Preserve Your Pearls for Generations

Pearls are resilient and meant to be worn, but they are also delicate and require proper care. Use the following guidelines to enjoy your Mikimoto pearl necklaces, rings, and earrings and protect them for generations to come. When in doubt about any aspect of care, take your pearls to an authorized Mikimoto dealer.

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Daily Care

Pearls are organic gemstones that are vulnerable to acid, alkaline and extremes of humidity. To preserve your pearls' radiance, avoid letting them come into contact with cosmetics, hair spray, or perfume. Always put on your jewelry as a final touch, after applying make-up and styling hair. The pearl's luster can also be harmed by perspiration. To prevent this, before returning your pearls to the jewelry box, wipe them gently with a soft cloth.

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Personal Storage

Pearls are exceptionally cohesive and shock-resistant, but may be scratched by contact with sharp objects or other gemstones. To prevent tangles and scratches, fasten clasps and pins, then lay each item out separately in a compartmentalized jewelry box. When carrying jewelry, use a protective jewelry pouch. Leaving pearl jewelry in a security box for long periods may cause pearls to dehydrate, so enjoy them frequently. There is a saying that "pearls want to be worn," and it is true!

Pearl Maintenance

Even with the best of care, small parts of jewelry may come loose. Before wearing, carefully check such parts as the prongs that support the jewels, the clasps of necklaces, the screws of earrings and brooch pins. Mikimoto cultured pearl necklaces are strung with the finest silk thread for both strength and beauty. However, if that string stretches or loosens, it may break suddenly. Even if you don't wear your pearls often, we recommend that you have your pearls restrung every year.

Pearl Wearing

Be careful not to dip pearl strands in water or wear them while bathing, as water can weaken the silk thread. It's also best to avoid direct sunlight or high temperatures such as in a sauna. If pearls come into contact with substances such as vinegar, fruit juices or detergents, immediately wipe clean with a soft cloth. Following these simple guidelines should preserve your Mikimoto pearls for generations.

Pearl Cleaning

If the radiance of your jewelry appears to be diminishing, take it to a specialist. Ultrasonic cleanser should never be used with pearl jewelry as it can damage the pearls.

Pearl Terms

Woman Silhouette
Pearl Choker

About 16". Worn for both formal and casual occasions.

Pearl Princess

About 18". The most popular length, it is a longer version of the choker.

Pearl Matinee

About 22". The usual length for daytime wear.

Pearl Opera

About 30-32". The preferred length for formal wear; often in two strands.


Single Row

Several cut stones of the same size lined up next to each other without separation.


Gems of the same cut and size wrapped around the entire circumference of the ring to symbolize eternal love. Rings with a half circle of stones are called 'half eternity' rings.


An elegant setting of one single gem.


Designs that dangle below the earlobe

Hoop Type

A circular design, going from front to back of the earlobe.


A metal fitting holds the earring in place by gently pinching the earlobe.


The part of a pierced earring that goes into the earlobe.


The metal fitting that secures the post of a pierced earring.


A screw-like fitting with a threaded post and an earback that turns onto the post to close.

Spring ring

A round-shaped lock at one end of a chain. The chain is closed by inserting the tag inside the lock.

Chain Tag

Inserted into the spring ring lock to close the chain.

Lobster Claw

Similar to spring ring lock but with an elongated shape.


A brooch with decorations on the face of a long pin, held with a fitting on the underside.

Pini Brooch

An ornamented brooch held in place by a pin, a catch and a joint hinge.


A round or elliptical bracelet, rigid in structure, that slips onto the wrist without a clasp.

Prong Setting

A technique for setting jewels; small wire prongs hold stones in place.

Bezel Setting

Setting jewels by surrounding them with a thin, flat piece of metal.


A technique that sets small cut stones between two strips of metal.

Pavé Setting

Involves placing stones known as melee up against one another like paving stones, held in place by “beads” of metal.

Mille Grain

Using a chisel to produce continuous fine granular relief patterns on the edge of the base metal.

Open work

Creating a pattern by inserting openings with a jeweler's saw.

Matte finish

Finishing the surface of a metal for a soft rather than bright luster.