Gemstone

Enhanced / Treated

Misleading Names

Name

Stone

Diamond

Quartz

Arkansas diamond, Alencon diamond, Alaska diamond,

Baffa diamond, Bohemian diamond, Briancon diamond,

Brighton diamond, Bristol diamond, Buxton diamond,

Cape May diamond, Cornish diamond, Herkimer diamond,

Dauphin diamond, German diamond, Hawaiian diamond,

Horatio diamond, Hot Springs diamond,  Irish diamond,

Lake George diamond, Mari/marmora/marmarosch diamond,

Mexican diamond, Mutzschen diamond, Occidental diamond,

Paphros diamond, Pecos diamond, Quasima diamond,

Quebec diamond, Rhine diamond,  Saxon diamond,

Colorado diamond, Radium diamond, Schaumberg diamond,

Stolberg diamond, Tasmanian diamond, Trenton diamond,

Vallum diamond, Washita diamond  and  Zabeltitzen diamond.

Pyrites

Alpine diamond

Colourless Corundum.  

Arabian magic diamond

Hematite

Alaskan Black diamond

Synthetic Spinel

Jourado diamond

Obsidian

Nevada black diamond

Synthetic rutile

Rainbow magic diamond

Colourless Zircon

Ceylon diamond, Matura diamond and Ranggon diamond

Colourless Topaz

Finder's diamond, Killiecrankie diamond, Mogok diamond

Manmade Diamond

CZ diamond

Manmade Diamond

American Diamond

Emerald

Synthetic emerald

Chatham emerald, Gilson emerald 

Peridot

Night emerald, Bastard emerald and Evening emerald.

Green fluorspar

Bohemian emerald, Emerald matrix, Mother-of-emerald,

South African emerald and Transvaal emerald.

Dioptase

Copper emerald, Congo emerald, Pyro emerald, Emerauldine

Quartz

Crystalline emerald, Gibsonville emerald and Indian emerald

Green glass imitation

Broghton emerald, Electric emerald, Ferrer's emerald,

Medina emerald, Endura emerald and  Spanish emerald. 

Synthetic gems

Emeraldine, Lithia emerald, Mascot emerald, Tecla emerald 

Green colour tourmaline

Emeraldite and Emeralite

Green beryl

Vanadium emerald

Garnet

Uralian emerald

Prehnite

Cape emerald

Euclase

Prismatic emerald

Green colour sapphire

 Oriental emerald

Ruby

Synthetic Ruby

Geneva ruby, Wyse ruby

Garnet

Adelaide ruby, Australian ruby, Bohemian ruby, Alabandine

American ruby, Black Hills ruby, California ruby,

Montana ruby, Mountain ruby and Rocky Mountain ruby.

Pyrope Garnet

Arizona ruby, Cape ruby, Fashoda ruby,

 Colorado ruby,  Elie ruby and Rock ruby.

Red colour tourmaline

Brazilian Ruby, Siberian ruby and San Diego ruby.

Quartz

Ancona ruby and Mont Blanc ruby.

Spinel

Balas Ruby, Pomegranate ruby and  Ruby spinel.

Timur Ruby and Black Prince's Ruby

Sapphire

Iolite and Cordierite

Lux sapphire, Lynz sapphire and  Water sapphire

Blue colour tourmaline

Uralian sapphire

Blue colour spinel

Hope sapphire and Sapphirine

Lapis Lazuli

Gold sapphire

Black colour obsidian

Tokay lux sapphire

Blue colour zoisite

Meru sapphire

Lab created sapphire

Burma sapphire.

Alexandrite

Synthetic spinel

Alexandrine or Synthetic alexandrite

Synthetic corundum

Garnet

Alexandrite garnet

Sapphire

Blue alexandrite

Agate

Obsidian

Glass agate and Iceland agate

Glass opal simulant

Lake Superior fire agate or Mexican agate

Amazonite

Confused with Jade

Amber

Imitations and resins

Amberine, Australian amber, Black amber and Earth stone. 

Amethyst

Synthetic gems

Japanese Amethyst,  Desert amethyst, False amethyst

 and Lithia amethyst. 

Purple sapphire

Bengal amthyst

Ametrine

Lab created ametrine

Synthetic ametrine

Andalusite

Synthetic gems

Earth stone and Feldspar apyre

Aquamarine

Topaz

Nerchinsk aquamarine

Blue green  zircon

Siam aquamarine

Synthetic gems

Mass aqua and Synthetic aquamarine.

Aventurine

Synthetic gems

Aventurescence

Bloodstone

Moldavite cut gems

Bottlestone

Chalcedony

Also known as Calcedony and confused with quartz.

