What are genuine pearls? A comprehensive explanation of their characteristics, types and value
Posted by GINZAREPEARL

Genuine pearls refer to real pearls, whether natural or cultured. They are prized around the world for their elegant shine.
There are three main types of pearls:
- Akoya pearls
- White South Sea Pearl
- Black pearl
In this article, we will explain in detail the basic characteristics of genuine pearls, as well as their types, value, and how to choose them.
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Definition and characteristics of genuine pearls
Genuine pearls are a general term for pearls grown in seawater. They mainly refer to pearls produced from mother oysters such as Akoya oysters, White-lipped oysters, and Black-lipped oysters. Genuine pearls grown in seawater have a unique luster and dignity due to their growing environment.
With its deep natural shine and fine luster, high durability and asset value, it is available in a wide variety of sizes and colors. It is recognized as a necessity in Japan, especially as it is suitable for use at weddings, funerals, and other ceremonial occasions.
The difference between genuine pearls and Akoya pearls
There is no difference between genuine pearls and Akoya pearls. Akoya pearls are a type of genuine pearl and are harvested from Akoya oysters.
Genuine pearls is a broad concept that includes Akoya pearls as well as other types of pearls such as South Sea pearls and freshwater pearls.
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Representative types of genuine pearls
There are three main types of pearls:
- Akoya pearls
- White South Sea Pearl
- Black pearl
There are many different types of pearls, each with different characteristics.
Here we will explain the major types of genuine pearls. Please refer to this if you would like to know more about genuine pearls.
Akoya pearls
Akoya pearls, grown in the waters of Japan, are known as the epitome of genuine pearls. They are generally 6-8mm in size and come in a variety of colors, from white to pink and silver.
Characterized by their uniform roundness and delicate shine, they are widely used for a variety of occasions, from ceremonial ceremonies to everyday use. Japanese-made ceremonies are particularly high quality and are highly regarded around the world.
White South Sea Pearl
White South Sea pearls, also known as South Sea pearls, are large pearls harvested from white-lipped oysters. They are mainly produced in the warm waters of Australia, Indonesia, the Philippines, Myanmar, and other places.
South Sea pearls are larger than Akoya pearls, with most over 10mm in size. They come in a variety of colors, including white, silver, gold, and cream.
Silver-lipped oysters produce white pearls, while gold-lipped oysters produce golden pearls.
Black pearl
Black pearls are harvested from black-lipped oysters cultivated in Tahiti and other places in the South Pacific. They come in a variety of colors, including black, green, gray, and red.
Among them, the peacock green color, which resembles a peacock's feathers, is considered to be highly rare. They are generally around 10 mm in size.
The shapes are diverse, including not only perfect circles but also drop and baroque shapes, and they are popular as jewelry with unique designs.
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Factors that determine the value of genuine pearls
The value of a pearl is determined mainly by the following factors:
- Luster and luster: thickness of nacre, shine from within, transparency of surface
- Shape and size: Roundness, size, surface defects, overall balance
- Color: Ideal colors for each type
- Origin: Differences in quality and characteristics depending on the place of production
A comprehensive assessment of all these factors determines the value of a pearl, so it is important to check each factor carefully when making a purchase.
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How to distinguish between real and fake pearls
There are four ways to distinguish between real pearls and fake pearls:
- Surface texture
- Hole condition
- Weight
- Reaction under black light
There are many different types of pearls on the market, including many imitation pearls that are made to look just like the real thing.
Here we will explain how to distinguish between real pearls and fake pearls. If you are worried that your pearl may be fake, please try this out.
Surface texture
Genuine pearls have fine bumps on their surface, which makes them feel slightly rough to the touch, whereas fake pearls are artificially created and have a smooth, uniform surface, which makes them feel slippery to the touch.
To distinguish real pearls from fakes, try rubbing two pearls together, but be careful not to scratch the pearls.
In addition, it may be difficult to judge based on surface texture alone, so it is recommended to combine it with other methods of identification to make a comprehensive judgment.
Hole condition
Genuine pearls have a hard layer called nacre, which allows the cut surface to be smooth and beautiful when drilled.
On the other hand, fake pearls may have peeling paint or uneven areas around the hole , making rough workmanship obvious.
Weight
Genuine pearls have a nucleus inside and are formed by layers of nacre, so they feel just the right weight when you hold them in your hand.
However, plastic pearls and cotton pearls feel light when held in the hand because the core material is light.
Reaction under black light
Genuine pearls contain organic substances during the process of formation inside the oyster's body, so they emit a bluish-white fluorescence when exposed to a black light. On the other hand, fake pearls are made of synthetic resin, so they do not fluoresce even when exposed to a black light.
Black lights are readily available online or at hardware stores. By shining a black light on the pearls in a dark room, you can check for fluorescent reactions.
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Maintenance and precautions for genuine pearls
Proper care is essential to keep your pearls beautiful for a long time. After use, always wipe them with a soft cloth and store them in a special case. Avoid direct contact with cosmetics and perfumes, and we recommend having them professionally cleaned once a year .
Regular thread changing is also an important part of maintenance.
When purchasing, it is important to choose a size that suits your purpose and quality that fits your budget, and to check the warranty and appraisal certificate from a reliable dealer.
Genuine pearls are precious gems that can be passed down from generation to generation, and with proper selection and care, they will retain their beautiful shine for a long time.
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Summary: Find the right genuine pearls to last a lifetime
Genuine pearls are the most representative of sea-grown pearls and are loved around the world for their elegant brilliance and value. Each type, such as Akoya pearls, South Sea pearls, and black South Sea pearls, has its own unique beauty and can be selected according to the purpose.
When purchasing, it is important to carefully check the quality standards such as luster, roll, shape, size, etc., and to choose a reliable retailer. Also, with proper maintenance, it will become a valuable treasure that can be handed down for generations.
Genuine pearls can be worn for a wide range of occasions, from everyday wear to formal occasions, and their deep shine will add elegance and glamour to the wearer.