Diamond/Color Stone Ring Making Class
- Same-day Delivery
- All-inclusive pricing (course & material)
- Guided by artisans
Add a splash of color to your everyday look by handcrafting a ring in which diamonds, rubies, and sapphires are the stars. Combine colors that are unique to you, and you will end up with a fashionable ring that will dress you up in style. This handmade jewelry course is rare in the world, as you can take it home on the same day of your visit, even after the stones are set. MITUBACI TOKYO, with its own workshop and craftsmen, is proud to offer this course.
MITUBACI’s handmade wedding band workshops are conducted and supported by our veteran artisans who are experienced at crafting custom-made jewelry. Under their thorough guidance, even beginners are able to complete the jewelry-making processes with confidence. Our tanzō forging method adds durability to your jewelry and ensures quality that lasts a lifetime. Moreover, it is an exciting experience to turn precious metals such as platinum (Pt950) and gold (18k) into rings with your own hands!
At MITUBACI, you can personally inscribe your ring for free. We will practice before the actual production, and our craftsmen will help you with any minor modifications. If you are still concernedMachine engraving by engraving machine (free of charge)andOption to engrave with laser machinePlease feel free to contact us for more information.
We also recommend you and your partner exchange making your handmade wedding rings! Not only will you get to make your precious keepsake with each other, but you are also making for each other. Feel free to take photographs and videos to capture the memorable experience!
Customize your jewelry further with your partner's name or birthstone! Sometimes, symbols make one feel closer to the other even when apart.Make your only one in the world handmade wedding rings with us today.
Prices will be revised for new reservations on or after January 15, 2025; for reservations made before the date, items can be made at the prices listed on this page even if your visit is after the revision. Click here to see the price revision.
Add vibrant color to your day!
Under the guidance of a craftsman, the customer himselfPlatinum or K18 goldYou will be asked to produce a ring.The shaping, engraving, welding, and surface finishing are done by the customer's hands under the guidance of a craftsman. The creation of the base and stone setting, which require advanced skills, are done by a skilled craftsman, and the ring is delivered on the same day. We hope that you will enjoy the process of selecting the color of the base metal and the main stone, and shaping the ring with your own hands, as well as the craftsmanship that Japan prides itself on.
Workshop Pricing
The course price includes all costs to complete the ring.
You can also add options as you like for further originality.
GEMSTONE TYPES AND SIZES
Diamond 0.1ct
Diameter 3.0mm
¥154,000 per ring
¥140,000 before tax
A 0.1-carat diamond is an affordable option that makes beautiful, simple, and subtle ring. Despite being on the petite end, its color, clarity, and cut are selected carefully to meet the standards of other diamonds we offer.
Diamond 0.2ct
Diameter 3.8mm
¥198,000 per ring
¥180,000 before tax
A 0.2-carat diamond sufficiently brings out the brilliance of the ring. It acts as an accent to special occasions such as dinners, parties and holidays, and is befitting for everyday wear.
Diamond 0.3ct
Diameter 4.3mm
¥275,000 per ring
¥250,000 before tax
A 0.3-carat diamond, slightly larger and with a broader head, leaves an augmented impression on the finger.
Diamond 0.5ct
Diameter 5.0mm
¥495,000〜 per ring
¥450,000〜 before tax
A 0.5-carat diamond ring is a luxurious choice. This diamond size is a showstopper that fills one with envy.
Ruby
Diameter 3.8mm
¥165,000 per ring
¥150,000 before tax
Ruby is another classic choice for the center stone of an engagement ring. Besides being the birthstone of July, this stone symbolizes lifelong happiness. It is also a gorgeous gem suitable for formal occasions.
Equivalent to a 0.2ct diamond in size.
Sapphire
Diameter 3.8mm
¥165,000 per ring
¥150,000 before tax
Sapphire is another classic choice for the center stone of an engagement ring. It is also a favorite gemstone of the British Royal Family. The beautiful blue gemstone is said to represent love and brings wisdom to the wearer.
Equivalent to a 0.2ct diamond in size.
RING WIDTHS
1.7mm
+¥0
2.0mm
+¥11,000
2.5mm
+¥22,000
3.0mm
+¥38,500
3.5mm
+¥60,500
Enjoy Tax-free Shopping With Us!
