Archivy značek: Tips for buying red sapphires

vlastní rubínové šperky Tipy pro nákup červených safírů

Cutting form: The common cutting forms of rubies are oval faceted gemstones and egg noodles. The best quality rubies are cut into faceted gemstones. Rubies with poor clarity are cut into egg noodles. Only those with poor color and luster become the material for carving. Jasnost: Natural rubies generally have poor clarity and are also [...]