Many beliefs and cultures symbolize pearl across the histories, including Biblical references to pearl in the Book of Revelations. Although it is not a gemstone, the pearl has a great historical significance, is highly priced, and has a more than niche popularity. The luster of pearl is different to the brilliance of a diamond, yet there are engagement rings that feature pearl as its center stone with smaller diamonds as accent stones on the sides. Prominent metal band choices for a pearl diamond ring include silver, rose gold, yellow gold, palladium, and platinum. Since pearl is sensitive to sulfuric compound, which is used in the rhodium plating process, white gold is not considered a suitable metal band for pearl engagement rings. It is said that pearl requires special care for maintaining its luster and keep its nacre coating. So if you are a person with an active lifestyle, it is advised to take the pearl ring off while cleaning household items with chemicals or ultrasonic methods. Besides, as pearl carries a hefty price, taking care of the precious pearl is a must.