Temporary visitors may enjoy tax-free shopping (10%) with us by presenting your original passport on the day of purchase.
Recommended for situations such as the following
As a fashion ring
A gemstone that shines on the finger is a source of courage for its wearer. It can be a reassuring fashion item to dress up more stylishly than usual or a partner to give you confidence in important moments.
As a gift for your partner
This ring, with its universal and simple design that maximizes the brilliance of the stone, is a very welcome item for wedding anniversaries and Christmas. Why not create a romantic and touching gift that is reminiscent of the emotion felt when opening the case of an engagement ring?
As a couple ring
The diamond and colored stone rings in this course can be combined with regular platinum and gold rings to create a pair of rings. The two rings can be created at the same time, creating an unforgettable memory and a ring that will last a lifetime together.
As a reward jewelry for yourself
The universal beauty of diamond rings and colored stone rings makes them the perfect gift for yourself for all your hard work.
PREMIUM QUALITY DIAMONDS
The ring is made of natural diamonds of the same grade used in our custom-made products. 0.1 ct. to 0.3 ct. diamonds are available in F color or better, SI-1 or better, and triple excellent or better. 0.5 ct. and larger diamonds are available in a variety of grades to suit your budget. You can choose the grade according to your budget. A certificate of authenticity is also available as a proof of quality.
There is an international standard for diamonds called the 4Cs, which is an objective way to evaluate diamonds. 4C stands for Carat, Color, Clarity, and Cut.
A carat is a unit of weight of a diamond; one carat is 0.2 grams.
Diamonds are classified between D (colorless) and Z (light yellow); MITUBACI Tokyo offers diamonds with F color or higher, which is classified as "colorless".
Clarity is an evaluation of a diamond's transparency. It is broadly divided into six categories. In descending order of evaluation, they are FL, IF, VVS, VS, SI, and I. They are further divided within each category, comprising a total of 11 grades.
The GIA Diamond Clarity Scale has six categories, some of which are subdivided, totaling to 11 grades.
MITUBACI Tokyo offers diamonds that are SI-1 (inclusions can be seen under 10x magnification) or higher.
Cut is an evaluation of a diamond's balance, symmetry, and polish. While color and clarity are the innate properties of a diamond, cut is an evaluation of the workmanship. The cut is divided into five grades: Excellent, the highest grade available at MITUBACI Tokyo, and Triple Excellent, the highest grade for overall evaluation, symmetry, and polish.
- Diamonds of 0.2 ct. or more come with a certificate of authenticity booklet from the CGI. While diamonds of 0.1 ct. do not come with a certificate of authenticity booklet, a simple certificate of authenticity is available upon request.
- While workshop participants can complete most of the ring-making process by themselves, our artisans will take over the stone setting process as it is more complicated.
- All diamonds provided by MITUBACI Tokyo are natural diamonds.
MATERIALS
Choose your ring from five colors and metal types. Whatever your choice, there is no additional charge!
Design and surface finish
Plain
The mirrored finish is a timeless classic. It may look simple, but a lot of work goes into achieving a beautifully polished look! The sense of satisfaction lies in watching your jewelry shine after repeated sanding and buffing. The color of the gold is emphasized when matted.
Hammered
With reflections like shimmering water surfaces, this is the most popular texture. This texture is created with a round-tipped hammer. Every piece of jewelry has a unique pattern as it is formed depending on how one wields the hammer. A matted hammered surface gives it a subtler appearance.
Foresta
Reminding one of the forests and trees, foresta texture is achieved using a hammer with a flat tip. A wider ring gives a closer resemblance to the tree trunk. Polished or matte, this texture is perfect for those who want a nature theme wedding band.
Snowflake
A texture resembling a snow flurry. This texture is best matched with platinum but also looks glamorous in gold. Choose to polish your ring for an emphasized look or mattify for a gentle glow.
Frost
This texture resembles frost on the window in winter. Achieved using a specially made hammer, every ring with the frost texture is one-of-a-kind as the pattern forms differently in the hands of different people. Keep the surface polished to enhance the texture, and mattify it for a subtle finish.
Stella
Stella means star in Italian, and as its name suggests, this texture resembles the captivating raining stars. Combine it with stones of your choice for an even more personalized look.
