Guilloché

Guilloché is a technique of extremely fine mechanical engraving on metal, most often on silver, which creates a complex pattern of interwoven lines. The design is made using a special machine — a guilloché engine, which ensures perfectly even geometric ornaments.

Under varying light, such a surface seems to come alive: lines reflect light at different angles, creating a soft "glow." This effect was especially valued by craftsmen of the late 19th — early 20th century, particularly in jewelry houses such as Fabergé. Silver cigarette cases and boxes were often decorated with guilloché and then covered with transparent enamel, which gave objects depth and a noble shine.

Interesting fact: the secrets of guilloché were once kept secret — each master had his own unique line patterns.