Big odd shaped and very irregular pearl.

[simali]

Hello pearl lovers!
I have a question.
In a jeweler shop I saw a necklace with very big odd shaped grey pearls. They were not peanut-shaped, not blister, not keshi. They look like gigantic popcorn, som up to 30 and 40 mm, with very good luster.
Of course, I can not go to the shop an ask to take a picture...
Can anybody help me to find these gigantic pearls?
Thanks.
Nicole

 

[knotty panda]

Can you contact the shop to ask what they were?

 

[Valeria101]

Just a guess... nucleated freshwaters, died gray.

Were the shapes anything like THESE or THESE? The color is not very relevant there are very refined, convincing die jobs out there - just the shape and surface that are quite unique to the type.