Natural pearl in the form of a cross. A very rare occurrence.

Irregularly shaped pearls are called baroque pearls.

Irregularly shaped pearls are called baroque pearls.
This includes all stones that have turned out to be imperfectly shaped.
Presumably, the name comes from the French word "baroque" - whimsical, pretentious.
Some people think that baroque is defective pearls. However, this is not at all the case, each of them is beautiful and unique. Indeed, it is precisely because of their exclusivity that such pearls are not cheap.
Because of their irregular yet unique shape, pearls are highly prized among jewelers and designers. There are times when it costs more than the most perfect pearls.
Among baroque pearls there are pearls in the form of an oval, cross, rings, sticks, petals, vague figures. For designers, this is a great find, which combines the sparkling luster of mother-of-pearl and a unique shape. Ordinary classic jewelry requires an accurate selection of pearls of the same size and color, and for design work, something absolutely unique is needed. And it is the baroque pearls that become this unique.