Nata Heng Schluessel, GG logo Roland Schluessel, FGA

About Us

Roland Schluessel
Gem-A Gemologist, FGA. 
Gemologist DGemG

Roland has over 20 years experience in international trade with color gemstones, diamonds, jewelry and their marketing (buyer, wholesaler and retailer). Previously he was head of the jewelry and gemstone department for the largest Swiss jewelry company and member of its board of directors. With extensive experience in the development of jewelry lines and collections as well as their marketing and branding, Roland is the co-inventor of the patented “Dizzler™ collection. He has several awards to his credit:

  • Awarded the Rayner Diploma Prize in 1985 (today: Christie’s Prize for Gemology).
  • Co-winner of the Tahitian Pearl Trophy 2001 in France.

click meAuthor of the
current book
MOGOK – MYANMAR” about Burmese Rubies and Sapphires and unheated versus enhanced Corundum. Publisher: Christian Weise, 2002. Roland has  specialized articles in gemological journals.
(see articles)

With diplomas in economics and management, Roland speaks English, French, German and Italian; with business activities in Europe, Asia, Africa and South-America.

Nata Heng Schluessel
GIA Gemologist, G.G

Nata has over 10 years experience in the international trade with color gemstones and diamonds as a buyer and wholesaler. She has extensive experience in the jewelry industry as a representative for European brand collections and many years experience as a manufacturer and seller of fine single jewelry pieces.

Nata graduated with a Bachelor's of Arts degree in International Affairs, University of Colorado and a graduate gemologist degree from GIA.

Speaks English, French and Cambodian; with business activities in the US, Asia, Japan and Europe.

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