SPARKLING 5,80CT PINK ORANGE (PADPARDSCHA) SAPPHIRE GEMSTONE NATURAL GEMSTONE HEAT TREATED FLUORESCES RED!

A SPARKLING 5,80CT PINK ORANGE (PADPARDSCHA) SAPPHIRE GEMSTONE WITH A BEAUTIFUL EMERALD CUT. COMES WITH A BEAUTIFUL PERSPEX PRESENTATION CASE AND VELVET BAG.

PADPARDSCHA sapphires are quite rare.The ideal colour is a mix of pink and orange colours. Padparadscha sapphires are mainly found in Sri Lanka, as well as Madagascar and Tanzania.
Madagascar is now producing a major percentage of the stones available on the market   

THIS PARTICULAR STONE WAS BOUGHT IN 2011 FROM A SELLER IN CHANTABURI THAILAND WITH THE ORIGEN OF THE STONE INDICATED AS AFRICA. IT HAS A VVS (EYE CLEAR) CLARITY WHICH MEANS IT IS FREE OF INCLUSIONS AS SEEN WITH THE NAKED EYE WHICH IT APPEARS TO BE. IT WAS ALSO SOLD AS A NATURAL BUT HEAT TREATED PADPARADSCHA SAPPHIRE GEMSTONE.

I THINK IT IS INDEED A NATURAL PINK ORANGE SAPPHIRE GEMSTONE AS IT PASSED OR GIVE AN UNCLEAR ON ALL THE TESTS I COULD PERFORM:

PASSED THE SCRATCH TEST: IT SCRATCHES GLASS IT IS HARDER THAN GLASS.
(MOHS HARDNESS GLASS 5.5-6.5 SAPPHIRE 9.0)
PASSED THE ELECTRON UV LIGHT EMISSION TEST: GIVES A STRONG RED FLUORESCENCE UNDER UV LIGHT. NATURAL ORANGE SAPPHIRES USUALLY SHOW NONE TO A STRONG ORANGE TO RED FLUORESCENCE. A SYNTHETIC ORANGE SAPPHIRE USUALLY SHOWS A WEAK ORANGE TO RED FLUORESCENCE. The typical ultraviolet fluorescence for padparadscha sapphires ranges from orange to red in UV due to high chromium content.  
(THE UV LIGHT HIT THE ELECTRONS. THEY JUMP AND FALL BACK. THEY RADIATE LIGHT OF A CERTAIN WAVELENGTH WHEN THEY DO WHICH IS SPECIFIC TO EACH ELEMENT IN THE MINERAL. THIS IS CALLED FLUORESCENCE. ONLY 10% OF GEMSTONES EXHIBIT A FLUORESCENCE AFFECT LIKE RUBIES, SAPPHIRE, TOPAZ, OPALS AND DIAMONDS. GLASS AND ALL NATURAL QUARTZ VARIETIES DOES NOT SHOW A UV AFFECT.)
UNCLEAR THERMAL CONDUCTIVITY TEST: TESTED THE THERMAL CONDUCTIVITY WITH A MIZAR PRESTIGE SERIES 2 DIAMOND TESTER. IT MOVED UP THE LADDER FROM STANDARD LEVEL 3 TO LEVEL 5. FOR SAPPHIRES AND RUBIES A LEVEL OF 6 TO 7 IS THE NORM FOR THIS TESTER.
(WITH THIS TESTER GLASS MAKES NO MOVEMENT AND QUARTZ MOVE ONLY LITTLE UP.)
 
SIZE: 8,4mm x 11,2mm x 5,6mm
 
DISCLAIMER: I AM NO GEMSTONE EXPERT. THESE GEMSTONES BELONGED TO A FAMILY MEMBER THAT HAS PASSED AWAY. HE COLLECTED GEMSTONES DURING THE EARLY TWENTY FIRST CENTURY MANY WERE BOUGHT ON EBAY AND OTHERS BY TRAVELLING TO OTHER COUNTRIES. I HAVE TRIED TO VERIFY AS FAR AS POSSIBLE ANY STATEMENTS OR CLAIMS BY DOING SOME RESEARCH AND PRELIMARY TESTS ON EACH GEMSTONE.
 
SAPPHIRE:
Sapphire is one of the four precious gemstones amongst Rubies, Diamond and Emerald. Sapphire rank 9 on the Mohs scale of Hardness. Sapphires and rubies are basicly the mineral Corundum and Aluminium Oxide and has the chemical formula Al2O3. Sapphire is a all the colours of the corundum mineral except red, which is the color of the ruby. Corundum is relatively common in nature, and is completely colourless. Small amounts of metallic elements such as Cr, Fe and Ti can substitute for aluminum in the structure, which gives rise to many colour variations.  
Corundum once found wide application as an industrial abrasive like sandpaper. Gem corundum is mined almost exclusively from gem gravel deposits. Historically, the most famous and prolific production has been from Myanmar (Burma), Thailand, India and Sri Lanka (Ceylon). More recent important sources include East African countries of Madagascar, Tanzania and Mozambique.
Corundum was the first gem mineral to be synthesized in the lab. Synthetic rubies and sapphires are presently manufactured in enormous quantities for both industrial and gem application. The color and clarity of rubies and sapphires is commonly enhanced by heat treatment. Such processes are widely acknowledged within the industry and today is the rule rather than the exception. Reliably distinguishing among treated, untreated, natural and synthetic ruby and sapphire depends critically on microscopic examination.
Only green emeralds and red rubies are harder to find in nature than sapphires. The rarest sapphire is a padparadscha that is a mixture of pink and orange. Large natural sapphire stones are very hard to come by. Consequently, its per-carat price rise a lot as the size of the gem increases.
 
PLEASE ALSO SEE MY OTHER ITEMS LISTED. I HAVE SOME OTHER GEMSTONES ALSO ON AUCTION THIS WEEK.