Ключевые слова: alphabet, background, blocks, blue, bricks, collection, color, colored, corundum, crystal, cutter, cutting, dark, decoration, facet, fancy, feminine, gem, gemcutting, gemstone, green, indication, isolated, jewel, jewelry, lapidary, letters, message, mined, mineral, natural, oxide, pile, precious, raw, rock, rough, row, sapphire, semiprecious, square, standing, stone, uncut, unpolished, valuable, word, wording, written, yellow,