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EXPLANATION OF THE PLATES.
FRONTISPIECE.
COLORED STONES.
- Sapphire.
- Oriental Ruby.
- Oriental....... Amethyst.
- Oriental....... Topaz.
- Asteria.
- Chrysoberyl.
- Spinelle Ruby.
- Emerald.
- Topaz.
- Aquamarine.
- Amethyst.
- A Doublet.
- Turquois.
- Chrysoprase.
- Garnet.
- Sardoine.
- Onyx.
- Oriental Agate.
PECULIAR DIAMONDS.
- Regent Diamond.
- Pigot ditto.
- Austrian ditto.
- Blue ditto.
- Profile of ditto.
- Nassuc ditto.
- Grand Russian ditto.