Crystal either comes  as rock crystal, from the mountains, or is man made. Rock crystal does not lend itself to cutting and polishing. Many attempts have been unsuccessful. No brilliance, poor refraction and generally too many inclusions.

Man made crystal is essentially high quality glass with noble ingredients to ensure once cut, faceted and polished the brilliance, optical purity and light refraction has the appearance of natural stones. In the past, lead oxide was added to soften the glass and increase the spectral effect. Today, the use of heavy metals is unwelcome, most manufactures have replaced lead oxide.

Precision cut, polished crystal stones visually resemble diamonds but their cost enables jewellery and accessory manufacturers to use them freely. Cut crystal stones originated in the Czech Republic, at first cut by hand and later by mechanical means.

The first mass application dates back to late 1800, when during the “Belle Epoque” they where lavishly used by Parisian designers and in the Revues such as the Moulin Rouge.