In order to deliver jewelry and services that satisfy our customers,
Introducing ECRETTE's commitment.


ECRETTE's beautiful and highly complete jewelry is all made in Japan.

Furthermore, even in Kofu, Yamanashi Prefecture, which is the number one jewelry production area in Japan,

Carefully crafted by skilled craftsmen without compromise.

This is because we want to deliver jewelry that will last a lifetime to our customers.

It's also our policy.


4C is an international standard for evaluating the quality of diamonds.

are the four "C's"
Carat, Color, Clarity and Cut determine quality and price.

ECRETTE guarantees quality by GIA (Gemological Institute of America) certified appraisers (GG)

We will deliver it to you.


It is defined as 1.0ct = 0.200g, and the larger this Carat, the higher the rarity value.
* The size of the above chart varies depending on the environment.


Color represents the ground color of the diamond, divided into classes from D to Z,
The more colorless it is, the more valuable it is.
ECRETTE 18-karat gold and platinum products are available only in DF colorless.


A 10x magnifying glass is used to inspect the relative absence of diamond inclusions and blemishes (surface flaws). The less these two are and the higher the transparency, the higher the rarity value.
All ECRETTE products handle only diamonds of VS class or higher.

4. CUT

It is determined by the proportion (ratio) element and the finish element symmetry (symmetry) and polish (polishing). Each of these three elements is represented by EX-POOR, and when all three elements are excellent, it is called triple excellent (3EX)


ECRETTE means "jewelry box" in French "Ecrin"

It is a coined word combining "-ette" which means small.

put it in a little jewel box
I want to be chosen as limited jewelry.

With such a wish,
Cherish minimal possibility and simple universality,

We strive to create designs that bring out the natural beauty of gemstones and bullion.

BRAND MOVIE "What I want to leave behind."





About orders

ECRETTE also takes orders and remodels.

Why do not you make only one jewelry in the world?


1. Contact us

Please use the inquiry form to inquire about an order or renovation, and then enter the item, budget,
Please send us your requests for design, 4C, etc.

2. Meeting

Face-to-face meetings, remote meetings,
We will contact you by e-mail, LINE, etc.
Please let us know what you would like.

3. Quotation

4. Create a design drawing with CAD. *1

5. Issuance of invoice

6. Making jewelry

7. Inspection

8. Delivery

*1 Regarding the CAD production cost, we basically charge a design drawing production cost of about 20,000 yen (excluding tax) to 35,000 yen (excluding tax) per piece of jewelry. Subsequent minor design changes are free of charge, but the same amount of design fee will be charged only if there is a major change that requires re-drawing from scratch. However, as a special offer, the first CAD design fee will be waived for each item.


We provide repairs and aftercare so that you can use ECRETTE products with peace of mind for a long time.

ECRETTE fine jewelry and bridal products

We offer free ring resizing for one year after purchase.
(Limited to products that can be resized.)

We also offer a jewelry polishing service under the same conditions.

We also offer after-sales service for other jewelry.

Please check the following and feel free to contact us using the inquiry form.


Notes ・It usually takes about 3 weeks to 1.5 months for repairs.
・Customers are responsible for shipping costs for repaired products. Regarding the return trip, we will bear the cost.
・Please enclose the warranty card when repairing during the free warranty period of less than one year.
・Please note that we are not responsible for any loss during delivery.
・Depending on the condition of the product, we may not be able to accept repairs.


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