Company Profile

Company Overview

Company Name: Sigma Co Ltd

Head Office: 〒110-0005 KDX Okachimachi Building 7th Floor, 5-24-16 Ueno, Taito-ku, Tokyo, Japan | Google Map

Established: 2019

Business Activities:

- Purchasing and selling luxury goods, precious metals, and gemstones

- Operating a curated vintage item select shop

- Auction consignment services

- Corporate purchasing services

- Support for organizing belongings and estate liquidation

License Information:

Tokyo Metropolitan Public Safety Commission Permit No. 741121000614

Our Mission

Connecting Value to the Future

Sigma Corporation cherishes luxury goods, precious metals, and gemstones that have been loved across generations, creating new value through careful handling. We aim to provide trustworthy transactions for every customer and contribute to a more sustainable society.

100% Authenticity Guarantee

Every item undergoes rigorous checks by professional appraisers to ensure authenticity. If an item is found to be counterfeit, we guarantee a full refund.

Sustainable Choice

Choosing vintage items helps promote environmentally friendly fashion and contributes to sustainability.

Customer Support

Contact Information:

Email: info@sigma-collective.com.

Phone : +81 70-3304-2101

Return & Refund Policy:

To ensure your peace of mind, we provide a straightforward return process. For details, please refer to our [Return Policy].

Secure Shipping

Shipping Areas: please refer to our [Shipping Policy].

Shipping Fees: Free or fixed rates depending on your desired shipping methods.

Delivery Time: Shipping withing 1 business day. Typically complete deliver 7–14 business days after order confirmation

Social Media

Instagram: https://www.instagram.com/sigma_collective_tokyo/