WORKS

The story of a new challenge at a PR company that wants to create “Fun Buzz” with the jewelry studio “MASHIRO,” where you can find one-of-a-kind gems

WRITTEN BY

Kuro(Sale Activation New Business Group MASHIRO Studio Director)

The jewelry studio “MASHIRO,” where you can discover unique gemstones from around the world and create one-of-a-kind custom jewelry online, opened its doors on April 6th this year .

After being open for 8 months, the Instagram account has already gained over 10,000 followers. “MASHIRO” is thrilled to share daily encounters with unique gemstones and deliver one-of-a-kind custom jewelry to our customers.

Why did we choose to focus on an online specialized studio, centered around encounters with gemstones and custom-made jewelry services, rather than expanding as a jewelry brand with pre-made collections?

Furthemore, why are we pursuing this Direct-to-Consumer (D2C) venture as a new challenge within a PR company?

In this article, we will introduce the feelings and reasons behind the establishment of MASHIRO, as well as provide an overview of the services it offers.

What is the jewelry studio MASHIRO?

Jewelry studio MASHIRO is a place where you can:

  1. Discover one-of-a-kind gemstones from around the world.
  2. Curate a collection of these gemstones, and then make custom jewelry from your curated gemstone collection.
  3. Continuously transform your jewelry into new pieces.

    +1:You can achieve all of the above online, anytime, and from anywhere.

MASHIRO is an online jewelry studio. With just a smartphone, you can discover a diverse range of gemstones from around the world, and create jewelry from them, all while continuing to design new pieces.

We believe that everyone should have the opportunity to enjoy the ultimate jewelry experience, which includes the chance to meet the true stars of jewelry, the gemstones.

Encounter one-of-a-kind gemstones from around the world

Enjoy a rich online experience like a gemstone encyclopedia, where you can explore various encounters with gemstones.

Additionally, our Gemstone Encounter Support Program offers a free return guarantee, allowing you to return gemstones for reasons such as personal preferences. You can confidently collect gemstones online with peace of mind.

Gemstones, luxurious and beautiful, are delivered in gift packaging that can be enjoyed as they are or given as presents. Meeting the gemstones that resonate with your heart online becomes an exhilarating experience.

Gemstones have been with people since ancient times, originally holding a close connection with their lives. They served as amulets for safe voyages, a means to convey one’s feelings to someone special, and even for medical and other uses.

For example, the well-known gemstone, Emerald, has been associated with people for 4,000 years. It has been cherished not only as a gemstone but also for its soothing, beautiful green radiance, believed to have a calming effect on the eyes, making it highly valued by artisans.

Jewelry, at its core, is about encountering gemstones and the various ways these gemstones can be utilized.

Once again, we deliver the interaction with gemstones, which is often more exciting and enjoyable than receiving finished jewelry. When we hear “gemstone,” many may naturally think about high prices. However, at MASHIRO, we offer carefully selected gemstones starting from less than 10,000 yen.

Create one-of-a-kind jewelry from the gemstones you’ve collected

You can create a one-of-a-kind custom jewelry piece at any time from the gemstones you’ve collected.

You can also easily create your ideal jewelry online by selecting your preferred design frame, specifying materials, colors, gemstone placement, and more.

When you place an order, you’ll receive our specially developed return kit with free round-trip shipping to your doorstep. Simply place your gemstones inside and return them easily. The kit even includes a tool to measure ring sizes, providing peace of mind even if you’re unsure about sizing.

When your gemstones arrive at MASHIRO, we create a 3D computer-generated image tailored to the gemstones. You can thoroughly review this image in detail using the data, and our skilled artisans in Japan individually handcraft each piece of jewelry. These custom-made jewelry pieces are available starting from the 20,000 yen range.

When it comes to custom-made jewelry, budget constraints can be a concern. However, at MASHIRO, we combine online sales and 3D technology to make it possible to create a one-of-a-kind custom jewelry piece at an approachable price point. Using the same approach, you can also transform finished jewelry into new pieces.

In an era where convenience often takes the lead, we want to deliver opportunities that enrich your life


Why MASHIRO chose to deliver encounters with gemstones and beyond, not as pre-made products or a traditional brand, but as a studio. Lastly, we’ll explain the reasons behind this choice.

There are several reasons for this, but first and foremost, we chose to prioritize the creation of opportunities over creating a brand identity. Rather than aiming to have a global fanbase as a brand, we wanted to assist people in enriching their lifestyles.

In the modern world, convenience has improved at an incredible pace. Fortunately, with a smartphone in hand, we can access nearly everything in our lives from anywhere at any time. Moreover, thanks to mass production, we can purchase reasonably good-quality items at very affordable prices. There are immeasurable benefits to this.

However, on the other hand, it feels like many opportunities for enriching our hearts through spending time and investing money in enjoyable experiences have been lost.

That’s why, at MASHIRO, we thought about creating opportunities to enrich our lives and have fun by utilizing materials such as gemstones and jewelry that may not be necessary in our daily lives but have been intertwined with people’s lives since ancient times.

The opportunity to create a jewelry piece that is unique to you, crafted from a gemstone you personally encountered, is a rich experience. If we can create this opportunity and deliver it to everyone online at an affordable price, it may become a chance for people to rediscover the jewelry that was once a familiar presence. 

Perhaps we can enrich the lifestyles of those who engage with it, even if just a little. That’s the reason behind our thinking.

It’s not about logic, but about the value that fulfills your sensibilities and sensations. The value of something that only you possess. By engaging with things that have value both emotionally and spiritually, we believe that one can lead a richer life or at least become a part of such opportunities.

In fact, the majority of those who follow MASHIRO’s social media were previously unfamiliar with jewelry.

Consumption activities can become even more wonderful when there is not only a direct relationship between people and things but also when there are events or experiences that mediate between them.

MASHIRO will continue to encounter gemstones and create jewelry. With the mission of delivering such rich and wonderful experiences to everyone, we will continue our activities.

At SUNNY SIDE UP, our PR company’s DNA is all about “creating fun buzz.” With MASHIRO, the jewelry studio, we don’t aim to simply sell jewelry, but instead, we want to create a fun buzz in people’s lifestyles by bringing richness.

Next time, I would like to introduce various events and projects that have been sparked by MASHIRO, as well as the experiences of our users.

MASHIRO Official Website:https://mashirojewelry.com/

WRITTEN BY

Kuro(Sale Activation New Business Group MASHIRO Studio Director)

After working for 12 years in an advertising production company, I founded a jewelry brand, serving as the general director and overseeing its growth. I later joined Wise Integration, a subsidiary of SUNNY SIDE UP GROUP, as a business development specialist. After the integration with SSU, I continued my challenge in developing our in-house businesses, serving as the New Business Group Leader and General Director of MASHIRO. My favorite phrase is “The Earth was blue.”

* Affiliation may differ from the time of writing.

  1. HOME
  2. WORKS
  3. The story of a new challenge at a PR company that wants to create “Fun Buzz” with the jewelry studio “MASHIRO,” where you can find one-of-a-kind gems