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 In MARUKAI Wholsale Mart Ehime fair November 6-12 Sales of Pearl jewelry and repair your pearl necklaces #marukaiwholesalemart #marukaihawaii #ehimefair #doipearl #土居真珠 #pearl #repair #pearlnecklace
 今日は少し時化てますが、松山から3つの大学の留学生さんが見学に来ています。皆さん興味しんしんで聞いてくれるので、説明にも熱がはいります。 #土居真珠 #doipearl #真珠養殖場見学 #団体コース #宇和島 #宇和島真珠 #uwajimapearl #uwajima
 Small pearl earrings #pearl #earrings #fishhookearring #akoyapearl #uwajimapearl #kawaii @doipearl
 ナチュラルブルー、セミラウンド3連ネックレス 付属のクラスプを使えばロング、チョーカー、2連などなど色々な使い方が出来ます。 #あこや真珠 #宇和島真珠 #土居真珠 #パールネックレス #パール3連ネックレス #パールロングネックレス #パール2連ネックレス #ナチュラルブルー
 パールピアス8mm 色々な値段帯で揃えています。 来週からは上野松坂屋さん、広島福屋駅前店さんでも販売会が開催されます。 #土居真珠 #大坂なおみ選手おめでとう㊗️ #真珠のピアス似合ってました #多分8mm真珠 #松坂屋上野店 #福屋駅前店 #真珠 #真珠ピアス #あこや真珠
 「パールチップ」の販売を開始しました。 養殖真珠から真珠層だけを取り出すのはとても困難なのですが、愛媛大学との共同研究にて開発、商品化です! 詳しくは公式HPにて! @doipearl #土居真珠 #パールチップ #真珠 #真珠層

The Uwakai Sea is characterized by the deep bay with ria coastline and blessed with abundant nature, and it is also in the most privileged natural environment suitable for pearl farming.
Pearls are cultured by making good use of abundant natural blessings.
Beautiful pearls are produced by our reliable technology and thorough work that has continued three generations.


The process takes about a year. The pearls produced after the processes are called “Tonen-mono (harvested within a year)”.
The pearls harvested in the following year after nurtured in the ocean for another year are called “Koshi-mono (harvested over the year).” “Koshi-mono” stays in the ocean a year longer so that the nacre layer becomes thicker and we tend to get higher quality pearls.
However, the mortality rate of Akoya oysters becomes higher and not all the pearls have higher quality, so in other words, it’s taking a big risk.
Doi Pearl makes an effort to increase the quantity of “Koshi-mono” as much as possible in order to produce higher quality pearls.

About pearl culture How to distinguish pearls


Among those pearls which are known for their extremely high quality from Uwajima, Ehime Prefecture, the pearls that draw people's attention the most are "UBUDAMA." The characteristics of them are their strong brightness that looks as if they were golden jade. Its name originates from its "mother naked" purity and innocent beauty. "UBUDAMA" is the original brand from the long established business, Doi Pearl Co.,Ltd., which has been continuously trading for more than half a century in the home of pearls, Uwajima.



You can learn while actually experiencing the process of making pearls and how to distinguish pearls. We offer two kinds of courses, "Pearl Cultural Experience Tour Normal Course" and "Pearl Culture Experience Tour Souvenirs Course".

About tour


Yang Guifei, one of the three most beautiful women in the world, is to be said she would use pearl power to maintain her beauty. Cleopatra, who is also considered as one of the three most beautiful women in the world, has a legend that she put a pearl in her wine and drank it. There is a legend that pearls have been used for beauty since ancient times.

About Pearl Powder

Miuranishi, Uwajima-shi, Ehime,
798-0102, Japan
Open from 9:00 a.m to 17:00 p.m
(Closed on Sundays)