In this guide, we’ll explore the different types of pearls, how they are formed, and why freshwater pearls are one of the most ethical choices in modern jewellery.
Pearls are one of the most timeless gemstones in jewellery. Unlike other gems that must be mined from the earth, pearls are created naturally by living organisms, making them uniquely organic and beautifully imperfect.
From classic pearl necklaces to modern minimalist designs, pearls have been worn for thousands of years. But not all pearls are the same. Different pearl types vary in origin, shape, and rarity.
Pearls form inside molluscs such as oysters and mussels. When a small irritant enters the shell, the mollusc protects itself by coating the irritant with layers of nacre, a smooth substance also known as mother-of-pearl.
Over time, these layers build up to form a pearl.
Natural pearls occur without human intervention, but they are extremely rare. Today, most pearls used in jewellery are cultured pearls, meaning humans carefully introduce a small nucleus into the mollusc to begin the natural pearl-forming process.
The pearl is still created by the animal itself, layer by layer.
There are several types of cultured pearls used in jewellery today.
Freshwater pearls are grown in freshwater mussels, usually in rivers or lakes. They are the most common pearls used in modern jewellery.
Freshwater pearls are loved for their:
Because one mussel can produce multiple pearls, freshwater pearls are generally considered one of the more sustainable pearl options.
These are the pearls we use in LUCID jewellery.
Akoya pearls are saltwater pearls traditionally grown in Japan and China. They are known for their perfectly round shape and mirror-like shine.
They are often used in classic pearl strands and are considered the traditional “fine jewellery” pearl.
Tahitian pearls are grown in French Polynesia and are famous for their darker colours. These pearls range from deep grey to green, peacock, and black tones.
They are larger and rarer than many other pearl types.
South Sea pearls are among the rarest and most valuable pearls in the world. They are grown in the warm waters of Australia, Indonesia, and the Philippines.
They are known for their large size and soft, satiny glow.
Ethical sourcing is becoming increasingly important in the jewellery industry. While pearls are natural gemstones, the farming process still matters.
Freshwater pearls are often considered one of the more responsible choices because:
Multiple pearls can grow in one mussel
This means fewer molluscs are needed to produce pearls compared with some saltwater varieties.
Pearl farming encourages healthy water ecosystems
Mussels require clean water to survive, so pearl farms often help maintain and protect their aquatic environments.
Minimal environmental impact
Unlike mined gemstones, pearls do not require digging into the earth or heavy industrial extraction.
For these reasons, freshwater pearls are widely regarded as one of the most sustainable natural gemstones available.
One of the reasons we love freshwater pearls is their individuality.
Unlike perfectly uniform pearls, freshwater pearls often have organic shapes and subtle variations, making each piece of jewellery unique.
These natural differences are part of their beauty. No two pearls are exactly the same.
At LUCID, we use cultured freshwater pearls in our jewellery because they combine timeless elegance with a more responsible sourcing approach.
We choose pearls that are:
Rather than traditional heavy pearl strands, we focus on light, contemporary designs that highlight the pearl’s natural shape and glow.
The result is pearl jewellery that feels effortless, modern, and meaningful.
Pearls have been treasured for thousands of years, yet they continue to evolve in modern jewellery design.
Their organic beauty, rich history, and connection to nature make them unlike any other gemstone.
Whether worn as a delicate necklace, a simple pendant, or a modern statement piece, pearls remain one of the most timeless and meaningful materials in jewellery.