RARE ORANGE 5,20CT SAPPHIRE GEMSTONE FROM SONGEA TANZANIA WITH LOVELY OVAL CUT - ONE OF 3 DIFFERENT COLOURED SAPPHIRES ON AUCTION THIS WEEK

I HAVE THREE DIFFERENT COLOURED SAPPHIRE GEMSTONES ON AUCTION THIS WEEK: A BLUE SAPPHIRE; THIS ORANGE SAPPHIRE AND A GREEN SAPPHIRE. PLEASE HAVE A LOOK!
 
THIS GEMSTONE IS A LOVELY 5,20CT (1,04G PLEASE SEE PHOTO MULTIPLY WEIGHT BY 5 TO GET CARATS) ORANGE SAPPHIRE GEMSTONE WITH A BEAUTIFUL OVAL CUT. THIS PARTICULAR STONE WAS BOUGHT IN 2011 FROM A SELLER IN CHANTHABURI THAILAND WITH THE ORIGEN OF THE STONE INDICATED AS SONGEA TANZANIA. 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 ORANGE SAPPHIRE GEMSTONE.
 
I THINK IT MIGHT BE A REAL NATURAL SAPPHIRE AS THE ELECTRON UV LIGHT EMISSION TEST AND THERMAL CONDUCTIVITY TEST INDICATE. IT SHOWS ASTRONG ORANGE RED UV FLUORESCENCE AND A HIGH LEVEL 6 THERMAL CONDUCTIVITY CHARACTERISTIC OF NATURAL SAPPHIRE. THE ONLY THING THAT MIGHT INDICATE ITS LABCREATED IT ITS FLAWLESSNESS (BEING INCLUSION FREE).
 
TESTS PERFORMED:
PASSED THE SCRATCH TEST: IT DID SCRATCH A GLASS WINDOW PANE WHICH WOULD INDICATE IT IS HARDER THAN GLASS. (MOHS HARDNESS GLASS 5.5-6.5SAPPHIRE 9.0)
PASSED THE ELECTRON UV LIGHT EMISSION TEST: NO TO SLIGHTBLUE UV REACTION.
NATURAL ORANGE SAPPHIRES: A STRONG ORANGE-RED IN THE PRESENCE OF LW. SYNTHETIC ORANGE SAPPHIRES: VERY WEAK, ORANGE TO RED IN SW.
(THE UV LIGHT HIT THE ELECTRONS. THEY JUMP AND FALL BACK.THEY RADIATE LIGHT OF A CERTAIN WAVELENGTH WHEN THEY DO WHICH IS SPECIFIC TOEACH ELEMENT IN THE MINERAL. THIS IS CALLED FLUORESCENCE. ONLY 10% OF GEMSTONESEXHIBIT A FLUORESCENCE AFFECT LIKE RUBIES, SAPPHIRE, TOPAZ, OPALS AND DIAMONDS.GLASS AND ALL NATURAL QUARTZ VARIETIES DOES NOT SHOW A UV AFFECT.)
PASSED THE 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 6. FOR SAPPHIRES AND RUBIES A LEVEL OF 6TO 7 IS THE NORM FOR THIS TESTER.
(WITH THIS TESTER GLASS MAKES NO MOVEMENT AND QUARTZ GOESUP TO LEVEL 4.)
 
SIZE: 8,5mm x 10,5mm x 6,6mm
 
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 BYTRAVELLING TO OTHER COUNTRIES. I HAVE TRIED TO VERIFY AS FAR AS POSSIBLE ANYSTATEMENTS 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. Only a diamond can scratch sapphire.
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 in sapphire.
Historically production of sapphire 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 by a process known today as flame fusion and flux growth. Synthetic rubies and sapphires are presently manufactured in enormous quantities for both industrial and gem application. This caused a resulting fall in prices for both natural and synthetic gemstones.The color and clarity of rubies and sapphires is also commonly enhanced by heat treatment. Such processes are probably today the rule rather than the exception. Sapphires are rare gems, especially when compared to diamonds. Of the precious gems 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. This unique color looks like the sunset.

PLEASE ALSO SEE MY OTHER ITEMS LISTED. I HAVE VARIOUS OTHER GEMSTONES ALSO ON AUCTION THIS WEEK. COPY THE URL UNDERNEATH AND PASTE INTO GOOGLE AND IT WILL TAKE YOU DIRECTLY TO ALL MY LISTINGS THIS WEEK. NOTE ALL MY AUCTIONS END AT 22H30 SO IT IS ADVISABLE TO PUT IN AN AUTOMATIC BID (HIGHEST PRICE YOU ARE WILLING TO PAY) EARLY.
https://www.bidorbuy.co.za/seller/3685641/ErnRex1545