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  • First Published: February-20-2006
  • Last Updated: November-11-2014
  • © 2005-2020 GemSelect.com all rights reserved.
    Reproduction (text or graphics) without the express written consent of GemSelect.com (SETT Company Ltd.) is strictly prohibited.
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All Gemstones (143)
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    • B Back to Top
  		•  Beryl
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    • C Back to Top
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  		• Cat's Eye Gemstones
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  		• Chalcedony
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  		• Chocolate Opal
  		• Chrome Diopside
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  		• Chrysoberyl
  		• Chrysocolla
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  		• Citrine
  		• Color-Change Diaspore
  		• Color-Change Fluorite
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  		• Coral
    • D Back to Top
  		•  Demantoid Garnet
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  		• Diamond
  		• Druzy Amethyst
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    • E Back to Top
  		•  Emerald
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    • F Back to Top
  		•  Fire Agate
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    • G Back to Top
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  		• Golden Beryl
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  		• Grossularite Garnet
    • H Back to Top
  		•  Hawk's Eye
  		• Hematite
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  		• Hiddenite
  		• Howlite
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    • I Back to Top
  		•  Idocrase
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    • J Back to Top
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    • L Back to Top
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    • M Back to Top
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  		• Malaya Garnet
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  		• Maw-Sit-Sit
  		• Moonstone
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  		• Moss Opal
  		• Mother of Pearl
  		• Mystic Topaz
    • N Back to Top
  		•  Nuummite
    • O Back to Top
  		•  Obsidian
  		• Opal
  		• Opal Doublet
  		• Opal in Matrix
    • P Back to Top
  		•  Pearl
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  		• Prehnite
  		• Pyrite
  		• Pyrope Garnet
    • Q Back to Top
  		•  Quartz
  		• Quartz Cat's Eye
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    • R Back to Top
  		•  Rainbow Moonstone
  		• Rainbow Pyrite
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  		• Rhodolite Garnet
  		• Rose Quartz
  		• Rubellite Tourmaline
  		• Ruby
  		• Ruby in Fuchsite
  		• Ruby-Zoisite
  		• Rutile Quartz
    • S Back to Top
  		•  Sapphire
  		• Scapolite
  		• Scolecite
  		• Seraphinite
  		• Serpentine
  		• Sillimanite
  		• Sillimanite Cat's Eye
  		• Smithsonite
  		• Smoky Quartz
  		• Snowflake Obsidian
  		• Sodalite
  		• Spectrolite
  		• Spessartite Garnet
  		• Sphalerite
  		• Sphene
  		• Spinel
  		• Star Diopside
  		• Star Garnet
  		• Star Gemstones
  		• Star Lemon Quartz
  		• Star Moonstone
  		• Star Rose Quartz
  		• Star Ruby
  		• Star Sapphire
  		• Star Sunstone
  		• Strawberry Quartz
  		• Sugilite
  		• Sunstone
    • T Back to Top
  		•  Tanzanite
  		• Tiger's Eye
  		• Tiger's Eye Matrix
  		• Topaz
  		• Tourmaline
  		• Tsavorite Garnet
  		• Turquoise
    • V Back to Top
  		•  Variscite
    • Z Back to Top
  		•  Zircon
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart