Jewelry Gem by Gem: Masters and Materials
Here, world famous designers share with readers their most highly prized creations in words and pictures, revealing each stone's history, rarity, physical and chemical characteristics, and some of the imitations
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Preface by Paolo Valentini
A Homage to Stone by Patrizia Macera and Paolo Spalla
11 other sections not shown
alexandrite amber amethyst ancient aquamarine atoms Australia aventurine azure beryl biaxial birefringent blue Brazil brilliant cut brown brownish cabochon cut called carats cat's eye chatoyant Chemical Formula chrysoberyl citrine quartz color colorless confused containing coral corundum created cultured pearls cut en cabochon dark deposits display doppiette effect extracted faceted fluorite fractures garnet gemmological gemmologist glass gold Greek green greenish imitations India interesting sidelights Italy jade jewelry jewels lapis lazuli layer lens light liquid inclusions located look Madagascar material mineral mines mixed cut Mohs scale mollusk monorefringent Museum Muzo Myanmar Namibia necklace nucleus obtained olivine opal opaque optical phenomenon pink pleochroism precious produced provenance rays referred Refraction rock Russia sapphire shade similar substances South Africa Specific Gravity specimens spinel Sri Lanka stone surface Synthetics and similar Tanzania topaz tourmaline transparent turquoise United Valenza-Po variety violet weighing yellow zircon