# Verneuil process

> English word · Proper noun

## Definitions
1. The first commercially successful method of manufacturing synthetic gemstones, involving the melting of a finely powdered substance using an oxyhydrogen flame and crystallising the melted droplets into a boule.

## Etymology
Developed in 1902 by the French chemist Auguste Verneuil.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/verneuil-process