We generally divide the shapes of pearls into four categories: round, oval, oblate and baroque.
Round shapes pearl:
The round category is divided into three categories: perfect roumd, round and nearly round:
If the diameter difference is less than or equal to 3%, it is a perfect round;
If less than or equal to 8% is round;
If less than or equal to 12% is nearly round.
Oval shapes pearl:
It is divided into two types: Short-Oval shape and Long-Oval shape:
If the diameter difference is less than or equal to 20%, it is a short oval;
If the diameter difference is greater than 20%, it is a long oval. Common shapes include drop-shaped and pear-shaped.
Oblate shapes pearl:
It is divided into high oblate pearls and low oblate pearls two levels:
If the diameter difference is less than or equal to 20%, it is a high-flat pearl;
If the diameter difference is greater than 20%, it is a low-flat pearl. Oblate pearls have one side that is relatively flat, like steamed buns and bread. They are commonly known as button pearls and steamed bun pearls.
Baroque Pearls:
Because most cultured freshwater pearls are non-round, most freshwater pearls are Baroque. But whether they are seawater pearls or freshwater pearls, any pearls with irregular shapes can be called Baroque pearls.
Common baroque pearls include:
Keshi pearl(It also called recycled pearl)
Small seedless pearls, usually flat in shape and often thin, with pits and veins. It is often a by-product of pearl farming.
Most of the freshwater pearls harvested for the first time are full in shape. The shells without pearls in the first time are put back into culture again. The freshwater pearls harvested in the second time are mostly flat, concave and textured, so they will also be cultured. Used to refer to the second harvest of pearls. Keshi pearls are rarer than other pearl shapes. They are made entirely of nacre, so they are rich in color, with high luster and iridescence.
Keshi regenerated pearls (ケシ, mustard seeds) are also a Japanese word meaning "poppy" and in Japanese refer to all pearls without seeds.
Coin pearl:
Biwa pearl:
Screw/ Ringed pearl:
Replenish:
Edison Pearl:
Edison Pearls are named after Thomas Edison. Thomas Edison had over 2,000 inventions, but there were two things he couldn't create in a laboratory - pearls and diamonds. In order to "make up for" Edison's regret, the ecological cultured pearls developed by high technology were named Edison Pearls, also in memory of Edison.
