Chiang Mai - When it comes to gemstone people often ask me, what constitutes a perfect one? How do jewelers value them? To answer this we have to broaden our visitors' perspective about these minerals. Let's start by: there is no universal perfect gemstone.
"This small, specialized shop has been in business for 20 years (in 1993 - ed.) and has built up an unchallenged reputation for reliability, expertise, and good value. If the owner, Mr. Nasser, is behind the counter or at work in his office workroom, you're in luck - you won't find a more knowledgeable gems expert in Chiang Mai." source»