Nice​ ​Diamond​ ร้านเพชร ไนซ์ไดมอนด์ ดิโอลด์สยามพลาซ่า

Shopping · Phra Nakhon

The Old Siam Plaza, ชั้น 1 Tri Phet Rd, Wang Burapha Phirom, Phra Nakhon, Bangkok 10200

Rated 5/5 from 662 reviews.

Data checked on 12 June 2026.

The Old Siam Plaza location is the central advantage here. Walk several serious dealers without leaving the building and return to Nice Diamond with genuine market context after checking the competition. Useful for buyers who want to do proper due diligence before committing to any purchase of meaningful size and value.

Nice Diamond is a gemstone shop in the Wang Burapha Phirom area of Phra Nakhon. The shop operates inside The Old Siam Plaza within the Old Siam-Ban Mo trading zone. This is Bangkok's oldest dedicated jewellery market complex and one of the most concentrated in the entire region. The building positions buyers between Yaowarat gold traders and the diamond dealers on Ban Mo Road. That location gives access to wholesale-level pricing and a high density of specialist knowledge within a compact area. Nice Diamond focuses primarily on diamonds across a range of cuts and carat weights. Finished rings and pendant styles sit alongside loose stones available for custom pairing on-site. Customers can select a stone in-store and have a setting made at the shop within an agreed timeline. Staff are comfortable working in both Thai and English. They handle buyers arriving with precise specifications as well as those needing clear guidance from the beginning of the process through to completion.

The Old Siam Plaza format provides a direct competitive advantage over standalone shops anywhere in the city. Multiple specialist dealers share one roof, making it possible to compare several options during a single visit without walking far. Coming back to Nice Diamond after reviewing other dealers in the building is quick and straightforward. That transparency holds pricing honest across the full complex. Local buyers return to this shop for resizing and repairs following their original purchase. Repeat business at this level reflects trust that is genuinely difficult to earn in a district with this many competing specialists.