What is the symbol on Chaohongji's necklace?

Chaohongji Necklace This 12 constellation clavicle chain adopts a double-star design, and the hollow shape makes the pendant look smart and more layered. Two five-pointed stars can be split and matched and worn alone. The big five-pointed star adopts smooth technology, and the small five-pointed star adopts frosted technology, which reflects the double texture. The small five-pointed star is engraved with the hollow signs of the twelve constellations. Exquisite and beautiful details, exquisite gold craftsmanship.