Semi Precious Gemstones
K Jayaram/science Photo Library
Precious Wentletrap Sea Snail Shell #1
Gilles Mermet
Precious Metal Recycling
Maximilian Stock Ltd/science Photo Library
Precious Metal Recycling #1
Maximilian Stock Ltd/science Photo Library
Precious Metal Recycling #2
Maximilian Stock Ltd/science Photo Library
Precious Metal Recycling #3
Maximilian Stock Ltd/science Photo Library
Precious Wentletrap Sea Snail Shell
Gilles Mermet
Precious Gems Garden
Mike Comb/science Photo Library
Precious Metal Analysis
Maximilian Stock Ltd/science Photo Library
Precious Metal Recycling #4
Maximilian Stock Ltd/science Photo Library
Jade Gemstones
Photostock-israel/science Photo Library
Native Gold On Quartz
Natural History Museum, London
Gold In Its Host Rock
Petr Jan Juracka
Amethyst Crystals
Lawrence Lawry/science Photo Library
Semi-precious Stones
Sinclair Stammers/science Photo Library
Semi-precious Stones #1
Sinclair Stammers/science Photo Library
Semi Precious Gemstones #1
K Jayaram/science Photo Library
Polished Semi Precious Stones
Photostock-israel
Healing Gemstones #2
Cordelia Molloy
Diamond On White Background #6
Sebastian Kaulitzki
Diamond On White Background #1
Sebastian Kaulitzki
Diamond On White Background #5
Sebastian Kaulitzki
Vermeer's Woman With Balance
Sheila Terry/science Photo Library
Corundum
Natural History Museum, London
The Centenary Diamond
Patrick Landmann
Tourmaline Gemstone
Natural History Museum, London/science Photo Library
Tiger Eye Ochre Gemstones
Photostock-israel/science Photo Library
Quartz Crystals
Lawrence Lawry/science Photo Library
Tweezers With Rough Cut Diamonds
Sam Ogden/science Photo Library
Earthrise As Skull
Animate4.com/science Photo Libary
Carnelian Gemstone
Natural History Museum, London/science Photo Library
Tourmaline Gemstone #3
Natural History Museum, London/science Photo Library
Sapphire Gemstone
Natural History Museum, London/science Photo Library
Birthstone Series: Moonstone
Natural History Museum, London/science Photo Library
Ruby Crystals
Stefan Diller/science Photo Library
Gold
Science Photo Library
Amethyst Crystal
Photostock-israel/science Photo Library
Aventurine
Natural History Museum, London/science Photo Library
Ruby #2
Wladimir Bulgar/science Photo Library
Quartz Crystals
Martin Bond/science Photo Library
Turquoise Stones
Vaughan Fleming/science Photo Library
Geologic And Mineral Resource Map Of Afghanistan
Us Geological Survey/science Photo Library
Zirconia Gemstone And Silver Ring
Science Photo Library
Ruby Crystals #1
Stefan Diller/science Photo Library
Lapis Lazuli
Natural History Museum, London/science Photo Library
Zirconia Gemstone And Silver Ring #1
Science Photo Library
Green Mineral
Wladimir Bulgar/science Photo Library
Diamonds #1
Jesper Klausen/science Photo Library
Ruby And Sapphires
Wladimir Bulgar/science Photo Library
Green Mineral #1
Wladimir Bulgar/science Photo Library
Green Mineral #3
Wladimir Bulgar/science Photo Library
Diamonds #3
Jesper Klausen/science Photo Library
Green Mineral #4
Wladimir Bulgar/science Photo Library
Ruby #1
Wladimir Bulgar/science Photo Library
Lapis Lazuli Specimen
Pascal Goetgheluck/science Photo Library
Lapis Lazuli Specimen #1
Pascal Goetgheluck/science Photo Library
Diamonds #7
Jesper Klausen/science Photo Library
Assorted Gold Jewellery
Martyn F. Chillmaid/science Photo Library
Turquoise
Natural History Museum, London/science Photo Library
Taj Mahal
Mark Thomas/science Photo Library
Ruby Crystals #2
Stefan Diller/science Photo Library
Ruby
Wladimir Bulgar/science Photo Library
Amethyst
Microgen Images/science Photo Library
Gold Ring In Acid
Martyn F. Chillmaid/science Photo Library
Silver Spoon And Polishing Cloth
Martyn F. Chillmaid/science Photo Library
Washing Ore To Extract Gold
Universal History Archive/uig
Roasting Gold Ore To Recover The Metal
Universal History Archive/uig
Diamond Grading Certificate
Patrick Landmann
Diamond On White Background
Sebastian Kaulitzki
Diamond Mine
Patrick Landmann
Venetia Diamond Mine
Patrick Landmann
Diamond Processing
Patrick Landmann