Featured Help identify pearls

Hi, bought it today, big pearl weight 19.3 grams, i don,t know if it's a real pear or not, any help plz.....

 

Not the texture nor the hue of a real pearl...
A shell called Tridacnas could have a pearl this big (even several kilograms...) but non nacreous

 

Wow!

Investigating Fake Pearls Made from Tridacna Gigas Shells



Then this:
Fascinating, @kyratango!

 

How do you think that!!!!!

 

It has a stippled texture, almost like an ostrich egg. I dunno what that means.

 

Does not look right for a pearl Shine a bright light through it and take a pic

 

I think at the center of this pearl is a man-made seed with that stippled texture and that the nacre didn't fully cover it. I don't know what manufactured "seeds" exist, but perhaps this is worth a google? I did read that many pearl divers (Na Hoku, for example) use "seeds" from muscles from the Mississippi River. This does not seem to be the case.

Kyra, what if the seed was textured and not enough nacre grew to cover it? Is this a possiblity? That is what it looks like to me.

I've seen PAINTED pearls before, but this doesn't appear to be one.

 

But, it's enormous! Would they put such a large "seed" into a clam?

I guess a giant one like the tridacna, maybe??

 

Are you sure it's not glass? I mean, what were you told by the seller?

 

Not any pearl I've ever seen.....looks like glass..

 

I'm thinking maybe the tridacna, but no idea really just a guess.

I would think glass would be much easier to tell from a pearl (even one with a thin coating) and OP hasn't mentioned it could be glass, although 19.3 grams sounds like an awful lot of weight for even a giant pearl. I haven't got enough experience with weights of small items (like joolz) to guess if it could be glass from the weight - Komo - do you know? Care to hazard a guess of glass based upon the weight?

What do y'all think about the chip? Does that look like glass?

 

@abdel Smooth (not about the visible surface texture!) or gritty when rubbed against your front
tooth’s edge?

 

Not a glass. i'm sure ...you can see 4 small holes just to put the pearl.
My friend told me it was for the Jewish. They was in our city many years ago

 

except for the textured surface, the hue is the same...
https://www.etsy.com/fr/listing/463744489/billes-de-billes-de-verre-billes-bleu

 

??? It measured 23mm and 19.3 grams. Where is the prob

 

Nacre, even if bad quality or too thin layer has a very different hue (the more layers it has, the more "life" the hue has.
The tooth test will say if it is nacre

 

Very soft with hand and rough/painful when i rubbed it against tooth’s edge

 

Painful?
The feeling of gritty (check for a translation in your maternal language) is somewhat the equivalent of the awful sound a chalk can make on a blackboard can make to your ear

The best advice is to submit your piece in flesh to an appraiser

 

Kyra, Abdel is in Morocco, he probably speaks French as well.

 

So what you are saying is, OP has a marble? lol, long way from a pearl i'd say.