Pearl Guide – The Castle Jewelry

Pearl Guide

Pearls are the only gemstones made by living creatures. Pearls are the oldest known gem, and for centuries it was considered the most valuable. Different cultures have believed that pearls were everything from a symbol of prosperity to heavenly dewdrops that fell into the sea. Historically, pearls have been a divine gift especially for royalty. Today pearls have been considered an ideal gift for the bride because they symbolize purity and innocence. A timeless gift for any milestone occasion! Pearls can have pearl enhancer (pendants with a hinged clasp) added for extra bling. As well as several versatile ways to wear the pearls!


Pearls have a hardness of 2.5-4.5 on the Mohs Hardness Scale. Meaning they are very soft! Pearls are formed when a mollusk produces layers of nacre around some type of irritant that breaches the inside of the shell. There are several different factors to consider when looking for pearls: luster, surface quality, shape, color, size, treatment, and pearl type.




Natural pearls are extremely rare to find. Unfortunately, today, most have already been harvested.  Natural pearls occur with no assistance of humans.


Most pearls sold today are cultured pearls. The only difference between natural and cultured pearls is that cultured pearls are created from mollusks that are bred in order to create pearls for harvest. A technician will implant an irritant or particle in the shell, the mollusk is returned to the water, and the mollusks produce the layers of nacre around the irritant as normal.



Any pearl that is cultivated in a lake, pond, or river is considered a freshwater pearl. Most freshwater pearls are created in China. Freshwater pearls can come in a wide variety of colors.


Saltwater pearls come from oysters in oceans, seas, gulfs, and bays. Some types of saltwater pearls include Akoya Pearls, Tahitian Pearls, and South Sea Pearls.



South Sea Pearls: Australia, Indonesia and the Philippines are the leading producers of South Sea saltwater pearls. South Sea pearls range in size from 8mm to 22mm.


Akoya Pearls: Akoya pearls are saltwater pearls cultivated in Japan and China. They're the most popular type of pearls. Akoya pearls range in size from 2mm to 10mm.


Tahitian Pearls: Tahitian saltwater pearls are named after the tropical island of Tahiti; however, they are cultivated in many places around the French Polynesian islands. Tahitian pearls are the only naturally-occurring dark colored pearls. Tahitian pearls range in size from 7mm to 20mm.


Freshwater Pearls: China and the US are the leading producers of freshwater pearls. Freshwater pearls are cultivated in lakes, ponds, and rivers. Freshwater pearls range in size from 6mm to 8mm.



Pearls are delicate, so they chip and scratch away rather easily. The luster of pearls can quickly be dulled too. The only way to clean pearls safely is to wipe them with a moist, soft cloth. For pearl jewelry, it is best to avoid direct contact with any chemicals such as, perfume, cleaners, chlorine, alcohol, make-up, hairspray, etc. As with your diamonds, it is important to store your pearls separate from other jewelry.


Have you ever struggled to figure out what ring size you are? Head over to our next guide to see all of our helpful tips about determining your ring size.

Contact Us

Directly email us using the form below. We are ready to assist you with anything you may need. For live support please do not hesitate to call us or start a live chat!

Make Us An Offer!

Submit your offer below!

Layaway Request

Submit your offer below!

See This Item In Store at...

Fill out the form below to book an appointment to see this item!