AWESOME LARGE 34,40CT REAL RED RUBY GEMSTONE SCRATCH GLASS EASY! UV LIGHT FLUORESCES RED! HIGH THERMAL CONDUCTIVITY!

AN AWESOME LARGE 34,40CT (6,88G SEE PHOTO PLEASE - MULTIPLY WEIGHT WITH 5 TO GET CARATS) REAL (EITHER NATURAL OR LAB GROWN) RED RUBY GEMSTONE WITH BEAUTIFUL OCTAGON CUT. COMES WITH A BEAUTIFUL PERSPEX PRESENTATION CASE AND VELVET BAG.
 
THIS RUBY PASSED ALL THE TESTS I COULD PERFORM: IT SCRATCHED GLASS EASILY! IT FLUORESCES RED! (PLEASE SEE PHOTO) IT DID NOT LEAVE A RED STREAK WHEN SCRATCHES GLASS. COULD NOT SCRATCH IT WITH A STEEL NAIL. HAS A HIGH THERMAL CONDUCTIVITY! (PLEASE SEE PHOTO)
 
THIS PARTICULAR STONE WAS BOUGHT IN 2011 FROM A SELLER IN SOUTH AFRICA WITH THE ORIGEN OF THE STONE INDICATED AS MADAGASCAR. ITS CLARITY WAS INDICATED AS VVS (EYE CLEAR) MEANING NO INCLUSIONS CAN BE SEEN WITH THE NAKED EYE. IT WAS SOLD AS A REAL RUBY THAT HAS BEEN COLOR TREATED WITH DIFFUSION (a technique whereby certain natural elements are placed on the surface of the gem during the heating and or growth process and the colour is diffused into the gem). IT WAS NOT INDICATED IF IT IS NATURAL OR LAB GROWN.
 
IT IS INDEED A REAL RUBY GEMSTONE (EITHER NATURAL OR LAB GROWN) AS IT PASSED ALL THE TESTS I COULD PERFORM:
PASSED THE SCRATCH TESTS: IT SCRATCHES GLASS EASILY IT IS HARDER THAN GLASS. 
(MOHS HARDNESS GLASS 5.5-6.5 RUBIES 9.0)
PASSED THE ELECTRON UV LIGHT EMISSION TEST: GIVES A STRONG RED FLUORESCENCE UNDER UV LIGHT. (PLEASE SEE PHOTO) NATURAL RUBIES USUALLY SHOW WEAK RED FLUORESCENCE. A SYNTHETIC RUBY USUALLY SHOWS A STRONG RED FLUORESCENCE.
(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.)
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. (PLEASE SEE PHOTO) FOR SAPPHIRES AND RUBIES A LEVEL OF 6 TO 7 IS THE NORM FOR THIS TESTER.
(WITH THIS TESTER GLASS AND QUARTZ MAKES NO MOVEMENT.)
 
SIZE: 19,0mm x 15,1mm x 9,8mm
 
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 THOROUGH RESEARCH AND SOME PRELIMINARY TESTS ON EACH GEMSTONE.
 
RUBIES: Firstly Rubies is one of the four precious gemstones amongst Saphire, Diamond and Emerald. Real rubies rank 9 on the Mohs scale of Hardness. Only a diamond can scratch real rubies. Ruby is a red type of the corundum mineral, along with sapphire. Sapphires have each color of the corundum, except red, which is the color of the ruby.
Corundum is relatively common in nature, and is completely colourless. Chromium causes the red colour in rubies with Burma having the best most intense red rubies in the past.
Corundum once found wide application as an industrial abrasive like sandpaper. Gem corundum is mined almost exclusively from gem gravel deposits. Historically, production has been from Myanmar (Burma), Thailand, India and Sri Lanka (Ceylon). Rubies are known as the King of Gemstones and Myanmar and Thailand honor the corundum ruby as their national stone. 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 widespread apprehension and greatly diminished ruby sales and a resulting fall in prices.
The color and clarity of rubies and sapphires is commonly enhanced by heat treatment and diffusion. Such processes are widely acknowledged within the industry and are probably today the rule rather than the exception. Reliably distinguishing among treated, untreated, natural and synthetic ruby and sapphire depends critically on microscopic examination. 
 
PLEASE ALSO SEE MY OTHER ITEMS LISTED. I HAVE VARIOUS OTHER ORIGINAL OIL PAINTINGS 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.
https://www.bidorbuy.co.za/seller/3685641/ErnRex1545