Mr. Rankin
I'm so glad you've joined the forum! I am very interested in natural pearls and the re-emerging natural pearl market; particularly conch pearls... I visited your site earlier, and was most impressed by your definition of flame structure (along with the one of a kind jewelry displayed, extremely beautiful and unique!!!). It was simple, visual and hit the nail right on the head!
"...radiating pattern of white markings just beneath a lustrous or porcelain-like surface, exhibiting chatoyancy around the edges and creating a halo-effect. This flame-like pattern results from the arrangement of the prismatic crystals perpendicular to the surface of the pearl."
It's been trying to find an accurate description of these effects- GIA didn't even come close! Thank you!!
I hope that we'll be seeing more of you here, so we can all benefit from your years of experience in this niche of the pearl world.
Cheers!