Cut pink Topaz gemstone
Cut pink topaz gemstone
Cut green Tourmaline gemstone
Cut Pyrope gemstone
Trillion cut tourmaline gemstone
Cut green Paraiba Tourmaline gemstone
Cut Indicolite gemstone
Cut Watermelon Tourmaline gemstone
Cut Cordierite (Iolite) gemstone
Cut Kyanite gemstone
Cut Scapolite gemstone
Cut yellow Vesuvianite gemstone
Cut Quartz gemstone
Cut Zircon gemstone
Cut Spessartine gemstone
Cut Aquamarine gemstone
Cut Peridot gemstone
Cut Scapolite round gemstone
Sherry Topaz
Round cut red Andesine
Cut Diopside gemstone
Mystic topaz gemstone
Garnet
Tourmaline cross section
Yellow-green Tourmaline rough
Pear cut diamond gemstone
Cut Ruby gemstone
Cut Sapphire gemstone
Cut yellow sapphire gemstone
Square cut purple Amethyst gemstone
Topaz gemstone
Oval cut Apatite gemstone
Cut Red Spinel gemstone
Cut pink-violet Kunzite gemstone
Oval cut red Rhodochrosite gemstone
Lapis lazuli, SEM
Emerald
Almandine
Rare bright green Uvarovite Garnet
Gneiss with garnet, light micrograph
Gneiss with garnet
Topaz
Cushion cut diamond gemstone
Brilliant cut diamond gemstone
Topaz gemstones
Topaz specimens
Oval cut Sphene gemstone
Moss agate
Topaz crystals
Cut Diaspore gemstone
Citrine
Topaz crystal in albite and microcline
Ruby in zoisite
Round cut mauve Spinel gemstone
Citrine gemstone
Cut Rose Quartz gemstone
Quartz crystals coated with pink topaz crystals
Concentric banding in agate
Tourmaline unworked stones
Tourmaline
Tourmaline on quartz
Prehnite and okenite
Rough pinkish-red Rubellite
Unpolished topaz crystals
Uncut emeralds
Yellow crystal
Raw garnet crystal
Tourmaline crystal, thin section
Black tourmaline, SEM
Fire Opal
Emerald cut diamond gemstone
Asscher cut diamond gemstone
Heart cut diamond gemstone
Brilliant cut diamond gemstones
Cut Sphalerite gemstone
Oval cut purple sapphire gemstone
Large citrine gemstone
Colourful gemstones
Peridot pebble and mixed-cut peridot
Cut Fire Opal gemstone
Oval cut citrine gemstone
blue apatite
Topaz gem
Lapis lazuli crystals I
Lapis lazuli crystals II
Tiger eye, polished surface
Tiger eye, thin section micrograph
Tiger eye, light micrograph
Raw, uncut Topaz, Brazil
Fluorite
Citrine gemstones and crystal
Citrine gemstones
Topaz, Minas Gerais, Brazil
Topaz or Beryl crystals
Crystal of imperial topaz
Brilliant cut pink diamond gemstone
Zircon crystals on host rock
Rose Quartz
Agate
Chalcedony
Pallasite meteorite fragment
Cut and polished crystal of imperial topaz
Barred olivine chondrule
Rhodonite
Dendrites in agate
Emerald cut ruby gemstone
Cut diamond
Amethyst gemstone
Asscher cut diamond gemstones
Mining core sample, Kenya
Cullinan Diamond
A Topaz apple, halved
Tool holding amethyst gemstone
Blue rectangular gemstone
Blue topaz in pegmatite groundmass
Labradorite sunstone
Aventurine
Sample of feldspar
Lizardite in serpentine rock
Purple fluorite
Rubies
Sapphires
Basalt, light micrograph
Pink beryl crystal, SEM
Cut Emerald gemstone
Citrine crystal group
Sample of muscovite
Stilbite crystal group
Axinite
Chrysocolla mineral
Beryl crystals
Quartz coated with silica
Apple of the type Topaz
Silver pendant with blue mabe pearl and blue topaz
Jewel in tweezers, studio shot
Amethyst crystals
Leopard skin jasper close
Leopard skin jasper II
Leopard skin jasper I
Carnelian
Automated diamond cutting
トパーズ
Twinned augite crystals
Smoky quartz
Brecciated jasper
Pear cut citrine
Princess cut citrine