Gemstones are an extremely rare type of treasure. You can't find this precious thing anywhere and this meant that, for several years, men dug mines in vain in search of precious stones.
The truth is that most precious stones are in a raw state, going practically unnoticed among ordinary rocks and only people with knowledge of gemology can identify them accurately.
If you have a stone and want to know if it has any commercial value, we recommend the institutions below. Remembering that before any commercial evaluation, the stone needs to go through an identification and, in these cases, we suggest SindiJoias partners.
Minas Gerais: Gemologist Luiz Antônio Gomes da Silveira
Phone: (31) 9-9634-3734
Email: gemlab@gemlab.com.br
São Paulo: Geologist Gemologist Gracia Baião
Phone Number: (11) 3016-5850
Email: laboratorio@gemologiaibgm.com.br
Rio de Janeiro: Gemologist Chang He Ok
Phone Number: (21) 2220-8004
Email: laboratorio@ajorio.com.br
Attention: All calls are made by appointment only.
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