Skip to content

18% Off All Necklaces — Shop Now

Jewelry
Find your diamond
Contact Us
About Us
FAQ

Facebook
Instagram

Jewelry
Find your diamond
Contact Us
About Us
FAQ

Search

Loose Diamonds

Company

About Us
About our CEO
Contact Us
FAQ
Warranty
Return Policy
Terms of Use
Privacy Policy

Information

Understading Diamonds
Investing in Diamonds
Lab Grown Diamonds
Necklace Buying Guide
Diamond Shapes: Pros & Cons

Contact

Mon-Fri 9:00-19:00
Sat-Sun: By appointment only
TEL：03-5818-2950
MAIL: admin@weissdiamonds.com
Ueno 5-21-3, Taito-ku, Tokyo, Japan.
サスガ第２ビル 402 (Sasuga Building 2 4th Floor, 402)

Book an appointment or contact us

★★★★★

59 Google Reviews

Subscribe to our emails and get a 5% discount first purchase, news, product launches, and more.

Email

Language

Language

日本語
English

© 2026, weissdiamonds.com

English

Japanese
English

English

Japanese
English

JPY

JPY

JPY

/

English

English

Japanese
English

JPY

JPY

JPY

/

English

Language

English

Japanese
English

Currency

JPY

JPY

Cancel