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OPL Spectroscopes

The spectroscope can be an invaluable aid in gem identification. When you look into a spectroscope, you will see the color "spectrum"-- red,orange, yellow, green, blue and violet. When viewing a gemstone, dark vertical bands are seen at certain points along the spectrum; each gem has a unique "fingerprint" (known as its "spectra") by which you can make a positive identification.

OPL Diffraction Grating Spectroscope: Pocket Model  ($98.00)
  • Small size (approx. 2" x 1/2" diameter) is ideal for use in the field (sealed for protection from damage).
  • Fixed slit (recessed for protection from damage).
  • Fixed focus.
  • High quality craftsmanship, made in England.

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OPL Diffraction Grating Spectroscope:
Desk Model with Precision Stand ($225.00)

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  • Large size for table-top and lab use.
  • Fixed slit (recessed for protection from damage).
  • High quality craftsmanship, made in England.
  • OPL Spectroscope Stand allows for optimal ease and control, holds spectroscope firmly at correct angle, and provides rotating stone table.

I want to
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Gemstones that usually show spectra using OPL Spectroscope
Almandine Garnet Peridot Synthetic Corundum
(Alexandrite type)
Andalusite Pyrope Garnet Synthetic Rutile
Apatite Ruby Natural Blue Spinel
Chrysoberyl Sapphire Synthetic Blue Spinel
Chrysoberyl (Alexandrite) Blue Sapphire Natural Red Spinel
Demantoid Garnet Green Sapphire Synthetic Red Spinel
Diamond Yellow Sapphire Red Tourmaline
Emerald Spessartite Garnet Zircon (all types)
Jadeite Synthetic Alexandrite