Cut and polished diamonds
Diamonds
Diamond
Diamond gemstones
Crushed diamond, SEM
Microdiamond crystal
Cut diamond
Pre-cut diamond forms
Microdiamond crystal, SEM
Cullinan diamond replica
Synthetic diamond film production
Synthetic diamond film
Diamond in kimberlite
Diamond cleaning
Carbon
Sylvanite crystals
Uncut diamonds
Herkimer diamonds of quartz mineral
Chiastolite section
Diamond in host rock
Uncut diamond
Diamond with garnet inclusion
Graphite on calcite crystals
Pink diamonds
Diamonds under UV light
Round cut diamond
Radiant emerald cut diamond
Emerald cut diamond
Asscher cut diamond
Marquise cut diamond
Pear cut diamond
Square princess cut diamond
Trillion cut diamond
Asscher cut diamond gemstone
Humphry Davy (1778-1829), English chemist
Large citrine gemstone
Cushion cut diamond gemstone
Brilliant cut diamond gemstones
Brilliant cut diamond gemstone
The Centenary Diamond
Diamond grading certificate
Sapphire crystal
Ironstone matrix with potch opal
Unpolished topaz crystals
Uncut diamond from Africa
Diamonds and diamond ring
Diamonds and gemology tools
Diamonds on a scoop
Diamonds and aquamarine gemstones
Chalcopyrite and quartz crystals
Pyrite
Pyritohedral crystals, close up
Rough diamonds
Apophyllite crystals
Apophyllite on calcite
Tetrahedrite
Amethyst crystals, Kirlian photograph
Gemstones and light dispersion
Ruby
Yellow diamond
Quartz variation, Herkimer Diamonds
Illustrations of Indian diamonds
Factory worker selecting diamonds, Angola
Turquoise mineral
Rubies and sapphire
Cut and polished agate
Amethyst gemstones and crystal
Citrine gemstones and crystal
Wedge shaped titanite crystal
Raw amethyst crystal
Raw citrine crystal
Raw garnet crystal
Raw tourmaline crystal
Tourmaline gemstones and crystal
Tourmaline crystal, thin section
Citrine crystals
Tourmaline crystals in quartz
Tourmaline in quartz
Andradite, New Jersey
Black tourmaline in mica schist
Amethyst
Citrine
Tourmaline
Andradite crystals
Almandine mineral sample
Olivine mineral sample
Garnets in micaschist, light micrograph
Nephrite crystals
Tremolite crystals
Topaz crystals
Pyrope sand
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
Amethyst geode
Amethyst geodes
Garnet gemstone
Amethyst filled geode
Clinochlore with garnets
Ruby crystal and gems
Garnet crystals on schist
Amethyst crystals
Rubellite tourmaline pendant