






【COLLECTIBLE】"Umihotaru" Akoya Pearl (No. SU58309)
Jewelry allowing pearls and base parts to be interchanged using a screw mechanism.
<COLLECTIBLE PEARL>
An K18 threaded component is embedded in the pearls.
Enjoy the unique character of each pearl, with its various colors and shapes, to the fullest with your preferred base parts.
COLLECTIBLE PEARL comes in a specimen bottle, and we include a cleaning cloth and a certificate of authenticity.
◆Please choose your base parts here.
◆You can view the production story here.
【Pearl Details】
SQ (SPECIAL PEARL QUALITY)
| NUMBER: SU58309 | ORIGIN: Tsushima, Japan |
| SHAPE: Baroque | SIZE: approx.8-9mm |
| COLOR: Gray, Pink | GRADE [Nacre Thickness]: Thick |
| GRADE [Luster]: AA | GRADE [Blemishes]: AA |
・For information on pearl quality and grading, please check the Our Pearls page. ・For details on Akoya pearl colors and processing, click here. ・The appearance of pearls varies depending on the environment (location and light source). Color indications are approximate representations based on sCenes' perception. ・Pearl sizes vary slightly depending on the measurement position. ・Pearls are fitted with K18YG screw receiver parts.
Umichotaru (sea firefly) with a strong gray, blue-gray base color, and a faint pink interference color on the surface.
Its form is characterized by a "pecky" protrusion, like a small bird's beak when viewed from the side.
The distortion of the baroque style makes this a charming pearl.
It seems to go well with stud earrings and ring base parts, allowing for a uniquely beautiful coordination.
※What is Umichotaru (sea firefly)?
Natural color blue baroque Akoya pearls cultivated by one of Japan's leading pearl farmers, who have been in business for 120 years in Tsushima, Nagasaki Prefecture.
Only pearls with a mysterious blue color, as if reflecting the sea of Tsushima, are named "Umichotaru" and certified as a pearl brand.
The beautiful interference color of Akoya pearls is created when organic components from the shell enter the nacre layer.
Natural blue colors appear incidentally, so it is rare and very valuable for them to beautifully cover the entire pearl.
Natural blue Akoya pearls are said to be prone to color changes, but "Umichotaru" pearls have a thick nacre layer and a deep color, and have undergone a preservation process under strict management to prevent color changes.
Customers who purchase these pearls will receive a card certifying them as Umichotaru.
You can read an interview with the producers of Umichotaru here.
【Dedicated Parts】※Dedicated parts are sold separately. Dedicated parts can be found here
We offer dedicated rings and earrings in K18 Yellow Gold or Pt900 to which COLLECTIBLE PEARL can be attached.
A collection offering unique and valuable pearls in screw-type jewelry.
The screw structure allows for a free combination of pearls and various base parts like earrings and rings.
【Nickel-Free】

The metal fittings (K18, PT900) are "nickel-free," made without any nickel, which is a common cause of metal allergies.
※This does not guarantee that no one will experience a metal allergy reaction (allergy-free). If you experience any skin irritation, please stop using the product immediately and consult a medical specialist.
【Handling of Screw Parts】

This product features an "anti-loosening treatment" on the threads of the screw parts.
※Some parts are untreated
By coating the threaded part with a thin, elastic film, this treatment suppresses screw loosening due to vibrations through friction.
However, it does not lock the screw, so loosening may still occur depending on the usage situation.
When using, please ensure the screw is securely tightened before wearing, and periodically check for any loosening while wearing to ensure safer use.
This product uses K18 or Pt900.
Compared to materials like iron, its hardness is lower, so the screw part may wear out or break depending on usage conditions.
Please use carefully to avoid applying excessive upward or downward force when screwing it on.
Should the screw part deteriorate to the point where use becomes difficult, please contact us for repair or a proposal for remaking it into a different piece of jewelry.
Please contact us via the contact page on our website.
【Precautions】
・When cleaning the metal parts, be careful not to touch the screw part or the pearl.
・Pearls may change color or crack if left in a high-temperature and humid environment for an extended period. Always store them in a place not exposed to direct sunlight.
・Pearls are soft gems and are easily scratched. Store them in a case separately from other accessories to prevent contact.
*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.