Focusing on jewelry craftsmen with a career spanning more than 30 years, We think we are the best in Japan. Started "RENSHI", a custom-made service for wedding rings.

～Aiming for "high quality and reasonable price" and "improvement of craftsmen's status".

2023.09.28 09:30

RENSHI

On September 1, 2023, "RENSHI," a service that offers custom-made forged wedding rings with no design restrictions, was launched by jewelry craftsmen active in Okachimachi, the largest jewelry town in Japan, with a career spanning more than 30 years.

RENSHI" URL: https://renshi.jp/

RENSHI

■The Light and Dark Side of Wedding Rings

Of all types of jewelry, the wedding ring is the one that will be with you for the longest period of time.

However, in my long career as a craftsman, I have learned that there are good rings and bad rings. Unfortunately, there are many wedding rings on the market that are easily deformed or distorted, and it is said that about half of all people will experience deformation of their wedding rings. The biggest cause of deformation is that there is a strength problem from the beginning.

■ Characteristics of RENSHI

RENSHI is characterized by "craftsmanship," "forged-to-order with no design restrictions," "high quality at a reasonable price," and "Japanese spirit.

Forged-to-order with no design restrictions

■Quality wedding rings

At RENSHI, we only make wedding rings of high quality. The quality of wedding rings is "strength and durability", "comfort", and "material".

*Security in Strength and Durability "Reliable Dimensions

Most wedding rings that deform are thin and thin. In order to cut costs, the amount of material used is reduced, and rings are made without regard to strength. For example, rings that are less than 2.0mm wide and 1.5mm thick. It is important to make rings with firm dimensions.

Forging Method" for Strength and Durability

There are two ways to make rings: casting, in which molten metal is poured into a mold, and forging, in which the metal is directly beaten and forged. Forging produces stronger rings, but because it requires a high level of craftsmanship and is not suitable for mass production, only a few stores do it. At RENSHI, all wedding rings are forged.

Also, many stores that do custom-made by forging have design restrictions, but at RENSHI, there are no design restrictions.

Smooth and comfortable to wear based on a clear theory

There is a clear theory behind rings that are comfortable to wear: roundness and firmness of the inside.

Comfortable to wear is not a matter of course. It is necessary to carefully assess it.

*Careful selection of materials

Platinum and gold are popular for wedding rings, but there is more to them than just color differences. For example, even platinum varies in purity and composition. Some are recommended and some are not. You need to be very selective.

Forging Process

■Reasonable price

RENSHI does not receive profit from the cost of materials. We receive only the labor cost. The material cost is calculated by adopting the bullion market price of the day as it is for the weight required to make a ring. This is why our prices are so reasonable. You may think that this is price destruction.

Reasons for the low prices

Due to the aging and decreasing number of craftsmen, Japanese jewelry craftsmen are in such a state that they can be said to be an endangered species. The young generation is not growing at all. We are running out of time to bring Japanese technology to you. This is true not only for jewelry but also for many other industries. Under such circumstances, we wanted to bring Japanese technology to as many people as possible.

*We don't sell our technology cheaply.

We are by no means selling at a discount. Rather, our craftsmen's wages are higher than those of general jewelry stores. High quality at a reasonable price" and "improvement of craftsmen's status" are the two worldviews we aim for.

The thoughts of our craftsmen

We are clumsy craftsmen. We will only share with you what we really know to be true.

We want to deliver a solid wedding ring, regardless of how expensive or inexpensive it is.

That is our desire.

About RENSHI

Trade name : RENSHI

Representative ： Eiichi Kuniyoshi

Location ： Eguchi Bldg. 4F, 3-19-6 Ueno, Taito-ku, Tokyo 110-0005, Japan

Access ： 2 minutes walk from "Okachimachi" station on JR Yamanote line

Hours of operation ： By appointment only

Telephone number ： 03-3834-0603

E-mail address ： contact@renshi.jp