KARATZ custom-made jewelry

Jewelry with gemstones as the main focus

KARATZ is home to a large collection of unique and attractive gemstones purchased by gemologists from all over the world.

Only KARATZ can make
We hope that by creating your own original jewelry, you will be able to enjoy gemstones more closely.

Custom-made products made by trusted craftsmen

Because it is a one-of-a-kind custom-made piece of jewelry,
I want to create something that I can truly be satisfied with.
Can this stone be made into jewelry?
Will this colour combination suit me?
If you have such concerns,
Please feel free to contact KARATZ.

KARATZ delivers approximately 500 pieces of custom-made jewelry per year.
Our qualified jewelry coordinators and jewelry designers, who are well-versed in the characteristics of stones, will be happy to answer any questions you may have.
The products are made by skilled Japanese craftsmen.
We carefully craft each piece of jewelry, starting with the stone setting, to match the individual characteristics of the gemstone.

Ordering is easy in 4 steps

Add the gemstones you want to make into jewelry to your cart

Add the custom order application page to your cart

Order jewelry and custom order page at the same time

Delivery will take approximately 6 to 8 weeks

In addition to ordering from the Caratz Store, we also accept orders at events such as pop-up stores. Please see here for important information and FAQs.

Three types of order plans

At KARATZ, we offer three types of custom-made plans: simple, semi-order, and full order.
Please choose according to your taste and budget. All prices include tax.

ring
Pendant Top
Earrings
option

Each plan

Simple Order

【design】

All 3 types

【price】

¥44,800～¥98,000

[Side stone]

none

[How to fasten]

Prong setting, bezel setting, milgrain*
For more information, please click here
Semi-custom

【design】

Over 17 types + limited time slots

【price】

¥49,800～¥148,000

[Side stone]

Diamond (VS to SI class colorless)
Colored Stones *
*Some designs do not have side stones.

[How to fasten]

Prong setting, bezel setting * , milled finish *
*For some designs, you cannot choose the fastening method.
For more information, please click here
Fully customizable

We will create a design from scratch based on your image.
For more information, please contact us via the chat in the bottom right.
We have a track record of 100 full-order orders in the past.
You can view our production examples here . We hope they will be helpful when considering your options.

Common Specifications

【material】

Pt900, Pt950

K18 *Please choose from the following three types.
YG (Yellow Gold)
PG (pink gold)
WG (White Gold)*
[Loose stone (gemstone) size]

Pinky ring: up to 0.3ct Ring: up to 2.0ct *If the size is larger than the above, an optional fee * will be charged.
[Ring size]

Pinky ring: -3.0 to 6 sizes Ring: 8 to 15 sizes *Made in 0.5 size increments.
*If the size is larger than the above, an optional fee * will be charged.
[Delivery days]

Approximately 6 to 8 weeks *Processing/shipping is closed on Saturdays, Sundays, and holidays.

* Additional fees may apply. For details, please see the options table or the custom order page for each design.

What is the semi-order limited time frame?
The semi-custom plan offers limited-time designs that can be purchased on Instagram Live or in pop-up stores.
Please contact us via the chat in the bottom right corner to inquire about the limited slots currently available for order.

design

Solo

¥69,800

Vivace

¥74,800

Pomme Blanche

¥84,800

Ainsel

¥148,000

View all designs

Ring production examples

Amabile

Legato

Bizarro

Dolce

View other production examples

For design consultations and estimates, please use the chat on the bottom right.
Please feel free to contact us.