MATCHED BLUE SAPPHIRE 0.35CT EARRING PAIR WITH LOVELY ROUND CUT THERMAL TESTED HIGH!

THIS IS A BEAUTIFUL MATCHED BLUE SAPPHIRE EARRING PAIR! A LOVELY 0.35CT (0.07G PLEASE SEE PHOTO MULTIPLY WEIGHT BY 5 TO GET CARATS) BLUE SAPPHIRE GEMSTONE EARRING PAIR WITH A BEAUTIFUL ROUND CUT. COMES IN A SMALL PERSPEX PRESENTATION BOX.
 
NOTE THIS WEEK I HAVE 26 GEMSTONES ON AUCTION. IT WILL BE THE LAST BATCH FOR A WHILE. TAKE THIS CHANCE TO BUY THE GEMSTONES YOU LIKE. VARIOUS SAPPHIRES, SOME GARNETS AND SPINELS, TWO TANZANITES, A BLUE DIAMOND THAT PINGS THE MIZAR DIAMOND TESTER, A ONE OF A KIND BOULDER OPAL FROM AUSTRALIA, A NATURAL AMBER CUT GEMSTONE AND MORE. ALL MY AUCTIONS END AT 22H30 SO IT IS ADVISABLE TO PUT IN AN AUTOMATIC BID (HIGHEST PRICE YOU ARE WILLING TO PAY) EARLY.
 
THIS PARTICULAR STONE WAS BOUGHT IN 2011 FROM A SELLER IN CAPE TOWN WITH THE ORIGEN OF THE STONE NOT INDICATED. IT HAS A SI (INCLUSIONS EYE VISIBLE) CLARITY WHICH MEANS IT HAS INCLUSIONS AS SEEN WITH THE NAKED EYE WHICH IT APPEARS TO BE. IT WAS ALSO SOLD AS A NATURAL SAPPHIRE GEMSTONE PAIR. NO HEAT TREATMENT WAS INDICATED.
 
TESTS PERFORMED:
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 6 TO 7 IS THE NORM FOR THIS TESTER.
(WITH THIS TESTER GLASS 0,002, TANZANITE 0 005, AND TITANITE MAKES NO MOVEMENT, TOURMALINE 0.012 AQUAMARINE 0.013 AND EMERALD 0.013 AND GARNETS 0.012 AND KUNSITE 0.013 LIE INBETWEEN AND CAN GIVE A LEVEL OF 3 OR 4. QUARTZ 0,020 GIVES A THERMAL OF 4, SPINELS 0,028 ALSO LIE IN BETWEEN AND CAN GIVE A THERMAL OF 4 TO 5; TOPAZ 0,04 GIVES A THERMAL OF 5 TO 6. RUBIES AND SAPPHIRE 0,08 GIVES A THERMAL OF 6 TO 7.)
 
SIZE: 3.1mm
 
MY PERSONAL CONCLUSION REGARDING THIS GEMSTONE PAIR:
BEAUTIFUL GEMSTONE PAIR WITH A STRONG DARK ROYAL BLUE COLOUR.
 THE EASIEST WAY TO TELL BETWEEN A NATURAL AND LAB-CREATED SAPPHIRE IS THE FLAWLESSNESS. OUR STONES HOWEVER HAS A STATED SI CLARITY AND HAS INCLUSIONS THAT CAN BE SEEN WITH THE NAKED EYE. I COULD NOT VERIFY THIS MYSELF THOUGH BUT MY EYES ARE NOT THE BEST THESE DAYS.
MY CONCLUSION:  IT IS PROPABLY A SYNTHETIC SAPPHIRE GEMSTONE BUT HAS THE POSSIBILITY OF BEING ALL NATURAL
 
DISCLAIMER: I AM NO GEMSTONE EXPERT AND NONE OF THE PRELIMERY TESTS I COULD PERFORM (SCRATCH TEST; UV TEST; THERMAL TEST) CAN CONFIRM THIS GEMSTONES NATURE AND PROPERTIES. THIS 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. ADVANCED INTRUMENTS ARE NEEDED TO DISTINGUISH ONE GEMSTONE FROM ANOTHER AND TO CONFIRM IF IT IS NATURAL OR LAB MADE.
 
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.
Synthetic sapphire has been produced commercially since 1902. Lab-created gems are essentially the same as their natural counterpart, with the same visual qualities and hardness. 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 ALSO COMMONLY ENHANCED BY HEAT TREATMENT. SUCH PROCESSES ARE PROBABLY TODAY THE RULE RATHER THAN THE EXCEPTION.  THE EASIEST WAY TO TELL BETWEEN A NATURAL AND LAB-CREATED SAPPHIRE IS THE FLAWLESSNESS. Natural sapphires will have small inclusions or flaws throughout the stone if you look closely. However, lab-created gems are clean and flawless.
 
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.
https://www.bidorbuy.co.za/seller/3685641/ErnRex1545