da sapere, Diamanti — August 16, 2018 at 4:20 am

Green diamonds, true or fake?





Green diamonds are very rare and very expensive. But, beware, before buying one, you must check that … ♦ ︎

Colored diamonds inflame Sotheby’s and Christie’s auctions. The most popular colors are yellow, pink and blue. The red diamonds are rarer. But there are also diamonds of another color, even rarer: they are the green ones. Very rare.
Because they are green. The green color is extremely rare in diamonds also because it is also believed to be due to the exposure of the stone to radioactive materials. But do not worry: you can wear them without problems. Green diamonds were near, millennia ago, small amounts of material such as uranium or thorium. But over time, radioactivity has declined, that is, it has ceased. In any case, these radiations penetrated the nearby diamond crystal and changed its color.
Artificial green. Since green diamonds are the result of radiation, why not repeat the process in the laboratory? It is, in fact, what some laboratories do to produce a green color in diamonds. The stones are polished and then hit with a low-energy electron beam. With this same system, yellow diamonds are produced. Another method is to apply a thin layer of silica on the surface of the diamonds. But, beware: the coating is very thin and can be lost with normal wear.
The biggest. The diamond called Green Dresden is the largest in the world (40.72 carats) with this shade. It is kept inside the Dresden castle. The ring you see in these images, however, was sold for $ 1.8 million in the spring of 2014. Its assessment is also due to the fact that the jewel is signed by the legendary designer Jar. The colored limestone diamond mounted on the ring weighs 2.49 carats and is set on platinum, surrounded by colorless diamonds. Also interesting to remember the story of this stone: once belonged to Countess Eliza Branicka Krasińska and was mounted on her engagement ring with the romantic poet Count Zygmunt Krasinski, in Poland. The two married in 1843 and remained together until the count’s death in 1859.




Anello con diamante a taglio princess verde intenso con spalline di diamantati rosa e micro diamanti bianchi
David Morris, anello con diamante a taglio princess verde intenso con spalline di diamantati rosa e micro diamanti bianchi
Anello con un raro diamante verde e diamanti bianchi
Anello in platino con un raro diamante verde e diamanti bianchi
Aurora Green, venduto da Christie's per 16,8 milioni di dollari, record d'asta mondiale
Aurora Green, venduto da Christie’s per 16,8 milioni di dollari, record d’asta mondiale
Un raro diamante verde contornato da bianchi e fancy pink
Un raro diamante verde contornato da bianchi e fancy pink
Diamante verde montato su anello firmato Jar. Venduto per 1,8 milioni di dollari nel 2014
Diamante verde montato su anello firmato Jar. Venduto per 1,8 milioni di dollari nel 2014
 Eliza Branicka Krasińska
Eliza Branicka Krasińska
La scala delle tonalità dei diamanti verdi
La scala delle tonalità dei diamanti verdi
Il Verde di Dresda, custodito nel castello della città
Il Verde di Dresda, custodito nel castello della città

Un raro diamante verde taglio a cuscino
Un raro diamante verde taglio a cuscino







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