Red rectangular gemstone
Pink rectangular gemstone
Purple rectangular gemstone
Blue rectangular gemstone
Mystic topaz gemstone
Tweezers holding alexandrite gemstone
Citrine gemstone
Alexandrite gemstone
Sapphire gemstone
Beryl gem, cut stone
Garnet
Citrine gemstones and crystal
Citrine gemstones
Tool holding amethyst gemstone
Cut Fire Opal gemstone
Cut Ruby gemstone
Trillion cut diamond
Asscher cut diamond gemstone
Garnet gemstone
Amethyst gemstone
Diamonds
Cut Sapphire gemstone
Cut Pyrope gemstone
Square cut purple Amethyst gemstone
Turquoise gemstone
The Centenary Diamond
Diamonds under UV light
Cut Sphalerite gemstone
Cut Zircon gemstone
Amethyst gemstones
Diamond
Tool holding diamond
Emeralds
Moonstones
Moonstone
Garnet, variety Androdite
Diamond ring
Diamond grading certificate
Cut Peridot gemstone
Cut yellow sapphire gemstone
Pink diamonds
Cut Diaspore gemstone
Cut yellow Vesuvianite gemstone
Oval cut Sphene gemstone
Brilliant cut diamond gemstone
Cut Red Spinel gemstone
Heat-treated amethyst
Grossular garnet crystals on rock surface
Five polished ruby gemstones
Demantoid
Round cut mauve Spinel gemstone
Cut pink-violet Kunzite gemstone
Garnet-bearing rock
Clinochlore with garnets
Garnet crystals on schist
Pyrargyrite crystals
Spessartine garnet
Grossular dodecahedral crystal
Andradite mineral
Princess cut garnet
Emerald cut ruby
Round cut garnet
Pink gemstone in the shape of heart
Topaz gemstone
Amethyst gemstones and crystal
Diamonds and diamond ring
Diamond necklace
Diamonds and gemology tools
Diamonds on a scoop
Diamonds and aquamarine gemstones
Peridot gemstones
Tourmaline
Emerald crystal, Colombia
Opal gemstone
Orange sapphire gemstone
Large citrine gemstone
Trillion cut tourmaline gemstone
Cut Aquamarine gemstone
Colourful gemstones
Polished oval Hawk's Eye Quartz
Cut green Paraiba Tourmaline gemstone
Tourmaline gemstone
Aquamarine gemstone
Round polished Common Opal
Verdite green tourmaline gemstone
Orthoclase adenoma moonstone gemstone
Cushion cut diamond gemstone
Cut Emerald gemstone
Oval polished Smithsonite
Gneiss with garnet
Andradite crystals
Almandine mineral sample
Garnets in micaschist, light micrograph
Pyrope sand
Ruby crystal and gems
Grossular crystals in host rock
Almandine crystals in schist
Metamorphic rock
Ruby in zoisite
Peridotite
Garnet in peridotite
Black opal gemstone
Cut diamond
Topaz crystal in albite and microcline
Emerald crystal, close up
Imperial Jade streaked with green
Ironstone matrix with potch opal
Prismatic amethyst crystal
Olivine peridot crystal, close up
Potch opal with smooth and rough surface
Schorl and quartz crystals in groundmass
Turquoise on rock surface, close-up
Elbaite mineral (tourmaline)
Amethyst geode
Lapis lazuli specimen
Amethyst
Tourmaline crystals in quartz
Citrine
Opal
Peridot
Nephrite crystals
Tremolite crystals
Moonstone gemstones
Blue sapphire stone
Blue Sapphire uncut stone
Opal gem necklace
Jade stone
Indicolite tourmaline faceted stone
Watermelon tourmaline crystalline stone
Hawk's Eye quartz stone
Schorl tourmaline crystal stone
Opal in its host rock
Amethyst filled geode
Boulder opal formation
Polished and cut turquoise
Opal gem and rock
Opal specimen and cut stone
Synthetic diamond film
Topaz specimens
Amethyst geode interior
Tourmaline specimen
Illustrations of Indian diamonds
Watermelon tourmaline
Topaz
Cursed amethyst
Elbaite mineral
Dravite mineral
Uncut diamonds
Round cut diamond
Pear cut citrine
Round cut peridot
Princess cut citrine
Round cut emerald
Oval cut amethyst