VIVID DARK PURPLE VERY LARGE 43.54CT AMETHYST GEMSTONE WITH AN AMAZING TRILLION CUT (30 TO 50 FACETS!) WITH SUPPLIED GISA CERTIFICATE

A BEAUTIFUL LARGE 43.54 CARAT (8,7G PLEASE SEE PHOTO WITH 200MG = 1 CARAT) VIVID DARK PURPLE AMETHYST GEMSTONE WITH A BEAUTIFUL TRILLION CUT. (A trillion cut is a triangular shape comprised of three equal sides and 31 or 50 facets) COMES WITH A BEAUTIFUL PERSPEX PRESENTATION CASE AND VELVET BAG.
 
THIS PARTICULAR STONE WAS BOUGHT FROM A SELLER IN CHANTABURI THAILAND IN 2011 WITH THE COUNTRY OF ORIGEN NOT INDICATED BUT MOST PROPABLY BRAZIL. 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 AN UNHEATED NATURAL GEMSTONE.
 
IT IS A REAL AMETHYST GEMSTONE AS IT PASSED ALL THE TESTS I COULD PERFORM:
PASSED THE SCRATCH TEST: IT SCRATCHES GLASS BUT NOT EASILY IT IS HARDER THAN GLASS.
(MOHS HARDNESS GLASS 5.5-6.5 AMETHYST QUARTZ 7.0-7.5)
PASSED THE ELECTRON UV LIGHT EMISSION TEST: NO REACTION AS IT SHOULD BE FOR AMETHYST. GLASS AND ALL QUARTZ VARIETIES DOES NOT SHOW A UV AFFECT.
(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 A LITTLE FROM STANDARD LEVEL 3 TO LEVEL 4. FOR QUARTZ A LEVEL OF 4 IS THE NORM FOR THIS TESTER.
(WITH THIS TESTER GLASS MAKES NO MOVEMENT.)
 
THIS AMETHYST GEMSTONE HAS A SUPPLIED GISA (GEMMOLOGY INSTITUTE OF SOUTHERN AFRICA) CERTIFICATE. THIS COMPANY DOES NOT HAVE A GOOD REPUTATION ONLINE. THEY COULD NOT BE CONTACTED BY CONTACT DETAILS SUPPLIED ON THE BACK. THERE IS NO WEBSITE TO CHECK PAST REPORTS THAT I COULD FIND. I DO NOT KNOW IF STILL IN EXISTENCE. TO THEIR CREDIT THOUGH I HAVE SEEN CERTIFICATES BY THEM THAT I COULD INDEPENDENTLY VERIFY THAT THEY HAVE CORRECTLY STATED THE GEMSTONES QUALITIES.
 
SIZE: 24mm x 24mm x 14mm
 
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 ON EACH GEMSTONE.
 
AMETHYST:
In antiquity, the most valuable gems were known as the cardinal gems. They included Diamond, Emerald, Ruby, Sapphire and Amethyst. Amethyst no longer appears on this list. What happened? The answer is that extensive amethyst deposits were discovered in South America in the early 19th century, and Amethyst was no longer regarded as a rare gem.
Historically, fine Amethyst came from the Ural Mountains in Russia and in Germany. Both of these deposits are now exhausted. Very large deposits were discovered in southern Brazil in the early 19th century. In the 1950's high quality amethyst was found in Zambia. 
Most fine Amethyst is very clean and completely untreated and can be found in large sizes. It's quite a durable gem and is suitable for all kinds of jewelry.
Color is the most important factor for amethyst. The rich purple hue of Amethyst retains its allure, and gem collectors still seek out particularly fine specimens. Fine deep purple Amethyst is still fairly rare, though not especially expensive.
 
PLEASE ALSO SEE MY OTHER ITEMS LISTED. I HAVE SOME OTHER GEMSTONES ALSO ON AUCTION THIS WEEK.
 
REGARDING PAYMENT: PLEASE TRY TO PAY FOR YOUR ORDER WITHIN ONE WEEK OF PURCHASE.
IF YOU THINK YOU CANNOT PAY WITHIN ONE WEEK BUT STILL WANT TO BID ON THE ITEM PLEASE ARRANGE BY MESSAGE BEFOREHAND TO ARRANGE FOR ANOTHER PAYMENT ARRANGEMENT. THE FASTER YOU PAY THE FASTER I CAN SEND FOR YOU.
 
REGARDING SHIPPING: BUYERS ARE WELCOME TO DO BATCH ORDERS FOR SMALLER TO MEDIUM SIZED ITEMS. PLEASE SEE SHIPPING OPTIONS FOR DETAILS AND SMALL ADDITIONAL COST PER EXTRA ITEM.