Charoite

Chrysolite

Same as Peridot . Additional name for peridot. ( Refer the same )

Citrine

Quartz

Smoky Citrine

Synthetic gems

Madeira citrine, Topaz quartz

Coral

Imitations

Japanese Moro coral, Chinese coral

Diopside

Synthetic gems

Chrome diopside

Garnet

Leucite

White garnet and Vesuvian garnet

Idocrase

Pyramidal garnet

Synthetic gems

Rhodolite, Bohemian garnets and Malaya

Black titanium

Melanite

Heliotrope

It is the additional name for Bloodstone. ( Refer the same )

Hematite

Synthetic gems

Micaceous hematite, Red ochre or ruddle,

Kidney ore and Pencil ore

Iolite

Synthetic gems

Spanish lazulite and Water sapphire

Jacinth

It is the additional name for Zircon. ( Refer the same )

Jade

Quartz

Australian jade, Red jade and Indian jade

Jasper

 Jasper jade, Oregon jade and Swiss jade

Garnet

African jade, Transvaal jade and Garnet jade

Feldspar

Amazon jade and Colorado jade

Opal

Fire jade

Malachite

Silver peak jade

Imitations

Korea jade, Imperial sodden snow jade and Meta-jade.

Synthetic gems

Jade tenace, Jadine,  Fukien jade, Korean Jade,

Manchurian Jade, Mexican Jade, Soochow Jade,

Alaska jade, Andesine jade, California jade, Jade tenace,

Imperial Mexican jade, Honan jade, Serpentine jade,

Shanghai jade, New jade, Pectolite jade, Manchurian jade,

Styrian jade, Soochow jade and Vesuvianite jade. 

Jasper

Synthetic gems

Ribbon jasper, Orbicular jasper, Landscape jasper,

Kunzite

Synthetic gems

Rose kunzite and pink sapphire.

Lapis Lazuli

Artificial Jasper

Swiss lapis, False lapis, German lapis and German Lapis.

Synthetic gems

Nevada lapis, Faience lapis, Italian lapis,

Copper lapis and Canadian lapis.

Malachite

Synthetic gems

Emerald malachite, Blue malachite, Copper malachite

and Siliceous malachite.

Moonstone

Chalcedony

Blue moonstone, California moonstone, Mojave moonstone,

Oregon moonstone and Prismatic moonstone.

Synthetic gems

Beach moonstone, Pink moonstone and Rose moonstone

Morganite

Synthetic gems

Pink Beryl and Aka Morganite

Obsidian

Imitations

Rhyolite glass and Montana jet

Opal

Synthetic gems

Blue opal, Brazilian Fire Opals and Ceylon opal

Imitations

Opal glass

Onyx

Agate

Black Onyx

Synthetic gems

Mexican onyx, Alabaster onyx, Green onyx, Pedrara onyx,

Utah onyx, Yaqui onyx and Yava onyx.

Pearl

Imitations

Atlas Pearl, Delta pearl, La beau pearls, La tausca pearls,

Roman pearls and Tecla pearls

Coral

Red Sea Pearl

Synthetic gems

Antilles pearl, Atlas pearls, Ivory pearls, Cave pearl,

Fire pearl, Oil pearl and One-year pearl.

Peridot

Yellow green tourmaline

Ceylon peridot

Synthetic gems

Hawaiite

Quartz

Synthetic gems

Bohemian crystal, Smoky topaz, Prismatic quartz, Golden rutile,

Sapphire quartz and hawk's eye quartz

Spinel

Synthetic gems

Balas rubies, Cobalt spinel, Pleonast, Rubicelle,

Arizona spinel, Sapphire spinel and Kandy spinel

Lab created stones

Almandine spinel, Aqua gem, Zircon spinel, Rozircon, Azurite

Sardonyx

Synthetic gems

Catalina sardonyx

Tanzanite

Synthetic gems

Blue talc and Blue zoisite

Topaz

Quartz

Madeira Topaz, Palmeira Topaz, Rio Topaz, Smoky Topaz,

Hinjosa topaz, Gold(en) topaz, Spanish topaz, Smoky Topaz,

Scottish topaz, Orange topaz, Topaz quartz , Topaz saffronite

Sapphire

Indian topaz, King topaz, Star topaz, Palmeira topaz,

Topaz cat's eye

Citirine

Bohemian topaz, Colorado topaz, Jeweler's topaz,

Madeira topaz, Saxon topaz, Scotch topaz, Salamanca topaz,

Synthetic gems

Palmyra topaz, Quartz topaz and Occidental topaz.

Nevada topaz, Hyacinth topaz, Hawaiian golden yellow topaz.

Tourmaline

Synthetic gems

Green Tourmaline, Verdelite,  Chromium Tourmaline, Aqualite

Watermelon Tourmaline,  Moor’s head Tourmaline,

Indigolith and Dravite

Tourquoise

Synthetic gems

Vienna turquoise, Turquosite and Gilson turquoise

Australian turquoise, Utah turquoise, Chinese turquoise,

Fossil turquoise, Ivory turquoise, Tooth turquoise,

Sacred turquoise and Nevada turquoise.

Zircon

Synthetic gems

Starlite, Siam Zircon, Ceylon,  Matura diamond,

Vermeil Cubic zirconia and Blue zircon