Hi all, I saw a string of pearls a while ago and they were this beautiful red color - not a black Tahitian with red overtones, but like a lovely burgundy-red. I found a picture on google images which kind of explains the color I mean. But I’m not sure if they’re naturally occurring in that color or if they’re dyed/treated? And what kind of pearls would they be / how rare or expensive are they (roughly)? Thanks for any info!