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Free upgrade with coupon code [ pt950ring] for all Pt900 rings

From Yamanashi Prefecture, the “City of Jewels” to everyone in the world.

Many people are familiar with jewelry from Yamanashi Prefecture, but its history dates back to the 1860s during the Meiji era. Yamanashi Prefecture is surrounded 360 degrees by mountains.

During the Sino-Japanese War of 1937, the company began to produce crystal oscillators, insulators, lenses, and other military-use abrasive products.In 1946, after the war, the company began processing and producing crystals for jewelry. . Since then, the company has gradually expanded into the processing and production of various imported gemstones and precious metals.

Due to the accumulation of such advanced jewelry processing technology, jewelers from all over the world began to gather in Yamanashi Prefecture, and Yamanashi has transformed into what we know today as the "City of Jewels."

The founder of our store entered the jewelry industry in Yamanashi Prefecture in the 1970s and has continued to operate mainly as a wholesaler to major retailers throughout Japan.
From the 2010s, we will start an online shop that can sell directly to customers. Taking advantage of the online shop's characteristics of being able to sell without intermediaries, we have delivered high-quality, low-priced jewelry to customers all over Japan.

In 2023, we would like to make more customers happy, and we would like them to know the technology and sense that have been cultivated in this land for a long time. We have opened our online shop.

"Town of Jewels" Yamanashi Prefecture

Yamanashi Prefecture is known as the “City of Jewels” where jewelers from all over the world gather. We offer high-quality, low-priced jewelry that takes advantage of the characteristics of an online shop that can be sold without intermediaries.

High technology and craftsmanship

From the 1860s to the present, the craftsmanship and sense of craftsmanship that has been accumulated in this land.
All of our jewelry is handcrafted one by one by highly skilled craftsmen.

A number of high-quality gemstones

Yamanashi Prefecture, where jewelers from all over the world gather, offers a variety of high-quality jewels.
In addition, we use only gemstones that have cleared strict standards by discerning craftsmen.

About metal materials

At our store, you can choose from a total of 4 materials: Pt900, which is a rare precious metal, 18K white gold, 18K yellow gold, and 18K pink gold.

All Pt900 rings can be upgraded to "Platinum 950", which is purer and stronger, for free by using the coupon code [pt950ring].

We also accept custom orders such as upgrading and engraving of various gemstones.


Use coupon code WELCOME10 for 10% off your first order.

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