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Jewelry Gemstones

Sapphire Diamond Ring
Sapphire Diamond Ring

A huge variety of minerals - 200 or more - have been used as gemstones at one time or another. But not all of these are suitable as jewelry gemstones, since many are too soft, too brittle or are too easily damaged by environmental factors. Some gemstones are best reserved for collectors rather than jewelry.

Jewelry gemstones have varying requirements depending on the type of jewelry. Gemstones set in rings get the hardest wear, since they often come into contact with hard surfaces. Gems set in earrings are less likely to be subjected to daily wear and tear, and the same is true for pendants.

It is generally recommended that colored gemstones set in rings have a hardness on the Mohs scale of 7 or greater. Rings worn everyday, such as engagement rings, are usually made with stones such as ruby and sapphire, which have a hardness rating of 9. Rings worn only occasionally, or set in protective settings such as bezels, can be made with softer stones. Some very popular gems, such as tanzanite (hardness of 6.5 to 7) and opal (5.5 to 6.5), are often set in rings, though neither are particularly hard.

Tourmaline Earrings
Tourmaline Earrings

However, hardness is not the only measure of a gem's suitability for jewelry. Some quite hard gems, such as emerald (with a hardness of 8), have internal fractures that render them more fragile. Nephrite jade, by contrast, is extremely durable, despite having a hardness of 6 to 6.5. Its strength is due to an internal structure of interlocking, matted fibrous crystals.

Despite these practical constraints, the variety of gemstones used in jewelry is actually increasing, as jewelry designers seek out rarer gemstones for making distinctive jewelry. Gems such as prehnite and andalusite were once rarely found in jewelry. Today, one will also find apatite, Mali garnet, charoite and seraphinite used as jewelry gemstones due to their unique colors and textures.

At one time the choice of jewelry gemstones was restricted by the selection of mass-produced jewelry available. Now it is possible to select from a vast range of gemstones carried by a dealer who specializes in colored gems, and have custom jewelry created by a jeweler of your choice.

  • Erstausgabe: May-21-2010
  • Zuletzt geändert: November-06-2018
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    Nachdruck (Text oder Grafik) ohne die ausdrückliche, schriftliche Zustimmung von GemSelect.com (SETT Company Ltd) ist streng verboten.
More Shapes
Beliebte Edelsteine
  • Saphir
  • Smaragd
  • Rubin
  • Aquamarin
  • Zirkon
  • Opal
  • Topas
  • Turmalin
  • Granat
  • Amethyst
  • Citrin
  • Tansanit
Alle Edelsteine (141)
A B C D E F G H I J K L M N O P Q R S T V Z
  • Achat
  • Achat-Geode
  • Actinolith Katzenauge
  • Almandin-Granat
  • Amazonit
  • Amethyst
  • Ametrin
  • Ammolith
  • Andalusit
  • Andesin Labradorit
  • Apatit
  • Apatit-Katzenauge
  • Aquamarin
  • Aquamarin-Katzenauge
  • Aventurin
  • Azurit-Druse
  • Beryll
  • Blutstein
  • Boulder-Opal
  • Cat's Eye Opal
  • Chalcedon
  • Charoit
  • Chromdiopsid
  • Chrysoberyll
  • Chrysokoll
  • Chrysopras
  • Citrin
  • Citrin mit Asterismus
  • Demantoid-Granat
  • Dendritischer-Achat
  • Diamant
  • Druzy Amethyst
  • Enstatit
  • Erdbeerquarz
  • Falkenauge
  • Farbwechselnde Edelsteine
  • Farbwechselnder Diaspor
  • Farbwechselnder Fluorit
  • Farbwechselnder Granat
  • Farbwechselnder Saphir
  • Feuerachat
  • Feueropal
  • Fluorit
  • Goldener Beryll
  • Granat
  • Grandidierite
  • Grossular Granat
  • Hemimorphit-Druse
  • Hessonit-Granat
  • Howlith
  • Hyalit Opal
  • Hämatit
  • Idokras
  • Imperial Topas
  • Iolith
  • Jade
  • Jade-Schmucksteine
  • Jaspis
  • Kalzit
  • Karneol
  • Katzenaugen Edelsteine
  • Klinohumit
  • Koralle
  • Korallen-Fossil
  • Kornerupin
  • Kunzit
  • Kyanit
  • Labradorit
  • Lapislazuli
  • Larimar
  • Malachit
  • Malaya-Granat
  • Mali-Granat
  • Mawsitsit
  • Mondstein
  • Mondstein Katzenauge
  • Morganit
  • Mystik Topas
  • Nuummit
  • Obsidian
  • Onyx
  • Opal
  • Opal in Matrix
  • Opal-Dublette
  • Peridot
  • Perle
  • Perlmutt
  • Pietersite
  • Prehnit
  • Pyrite
  • Pyrop-Granat
  • Quartz With Marcasite
  • Quarz
  • Quarz-Katzenauge
  • Regenbogen-Mondstein
  • Regenbogen-Pyrit
  • Rhodochrosit
  • Rhodolit-Granat
  • Rosenquarz
  • Rubellit-Turmalin
  • Rubin
  • Rubin in Fuchsit
  • Rubin-Zoisit
  • Rutilquarz
  • Saphir
  • Schneeflockenobsidian
  • Schokoladen Opal
  • Schwarzer Opal
  • Scolecite
  • Seraphinite
  • Serpentin
  • Sillimanit
  • Sillimanit-Katzenauge
  • Skapolith
  • Skapolith Katzenauge
  • Smaragd
  • Smithsonit
  • Sodalith
  • Sonnenstein
  • Spectrolite
  • Spessartin-Granat
  • Sphalerit
  • Sphen
  • Spinell
  • Stern-Edelsteine
  • Sterndiopsid
  • Sterngranat
  • Sternmondstein
  • Sternrosenquarz
  • Sternrubin
  • Sternsaphir
  • Sternsonnenstein
  • Tansanit
  • Tigerauge
  • Tigerauge Matrix
  • Topas
  • Tsavorit / Tsavolith
  • Turmalin
  • Türkis
  • Variscit
  • Zirkon
Hauptkategorien
  • Neuheiten
  • Schmucksteine Sets
  • Kalibrierte Edelsteine
  • Edelsteine nach Preisen
  • Erstklassige Edelsteine
  • Passende Paare
  • Cabochon Edelsteine
  • Drilled Gems, Briolettes and Beads
  • Geburtssteine
  • Schmuckstein-Schnitzereien
  • Fantasie Edelsteine
  • Stern-Edelsteine
  • Unbehandelte Saphire
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Größe und Gewicht

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