All of our jewelry is crafted using natural diamonds and high-quality metals. We meticulously select metals such as gold and platinum to ensure durability, beauty, and lasting quality in every piece.

{"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"We currently only accept cash payment/bank transfers. As our brand grows we will be implementing other payment methods."}]}]}

Reach us at admin@weissdiamonds.com or 03-5818-2950.

We are open Mon-Fri from 9am to 6pm.

Can I view your diamonds and jewelry in person?

While not mandatory, appointments are recommended for personalized attention. If you wish to come on the same day, please phone us before calling at 03-5818-2950

Absolutely! Our knowledgeable staff is ready to assist you with in-store purchases.

Do you offer custom design consultation in person?

Yes, we provide in-store ring resizing services for all jewelry bought in our store.

Certainly! We offer a lifetime full money buy-back guarantee for a future upgrade (下取り) , terms apply:

The upgrade is at least double the original purchase, Client can provide our original warranty and certificates.   

The item is inspected and matches its original state.    For Flawless or Internally flawless clarities, a new certificate will be needed to prove no blemishes.

For more information:
https://japan-diamond.com/en/pages/our-promise

店頭購入品もオンライン購入品と同じ返品・交換規定が適用されます。

詳しくは、こちらの規定をご参照ください。

お電話 (03-5818-2950)

またはメール (admin@weissdiamonds.com) でお問い合わせください。スタッフが誠意を持って対応いたします。