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Hi all I'm bringing up this thread again to share this video of a talk on the queen conch. Pearls are mentioned as well as other parts of its biology, culture, and also the need for restoration. https://m.youtube.com/watch?v=QLBtr2rOFkI I hope you like it Hector

L1: abalone (don't know what species); blacklip pearl oyster; pearl oyster (may be Isognomon?); abalone (don't know what species) L2: freshwater mussel; clam; winged pearl oyster (penguin); don't know L3: can't tell; 'trochus' snail; silver-golden lip pearl oyster; freshwater mussel L4: abalone...

This was released today by FAU http://newsblaze.com/story/2010101806202800008.wi/topstory.html

Hi Julie, thanks So far these are only cultured in the queen conch. Your other questions are also our questions. I hope we can have answers for these some time soon, including when you can get your hands on some of these lovely gems. Hector

Well, if that is the official definition, then it is, indeed, a blister pearl. Blister pearl is one thing, blister is another thing completely different, and blister cultured pearl yet another. To me only the 'blister' definition is correct. Definitions for 'blister pearl' and 'blister...

This photo is of probably the best specimen. It's definitely Strombus gigas. It shows both, orange and pink. It's 6 months growth, and 0.48 g.

Hi Steve You're right, that pearl grew for quite a while within the nautilus before attaching in the last chamber. I've read these animals move from one chamber to the next around twice a year. It may have started as a small wound while the nautilus was changing chambers. This site would be very...

Steve, that pearl does not appear to be a blister to me. It may have ended up as something similar to a blister but most of the pearl growth occurred within the mantle of the nautilus. it was a loose pearl until it grew big enough to rupture the pearl sac. It was good the pearl was growing at...

Pretty sure that is the case. The graft tissue will have associated to it some proteins, mucus and other organic matter that decay and leave such cavities. This is not likely to happen in small wounds, or if it happens, the cavities are so small that may barely (or not at all) show on an x-ray.

I found this photo today. these are cultured pearls of 1 year growth. the scale bar is 5 mm. This time the photo is not as good as the previous photos. I do not know much about markets (I just like challenges and this was a good one). But here are 2 more cents thrown into the discussion. I...

this is the thread https://www.pearl-guide.com/forum/natural-pearls/1887-cultured-conch-melo.html I also read the reports. It was for Melo melo cultured pearls in Thailand. I do not know anything else about this. However, probably just like we did, they may have been keeping things in the dark...

if there is a genetic connection, it would be to the host, since some gonad (sperm, eggs, connective tissue) cells may stick to the nucleus and then get covered by nacre. well, the host also influences pearl development, everything that is laid on a nucleus/pearl has to first pass through the...

Steve, I have no photo of that small pearl (or of any pearl for that matter, next to a coin) and I'm now geographically too far from the conch pearls to take new photos. Here's a photo of 4 pearls. The top right pearl is the same I posted before, the pearl on the lower left is that small pearl...

Here is some info. First photo: The white pearl is 0.56 g; dark pink 0.45 g, 8.9 mm. orange-pink 0.48 g; light pink 0.513 mm, 8 mm. Second photo 0.314 g (1.57 ct) 6.1 mm. Third photo 0.234 g (1.17 ct) 6.5 mm. Last photo 0.051 g (0.255 ct). Thanks all for your encouraging words. you are right...

another non beaded, dark pink, and nice flame. I'll post more details about these (sizes/weights) later. I hope these photos can unfloat your boats at least a bit H

an unusually symmetrical (and white) non beaded with also very nice flame. I like this one a lot.

this is a 3 month old non-beaded. with very nice flame

these are 6 months old pearls. different colors and qualities. shapes are very consistent, I was impressed.

no walloping tissue cavity. this is not a spherical pearl. it's a button shaped keshi (grown after removing the first pearl) H

I'll post some of my photos tomorrow. They are not professional quality, but will give some idea of the colors and flame. In the mean time, there is one photo of a conch cultured pearl and a close up of the flame in the GIA eBrief. There is also two photos in the FAU press release.