Genuine Black Pearl Marked .925 Adjustable Ring

Genuine black pearl sterling silver marked .925 with a crystal arrow wide end pointing at pearl. One of the small crystals is missing in the middle. I do not believe it’s noticeable but please see pics. The ring is adjustable could be worn on the hand. I believe the pearl to be 3 to 4 cm Despite missing crystal it is a lovely ring. Pearl is a gorgeous midnight blue color.