While the pearl itself is beautiful, the nucleus is actually nothing more special than a water absorbent gel-like substance (super water absorbent polymer). It was presented a year ago in BaselWorld 2012.
Anyway, it wasn't really a new thing, because this was actually started by the Japanese around 10 years ago by Imai Seikaku. The nucleus is light blue. When it absorbs the water, it expands. However, the shape cannot be controlled.
The whole ultimate objective for this creation is very simple - grow larger pearls.
Here's how it goes:
1. Implant the water absorbent.
2. Water absorbent absorbs the water, forcefully expanding the gonad.
3. After 7 - 9 months, if the shell is not dead, you get a shell with a bigger gonad.
4. Do a second grafting with actual freshwater nucleus.
While it will always be a baroque since the gonad is forcefully and randomly restructured according to the water-absorbing-nucleus, the pearl with the water-absorbing-nucleus will have a different weight proportion in comparison to the other regular pearls.