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Diamonds, high quality coloured stones, unique pieces creations, come and discover the BenGems universe and enjoy the short distribution channel from producer to consumer.

Très bons contacts et disponibilité !

Founded in 1988 in Geneva, NGSA specializes in the field of prestigious numismatics. In over 35 years of business, we have built up an international clientele through our expertise and the organization of auctions. We are a benchmark in the field of collector coins. NGSA’s team is renowned for its reliability, speed and availability, and has also won the trust of numerous banking institutions in Switzerland and abroad. Today, our company is a key player in the market. For any evaluation, appraisal or offer to buy or sell coins, medals, our team is at your entire disposal.

Our company led by Enrico F. Sbrizzai, serves the high-end property market for the entire canton of Graubünden with a focus on the Engadine region. The office in St Moritz builds on the already strong presence of Sotheby's International Realty. As Sotheby’s International Realty, we have devoted ourselves to finding extraordinary properties to suit those with an extraordinary lifestyle. St. Moritz Sotheby's International Realty has been your reliable, fair and competent partner for real estate in the Engadine for 7 years. We combine local market knowledge and worldwide exposure. Our network includes over 1000 offices in more than 70 countries. Immerse yourself in the world of Sotheby's. We look forward to getting to know you and making your own dream come true.

Wir haben kompetente Beratung, freundlicher Umgang und äusserst sorgfältige Behandlung unserer zum Teil wertvollen Teppiche erfahren. Ein sehr alter Teppich, den wir glaubten entsorgen zu müssen, kam in neuem Glanz zurück zu uns. Er sah aus als hätten wir ihn neu aus dem Teppichgeschäft. Wir sind begeistert und können das Teppichatelier Meyer-Müller sehr empfehlen.