Natural-colored blue baroque Akoya pearls cultivated by one of Japan's leading farmers, which has been in business for 120 years in Tsushima, Nagasaki Prefecture.
Only pearls with a mysterious blue that seems to reflect the sea of Tsushima are named "Umihotaru" and are certified as a single pearl BRAND.

The beautiful interference color of Akoya pearls is created when organic components of the shell enter the nacre layer.
Natural blue color is an accidental color, so it is rare and very precious to appear beautifully covering the entire pearl.

Natural-colored blue Akoya pearls are said to be prone to color changes, but "Umihotaru" isa pearl that has a thick nacre layer and a deep color, and undergoes a storage process under a solid management system to prevent color changes.

Those who purchase it will receive a card proving that it is Umihotaru.
You can view the interview article of the Umihotaru producer here.

The metal parts (K18, PT900) are "nickel-free," made without any nickel, which is prone to causing metal allergies.

※This does not guarantee that everyone will not have a metal allergy reaction (allergy-free). If you feel any abnormality on your skin, please stop using it immediately and consult a specialist.

This product has a "loosening prevention process" applied to the screw thread part of the screw parts.
※Some parts are unprocessed
It is a process that coats a thin, elastic film on the screw thread part to suppress the loosening of the screw due to vibration through friction.
However, since it does not lock it, depending on the usage situation, there is a possibility that the screw may loosen.
When using, please wear it after firmly tightening the screw, and check occasionally during wear whether it has loosened to use it more safely.

This product uses K18 or Pt900.
Compared to materials such as iron, it is not very hard, so depending on the usage situation, the screw part may wear out or break.
Please use it carefully so that too much force is not applied up and down when turning the screw.
If it becomes difficult to use due to deterioration of the screw part, if you contact us, we will propose a repair or a remake plan that can be used as a different piece of jewelry.
Please contact us from the contact page of the website.

・When cleaning the metal parts, please be careful not to touch the screw part or the pearl and polish it.
・If the pearl is placed in a high-temperature and humid environment for a long time, it may change color or crack. Please be sure to store it in a place where sunlight does not reach.
・Pearls are soft gemstones that are prone to scratches. Please put them in a case and store them in a separate place so that they do not touch other accessories.