Ключевые слова: abstract, background, beautiful, black, brown, closeup, collection, colorful, colors, design, fire, gem, gemology, gemstone, geologic, geology, interference, iridescent, isolated, jewel, macro, mineral, natural, nature, noble, nobody, object, opal, opalescence, orange, piece, precious, quartz, raw, red, reflection, rock, rough, sample, semiprecious, small, specimen, stone, texture, transparent, treasure, white, yellow,