Loose Opal Triplets For Sale
All Gems are from the private inventory of Donald K. Hall, Manufacturing Jeweler and has been stored in Bank Vaults, unavailable to the public for over 25 years.
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Opal Solid
Opal Doublets
Opal Triplets
Carved Opal
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... Central to the nomenclature is the description of body tone. Body tone is the base color of the stone, without taking the play of color into account. Under the new nomenclature, all tones from black to white are assigned a value from N1 to N9.
Brightness of Fire
... The other criterion is the brightness
of the fire. Brightness is graded on a scale of 1 to 5.
| Level: | Name: | Description: |
|---|---|---|
| 1 | Faint | Shows a little play of color only under direct sunlight, none under low light |
| 2 | Dull | Shows some color under low light, but is dull even under indirect sunlight |
| 3 | Bright | Shows fair color under low light and very nice fire under indirect sunlight |
| 4 | Very Bright | Shows good color under low light and sharp crisp color under indirect sunlight |
| 5 | Brilliant | Shows exceptionally bright crisp color in all lighting situations |
All information and artwork is Copyright ©
1997/2011 by
Promotion Consulting and Marketing Corp. Hawaii Art Gallery, and
Donald K. Hall