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Welcome to our extensive antique jewelry glossary with around 1,500 jewelry related entries.If you feel you are missing an explanation, feel free to let us know and we will add it.
See our: verneuil jewelry.
Auguste Victor Louis Verneuil was a French chemist (1856-1913) He invented a type of blowpipe (chalumeau) with which he was the first to lab produce rubies.
This process is also sometimes referred to as 'flame fusion'. His results were published in 1904. The apparatus is still used today (sometimes in banks of several hundred units) to make synthetic varieties of corundum and other synthetic gemstones.
Other processes were developed but those are used less frequently, e.g. hydrothermal, flux fusion, and Czochralski.