Ключевые слова: accessories, agate, amethyst, bead, brooch, carat, chandelier, crystal, diamond, economy, emerald, energy, faceted, gem, gems, gemstone, glitter, jade, jewel, jewellery, jewelry, material, mineral, necklace, object, opal, ornament, pill, precious, precious stone, quartz, raw material, sapphire, semiprecious, technology, topaz, treasure, turquoise,