Among the popular retro styles in recent years, represented by the tragic jewelry style of Victorian era, black diamonds have become the new favorite of fashion. As a widow, Queen Victoria of England always wears only black jewelry to show her eternal sadness. At that time, the black gem became the protagonist on the jewelry stage. Now, when many new materials are added to this kind of jewelry, such as black pearls and other precious stones, black jewelry has lost its sad mood.

In the past, black diamonds were generally used as collectibles, and some of them were used as treasures in jewelry stores. French jewelry brand Kexin once displayed a black diamond weighing 88 carats when it was released in 1996, which attracted the attention of many collectors. 1At the jewelry exhibition held in Taiwan Province Province in September, 1998, the famous Mengbaoxing brand also introduced a black diamond key weighing 64.3 carats.