Ocean gemstones - Unique Gems Found In Waters

Posted on July 18th, 2025 11:33 AM

The ocean is more than just a large stretch of blue water; it is a living, breathing treasure trove. Not only are there creatures, but there are also jewels, that is, gemstones, under its waves.   

These ocean gemstones are not only rare and beautiful but also full of tales of how artful nature can be. Whether they are the marvel of organic life found in oceans or the mineral marvels discarded by long-lost rivers into the seabeds, ocean gems present an ever-changing mixture of beauty, mystery and primordial force.  

And now we will explore these six miraculous gems of the ocean, which are created in the water or occur in this phenomenon. Let's continue finding out what is so outstanding about these sea gems, and learn here what gemstones you can find in the ocean: 

Diamond: The Deep Sea Resident

Yes, most of you dont know that diamonds, too,  are water gems.   

Although diamond mining is strongly linked with earth-based mining, very few people know that Marine diamonds are actually being actively dug out of the seabed, especially along the shores of Namibia. The origins of these diamonds go back to the depths of the Earth's mantle, which are washed by rivers (such as the Orange River) to the sea, and accumulate in seabed sediments over millions of years.  

What is special about marine diamonds?   

They undergo a natural filtering process in the rushing water; so, the strongest, best stones are left. Indeed, more than 90 per cent of the marine diamonds are gem-grade as opposed to less than 60 per cent of diamonds extracted on land. These ocean diamonds are a witness to perseverance, forged in fire and refined by the water.  

Also Read - lab-grown diamonds vs traditional diamonds - which is better?

Pearl - Nature’s Oceanic Alchemy 

The ultimate ocean gemstone is the pearl, also known as Moti Ratans  

Pearls are organic gems that are created inside the molluscs or oysters, and mussels found in the ocean. Once an irritant gets inside the shell, the mollusc produces layers of nacre, and with time, a pearl stone is created.  

Pearls can be found in salt water or fresh water in every colour and size, hence their value differs too. The South Sea and Akoya oyster pearls, as well as saltwater pearls, are highly desired because of their large sizes and dazzling look. They grow slowly and carefully--an alchemy of biology and time.  

These gems represent not only the beautiful jewels, but also wisdom, purity and emotional level-headedness. They all bring the rhythm of the sea in the iridescent shine.  

Read More - Why Pearl Jewelry Is the Secret Beauty Weapon of Every Woman

Pearl Stone

The Green Flame - Peridot

The beryl-group gemstone, Peridot stone , is a vibrant green gem. It is the birthstone of the month of August and is formed of the mineral olivine   

Most of the peridot is mined on dry land, but it has also been found on oceanic crust, especially in rocks such as basalt and peridotite, which are components of the ocean floor.  

Peridot may also be gleaned on rare occasions on beaches along the volcanic islands where eruptions have made the mantle matter surface. It is on land and in water, and thus this presence serves as a connection between fire and water; it is a gemstone that is also of volcanic heat, and yet, it is touched by the wave.  

More to Know - astrological benefits of Peridot stone .

Red Coral - The Living Gem of the Deep

In comparison to other mineral gemstones, red coral stone is an organic gem, which is composed of coral colonies by coral polyps, which are small animals living in the seas. These organisms build calcium carbonate skeletons, which create coral reefs. Red coral is made of the hard skeletons of deep-sea corals cut up to form pieces of jewellery .  

Red coral, found in the Mediterranean Sea, Japan and certain areas in India, has a revered place in astrology as well as in healing aspects. With a reddish shade, astrologically, it means vitality, protection and courage. Since it is a living entity, it is important in its moral sourcing and preservation as it maintains its elegance and ecological purpose.  

Know More - How Does The Red Coral Stone Bring Luck and Prosperity?

Contemporary Classy Red Coral Ring

Contemporary Classy Red Coral Ring

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The Ornamental Asscher Red Coral Ring

The Ornamental Asscher Red Coral Ring

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The Shimmering pearl gold ring

The Shimmering pearl gold ring

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The Exquisite pearl gold ring

The Exquisite pearl gold ring

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Ocean Jasper

The ocean jasper is a unique gemstone and one of the most beautiful gems since it is located mostly on the Madagascar coastline. The major peculiarity is the place where it is located; it can be found only during low tide, as the deposits are enclosed in rocks washed by the ocean.  

Made out of volcanic ash and silica, ocean jasper exhibits spiralling lines that are green, pink and white and red. Its round-like patterns are comparable to those of underwater corals, so it is very popular with both collectors and healers.  

It is commonly referred to as the Atlantis Stone with its mystical nature and calming energy. It is a jewel that takes the boom of the water and the artistry of the Earth.

Calcite and Aragonite: The Seashell Skeleton

Both calcite and aragonite are crystalline forms of calcium carbonate (CaCO 3), or in other words, the same material that forms coral skeletons and seashells. These minerals are present in the bones of sea creatures, and eventually they end up settled in the layers of the oceans to create gemstones.  

Chemically, the same, calcite and aragonite are not similar in their crystal form, properties, and look. The aragonite usually grows soft and needle-like crystals, whereas the calcite is more solid and colourful. These minerals are essential to the ocean’s ecosystem and are used to make jewelry, for healing, or even in architecture.

Final Thought 

Gemstones found in the ocean are more than just a geological peculiarity; they are a cosmic symbol of change, formed with the efforts of time, tide and elements. They can be the products of sea life, or they may be washed away by the ancient rivers to the bottom of the ocean, but each gem has its own history that links us with the depths and mystics of the ocean.  

Whether they are durable as marine diamonds, or finely textured as pearl and coral stone , these items will draw us into understanding not only the beauty of these items, but of the ecology and the history in which they were created.  

Buy your ocean gemstone now, original and authentic, from Navratan , an online gem bazaar, where all the gemstones are lab-certified. You can also get your gem jewellery customised with us. 

FAQs

Ques. Which gemstone is found in the ocean?

Ans. Pearls and red corals are the most loved gemstones, which are found in the ocean.   

Ques. What is the rarest gem in the ocean?

Ans. A gemstone called Larimar is the rarest gem found in the ocean. 

Ques. Is coral a gemstone from the ocean?

Ans. Yes, coral gemstones are from the ocean.

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