDNESS: 9 (Hardest after Diamond)
FORMATION: Found usually in igneous rocks or alluvial deposits.
TREATMENT: The stones were subjected to very high temperatures: highly altered zircon inclusions, internal re-crystallization, internal diffusion around rutile crystals, synthetic overgrowth, and severely damaged crystals of unknown identity. Furthermore, the presence of color zoning that conformed to the external faceted shape of the stone suggested some level of diffusion technology. Beryllium in Be2+ form has a very small ion; it is therefore capable of penetrating deep into the sapphire, via diffusion, during heat treatment.
UNUSUAL PROPERTIES: Sapphire is the birthstone for those who are born in September. Blue Sapphire gemstone is given as a gem for the 5th, 23rd and 45th wedding anniversaries. A real blue sapphire gemstone is one of the hardest known minerals. It can’t be scratched easily. Blue Sapphire is a very cold gem. Blue Sapphire gemstone brings wealth, name and fame. Also gives good stamina, longevity and security in life. Can improve fertility in a barren woman. Best suited for joy, love and happiness. It cures fainting, fits, virility, mental disorder, deafness and baldness.
USAGE: Engagement Rings (highly popular), Rings, Bracelet, Exquisite Pendants or lockets, necklaces or any other jewellery.
WHAT WE SUPPLY: We can supply all kinds of colors, qualities from different origins and in different kinds of cuts. But the ones listed in this section is medium quality Blue Sapphire. For other Blue Sapphire stones, please send us an e-mail to [email protected] with your requirements and we will find that piece for you.