Scaif is a polishing wheel infused with a mixture of olive oil and diamond dust used in the diamond cutting industry. Diamond cutting is the art skill and increasingly science of changing a diamond from a rough stone into a Faceted gem
It was invented in 1456 by Lodewyk van Berken. Lodewyk van Berken was a mid- to late-15th century Flemish jeweller and diamond cutter renowned in the industry for inventing the Scaif. With the scaif, it became possible to polish all the facets of the diamond symmetrically at angles that reflected the light best. This invention revolutionized the diamond cutting industry and correspondingly, the popularity of diamonds.