Blue diamonds as deep as the sea are usually valuable, and their rarity is second only to that of red diamonds. Today, blue diamonds are produced almost exclusively in South Africa and Australia.

Emerald, known as the king of emeralds, is a very precious gem and one of the precious gems recognized by the international jewelry industry.

Antique jewelry embodies the rich cultural heritage of human civilization with its precious materials, gorgeous colors, exquisite shapes and bright luster, and has heavy collection value.

These three pieces are relatively precious jewels. Different people have different preferences.