It's truly an ingenious idea!
I found the piece with the Citrine nuclei pictured in the Modern Jeweler article particularly elegant and unique. I have always liked the idea of pairing pearls with colored gemstones- especially briollets- but this takes my thoughts to an entirely new level!! WOWZA.
I knew that you can basically nucleate an oyster with just about any type of material you wanted as long as the epthelial donor tissue was included in the procedure- I wonder why no one has thought about this until now?
That is going to be one very famous artist...