






【COLLECTIBLE】"Umihotaru" Akoya Pearl (No.PU58340)
Jewelry with a screw structure that allows you to interchange the pearl and base parts
<COLLECTIBLE PEARL>
The pearls have been processed with K18 screw-receiving fittings embedded in them.
Please enjoy the various colors, shapes, and individual characteristics of each pearl to the fullest with your favorite base parts.
COLLECTIBLE PEARL is placed in a specimen bottle and comes with a polishing cloth and a certificate of authenticity.
◆Please choose the base parts here.
◆You can view the production story here.
【Pearl Details】
PQ (PRECIOUS PEARL QUALITY)
| NUMBER: PU58340 | ORIGIN: Tsushima, Japan |
| SHAPE: Baroque | SIZE: approx. 8-9 mm |
| COLOR: Blue | GRADE [Luster]: Thick |
| GRADE [Luster]: AAA | GRADE [Scratches]: AAA |
・For information on pearl quality and grades, please check the Our Pearls page. ・For details on Akoya pearl colors and processing, please see here. ・The appearance of pearls varies depending on the environment (location and light source). The color description is an approximate expression based on sCenes' perception. ・Pearl sizes vary slightly depending on where they are measured. ・The pearls are fitted with K18YG screw-receiving parts.
A beautiful pair with a drop-like form.
With a moderate volume of 8–9 mm, the fittings on the rounded side emphasize the swaying silhouette, subtly catching the eye in your outfit.
The refreshing turquoise color gently reveals rainbow-like interference colors depending on the angle, creating an impressive translucent luster.
In addition to hook-type earrings, we also recommend enjoying the unique possibilities of a pair, such as separating them into rings or charms.
※What is Umihotaru?
Natural-colored blue baroque Akoya pearls cultivated by one of Japan's leading pearl farms, which has been operating in Tsushima, Nagasaki Prefecture for 120 years.
Only pearls with a mystical blue that seems to reflect the sea of Tsushima are named "Umihotaru" and certified as a single pearl BRAND.
The beautiful interference colors of Akoya pearls are created when organic components of the shell enter the nacre layer.
Natural-colored blue is an accidental color, so it is rare and extremely precious for it to appear beautifully covering the entire pearl.
Natural-colored blue Akoya pearls are said to be prone to color changes, but "Umihotaru" are pearls with a thick nacre layer and deep color, and they undergo a preservation process under a strict management system to prevent color changes.
Those who purchase them will receive a card proving that they are Umihotaru.
You can view an interview article with Umihotaru producers here.
【Dedicated Parts】※Dedicated parts are sold separately. Dedicated parts are here
We offer dedicated rings and earrings made of K18 Yellow Gold or Pt900 that can attach COLLECTIBLE PEARL.
A collection of unique, beautiful, and valuable pearls offered in screw-type jewelry.
The screw structure allows you to freely combine and enjoy pearls with various base parts such as earrings and rings.
【Nickel-Free】

The fittings (K18, PT900) are "nickel-free," made without any nickel, which is known to cause metal allergies.
※This does not guarantee that everyone will be free from metal allergies (allergy-free). If you experience any skin abnormalities, discontinue use immediately and consult a specialist.
【Handling of Screw Parts】

This product has a "loosening prevention treatment" applied to the screw threads of the screw parts.
※Some parts are untreated.
This treatment involves coating the screw threads with a thin, flexible film to suppress screw loosening caused by vibration through friction.
However, since it does not lock them, the screws may still loosen depending on how you use them.
For greater peace of mind, please make sure the screws are securely fastened before wearing them, and check occasionally while wearing them to see if they have loosened.
This product uses K18 or Pt900.
Because they are not as hard as materials such as iron, the screw parts may wear down or become damaged depending on how they are used.
Please use them carefully so that too much force is not applied vertically when tightening the screws.
If the screw parts deteriorate to the point where they become difficult to use, please contact us, and we will offer repairs or a remake proposal so that you can use them as a different piece of jewelry.
Please contact us via the contact page on our website.
【Precautions】
・When cleaning the metal parts, please be careful not to touch the screw parts or pearls while polishing.
・Pearls may change color or crack if left in a hot and humid environment for an extended period. Please always store them in a place away from sunlight.
・Pearls are soft gemstones that are prone to scratches. Please store them in a case and in a separate place away from other accessories.
*Each pearl sometimes has blemishes and flaws on the surface which actually indicate that a pearl is authentic. *For any enquiries and further information about our products, please do not hesitate to contact us before the purchase. *The pearls and jewelries on the image may slightly differ from their actual color, texture and design due to the display resolution on different devices.