Cut Gemstone
Gemstones are one of nature's rarest products. The three attributes that a gemstone must possess are rarity, beauty and color. Even in prehistoric times, people were attracted to pretty pebbles, and when combined with translucency or even transparency with color, they were highly prized. See pictures 
Gemstone Faceted
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Gemstone Cabochon
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Gemstone Rough
Its color is a gemstone's most important and individual characteristic. The color should be rich - not so pale as to give the stone an anemic appearance, nor so deep as to make it look dark or even black, particularly in artificial light. Too dark a color reduces transparency and a stone should retain a lively look with some sparkle, which is achieved by skillful cutting and faceting. In many stones the distribution of color is uneven. When this results in clear divisions, as with tourmalines or agates, this is a much sought after effect. The blending of the various colours or tints of the same color and the various designs and patterns produced as they are by nature, give such stone an individual appeal that makes each one unique. See examples and pictures .
Another sought after quality is a high lustre. Amber and some garnet have a resinous lustre, while turquoise is sometimes described as "waxy". Lustre does not give a stone brilliance. In certain gemstones brilliance is produced by the skillful cutting of the stone's facets in such a way that they reflect light like mirrors, making the whole stone bright and shining when viewed from the top.
These are the main characteristics which give gemstones their unique appearance and which distinguish them from the great mass of other minerals. There is, however, a most important attribute which gemstones should posses: permanence.
Seleceted Gemstone species
White, colorless, gray
Actinolite
Agate
Alabaster
Alexandrite
Almandite
Amazonite
Amber
Amblydonite
Amethyst
Anatase
Andalusite
Andradite
Anhydrite
Apatite
Apophyllite
Aquamarine
Aragonite
Augelite
Aventurine
Axinite
Barite
Barytocalaite
Benitoite
Beryllonite
Brazilianite
Calaite
Cancrinite
Carnelian
Cassiterite
Cerussite
Chalcedony
Charoite
Chrysoberyl
Chrysoprase
Citrine
Celestite
Colemanite
Coral
Cubic zirconia
Danbrite
Datolite
Demantoid
Diamond
Diopside
Dolomite
Dumortierite
Emerald
Enstatite
Epidote
Euclase
Fluorite
Gahnite
Gaylussite
GGG
Glass
Grossularite
Hambergite
Hadynite
Hemimorphite
Hessonite
Hiddenite
Howlite
Hypersthene
Idocrase
Iolite
Ivory
Jadeite
Jasper
Kornerupine
Kunzite
Kurnakovite
Kyanite
Labradorite
Lazuilite
Leucite
Linobate
Magnesite
Meerschaum
Milarite
Mimrtite
Moldavite
Monazite
Moonstone
Montebrasite
Moss agate
Natrolite
Nephrite
Obsidian
Opal
Orthoclase
Parisite
Peral
Petalite
Phosgenite
Persiolite
Precious Beryl
Perhnite
Pyrope
Quartz
Rhodonite
Rock crystal
Rose quartz
Ruby
Sanidine
Sapphire
Scapolite
Scheelite
Serpentine
Siderite
Silver
Sinhalite
Smithsonite
Smoky Quartz
Sodalite
Spessartite
Sphene
Spinel
Spodumene
Staurolite
Strontium titanate
Tanzanite
Topaz
Tourmaline
Termolite
Turquoise
Tugtupite
Ulexite
Uvavorite
Variscite
Willemite
Wulfenite
YAG
Zircon
Zoisite
Red, Pink, Orange color
Cinnabar
Crocoite
Cuprite
Friedelite
Greenockite
Hematite
Manganotantalite
Piemontite
Proustite
Prupurite
Pyrargyrite
Pyroxmangite
Realgar
Yellow, Orange, Brown Color
Chromite
Descloizite
Durangite
Fergusonite
Gold
Hubnerite
Jet
Neptunite
Ruti;e
Sulfur
Sphalerite
Stibiiotanite
Thorianite
Tiger's Eye
Vanadinite
Wurtzite
Zincite
Green, Yellow-green, Blue-Green
Bayldonite
Chrysocholla
Dioptase
Gabolinite
Gaspeite
HornBlende
Malachite
Marcasite
Blue, blue-green, Blue-red color
Azurite
Boleite
Ceruleite
Euzenite
Lapis Lazuli
Linarite
Shattuckite
Vivianite
Black, Gray color
Anthophyllite
Aschynite
Bixbyite
Chalcopyrite
Davidite
Llmenite
Llvaite
Magnetite
Melonite
Pyrolusite
Tantalite
Wolframite
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Gemstone
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