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Vintage-style pendant with natural noble chocolate opals. Chocolate opals are one of the varieties of dark (black) opals, whose matrix has an opaque palette of brown shades from "bitter chocolate" to "coffee with milk". There are only a few deposits of chocolate opal in the world, so this type of noble opals is a rare phenomenon on the Russian market. Unfortunately, 99% of the dark (black) opals that flood modern Asian markets are inexpensive light (milk) opals that have been refined by smoking, candling or tinting, after which the stone matrix acquires a dark (black) opaque color. If you are interested in the topic of ennobling noble opals, you can read the article on this topic:
www.livemaster.ru/topic/971049-vybor-blagorodnogo-opala-podvodnye-kamni-i-nyuansy
There are some minor inaccuracies in the article, but the essence of the problem is conveyed correctly.
The work was used:
Natural noble chocolate opals:
cabochon oval, size - 12 x 10 mm, weight - 2,26 crt.
opalescence - green, red, yellow, dark pink.
cabochon pear, size - 12 x 8 mm, weight - 1,74 crt.
opalescence - green, red, yellow blue.
Both stones are carved from one nugget, i.e. a complete set, the stones are bright, shimmer without additional lighting sources, have not been subjected to ennobling. The upper oval cabochon is carved with a part of the rock, which, given the situation with dark opals, is rather a confirmation of its naturalness, and not a defect.
Vintage accessories of the USA (brass without lead and nickel in the composition, oxidation)
The size of the pendant:
height with pendant stone - 45 mm,
max width - 35 mm.
The length of the chain is at the request of the buyer, but not more than 55 cm, taking into account the central part and the lock.
Администрация Ярмарки Мастеров не гарантирует, что представленное изделие является ювелирным или другим изделием из драгоценных металлов и/или драгоценных камней. Пожалуйста, проконсультируйтесь с продавцом