Hello, I am hoping someone knows this maker mark and can help me identify these beautiful pearls... they are gritty when rubbed together, 11mm size, 14k clasp with maker mark shown in zoomed in photo... sorry it is a bit grainy as I could not focus any closer. These are very pretty and I'd love to identify them if possible. Thank you all so much. P.S. This is my first post so apologies if I missed anything!