Richard W. Wise
Well-known member
- Joined
- May 3, 2005
- Messages
- 185
GemWise
An Extraordinary Strand of Natural Pearls:
I spotted a magnificent strand of natural pearls from a dealer at AGTA. What makes this two strand exceptional is its symmetry. When considering natural pearls it is necessary to bracket all that you have come to expect from their cultured counterparts. The word round, for example, takes on a whole new meaning when applied to naturals. We have gotten used to the "perfection" of the ubiquitous Akoya pearls from Japan, perfectly round, with matching color. Few realize that all this is a result of processing; the pearls are left in the shell just long enough to deposit a thin coat of nacre, so thin that GIA had to redefine it's definition of "thick" coating from 0.50 to 0.25mm. The pearls are then bleached white to remove spots, then further bleached for uniformity of color, then dyed pink. READ ON GemWise, gonzo journalism for gem & jewelry lovers)
An Extraordinary Strand of Natural Pearls:
I spotted a magnificent strand of natural pearls from a dealer at AGTA. What makes this two strand exceptional is its symmetry. When considering natural pearls it is necessary to bracket all that you have come to expect from their cultured counterparts. The word round, for example, takes on a whole new meaning when applied to naturals. We have gotten used to the "perfection" of the ubiquitous Akoya pearls from Japan, perfectly round, with matching color. Few realize that all this is a result of processing; the pearls are left in the shell just long enough to deposit a thin coat of nacre, so thin that GIA had to redefine it's definition of "thick" coating from 0.50 to 0.25mm. The pearls are then bleached white to remove spots, then further bleached for uniformity of color, then dyed pink. READ ON GemWise, gonzo journalism for gem & jewelry lovers)