ENGRAVING
At MITUBACI TOKYO, you can have your name, anniversary date, etc. engraved by your own hands free of charge. Customers can choose from two types of engraving: "hand engraving," in which the letters are directly stamped with a hammer using an iron stamp, or "machine engraving," in which the letters are slowly engraved using a special machine.
Alternatively, you may opt for laser engraving to include Japanese, Chinese, emojis, or handwritten characters on your jewelry (additional charges will incur).
ADD-ONS
Senban Finishes (Lathe Machine) from +¥5,500
A rounded surface that is easy on the eye.
Referring to “sea” in Italian, mare embodies the pulls of waves.
A protruding edge resembling the peak of a mountain.
Subtle indentation across the center of the ring.
Subtle bead details adorned at the center of the ring.
Bead details bordering the edges of the ring.
* Side Milgrain: Applicable to widths between 2.0 mm - 3.5 mm
Twist Finish +¥5,500
Diamond Add-on from +8,800 yen
Secret Stone +¥8,800
Laser Engraving +3,300 yen
Made by Craftsmen +¥11,000
You can request our skilled artisans to create wedding bands and engagement ring on your behalf for a nominal fee on top of our handmade wedding bands pricing! This service offers high quality wedding bands at reasonable pricing. Your rings will be crafted by professional artisans who deal with made-to-order bridal jewelry on a daily basis. At MITUBACI, we believe that high quality bridal jewelry does not always have to be expensive. Even if you live far away, you may consult in our artisans online!Learn More
Customer Reviews
We are pleased to introduce Mr. and Mrs. K., who had a 0.2 ct. diamond ring and a ring with an emerald clasped to commemorate their anniversary, each made as a couple's ring in K18 pink gold with a frosted pattern.
Complimentary ring gauge rental
For customers who are considering having a ring handcrafted at MITUBACI TOKYO, we offer a free ring gauge that can be used to determine the appropriate ring size. Want to give a ring as a surprise, but don't know the size.... We solve such a problem for you. In the unlikely event that the ring does not fit after it is made, we will re-size the ring free of charge, so you can try it with confidence.
Lifetime Warranty and After-sales Services
MITUBACI TOKYO offers a lifetime warranty service. We provide maintenance for your jewelry for a lifetime so you can wear them with peace of mind. Regardless of handmade jewelry or order-made jewelry, all our jewelry is cared for by our skilled artisans. After-sales services include resizing, cleaning, and polishing to ensure that your MITUBACI jewelry remains beautiful and in mint condition over the years.
Touching Up Surfaces & Cleaning
Free of charge (visit atelier in person)
Our after-sales service covers not only cleaning but also touching up your textures so that they look as good as new. Regular maintenance will enhance the brilliance of your jewelry, so please feel free to make an appointment with us to enjoy these services!
Ring Size Adjustment
1st-time Free of Charge
2nd-time onwards from ¥5,500
The first ring resizing is free of charge! Subsequently, it will be chargeable from ¥5,500 onwards per ring (depending on the condition of your ring).
FAQ
We offer premium diamonds of grade F or more colorless, clarity of SI-1 or better, and triple excellent cut or higher.
Rings made with us can always be cleaned free of charge. First time resizing is also free. The second and subsequent resizing will be chargeable for a basic fee of 5,500 yen per ring.
Yes, you can take it home on the same day. Please note that there is a 1.5 to 2 hour waiting time for add-on options such as stone setting and laser engraving.
Yes, the ring will be delivered with a box.
Yes, it is possible. We can also make a set of rings without diamonds or colored stones and use them as a pair ring. Of course, you can take both rings home with you on the same day.
Although the courses are separated for various occasions, the rings will be of the same design and quality as the engagement ring course. You can rest assured that while the rings are fashionable, they will be fine jewelry of the high quality that only an engagement ring grade can provide.
VISIT US
Before visiting us, please find the easiest route for you!
Tokyu Den-en-toshi line (DT) / Setagaya line (SG)
1-minute walk from Sangenjaya Station
〒154-0024
Tokyo, Setagaya City, Sangenjaya
2 Chome−14−10 #407
JAPAN
- 4 minutes from Shibuya
- 10 minutes from Harajuku and Omotesando
- 20 minutes from Ginza and Roppongi area
