Semi Precious Gemstones
K Jayaram/science Photo Library
Amethyst Crystals
Lawrence Lawry/science Photo Library
Diamond On White Background #6
Sebastian Kaulitzki
Diamond On White Background #1
Sebastian Kaulitzki
Diamond On White Background #5
Sebastian Kaulitzki
The Centenary Diamond
Patrick Landmann
Tweezers With Rough Cut Diamonds
Sam Ogden/science Photo Library
Birthstone Series: Moonstone
Natural History Museum, London/science Photo Library
Turquoise Stones
Vaughan Fleming/science Photo Library
Wind-abraded Stones
Sinclair Stammers/science Photo Library
Ruby Crystals
Stefan Diller/science Photo Library
Quartz Crystals
Martin Bond/science Photo Library
Ruby Crystals #1
Stefan Diller/science Photo Library
Lapis Lazuli
Natural History Museum, London/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 #3
Wladimir Bulgar/science Photo Library
Green Mineral #4
Wladimir Bulgar/science Photo Library
Ruby #1
Wladimir Bulgar/science Photo Library
Ruby #2
Wladimir Bulgar/science Photo Library
Diamonds #7
Jesper Klausen/science Photo Library
Taj Mahal
Mark Thomas/science Photo Library
Ruby Crystals #2
Stefan Diller/science Photo Library
Green Mineral #1
Wladimir Bulgar/science Photo Library
Ruby
Wladimir Bulgar/science Photo Library
Amethyst
Microgen Images/science Photo Library
Cut And Polished Diamonds
Patrick Llewelyn-davies/science Photo Library
Cut And Polished Diamond
Patrick Llewelyn-davies/science Photo Library
Red Crystal Mineral
Wladimir Bulgar/science Photo Library
Red Crystal #3
Wladimir Bulgar/science Photo Library
Diamond Mine
Patrick Landmann
Venetia Diamond Mine
Patrick Landmann
Diamond Processing
Patrick Landmann
Diamond On White Background #2
Sebastian Kaulitzki
Uncut Diamonds
Patrick Landmann
Diamond Crystals
Wladimir Bulgar
Diamond On White Background #7
Sebastian Kaulitzki
Diamond On Black Background #9
Sebastian Kaulitzki
Types Of Diamonds
Science Photo Library
Quartz Crystals
Th Foto-werbung/science Photo Library
Quartz Crystals #1
Th Foto-werbung/science Photo Library
Diamonds
Jesper Klausen / Science Photo Library
Diamonds
Patrick Llewelyn-davies/science Photo Library
Diamond Cutting Pattern
Science Photo Library
Diamonds #1
Jesper Klausen / Science Photo Library
Diamonds #2
Jesper Klausen / Science Photo Library
Diamonds #3
Jesper Klausen / Science Photo Library
Diamond Crystal Structure
Laguna Design/science Photo Library
Zircon Birthstone #1
Natural History Museum, London/science Photo Library
Un-cut Diamonds
Christophe Vander Eecken/reporters/science Photo Library
Citrine Quartz Birthstone
Natural History Museum, London/science Photo Library
Automated Diamond Cutting #1
Christophe Vander Eecken/reporters/science Photo Library
Amethyst Quartz Birthstone
Natural History Museum, London/science Photo Library
Diamonds Against Grey Background
Jesper Klausen / Science Photo Library
Diamond
Alfred Pasieka/science Photo Library
Un-cut Diamond
Christophe Vander Eecken/reporters/science Photo Library
Automated Diamond Cutting #3
Christophe Vander Eecken/reporters/science Photo Library
Diamonds #4
Jesper Klausen/science Photo Library
Diamonds #6
Jesper Klausen/science Photo Library
Diamonds #8
Jesper Klausen/science Photo Library
Sample Of Sapphire
Arnold Fisher/science Photo Library
Diamonds
Jesper Klausen / Science Photo Library
The Delphi Charioteer.
David Parker/science Photo Library
The Delphi Charioteer. #1
David Parker/science Photo Library
The Delphi Charioteer. #3
David Parker/science Photo Library
Diamond On Black Background
Sebastian Kaulitzki
Diamond On Black Background #1
Sebastian Kaulitzki
Diamond Grading Certificate
Patrick Landmann
Diamond On White Background
Sebastian Kaulitzki
Diamond On White Background #3
Sebastian Kaulitzki