Shoppers Beware!!! DO NOT go to a jewelry shop called MIN THIHA located at No.2 Pyay Road, 6 mile, 10-quarter, Hiaing township, Yangon, Myanmar (Burma).
Many tour guides bring visitors to purchase rubies and other precious stones and jewelry at this supposed upscale shop. The shop claims that their rubies are stones from Myanmar (Burma) and are natural, non-heat treated stones with no filling. The shop is also willing to provide a receipt to you and put in writing describing the purity of their stones.
HOWEVER, after the purchase of a ruby ring from the shop for about US$1,000.00, I went to Stalwart Gem Laboratory, recommended by the Myanmar Government’s Myanmar Gems Museum to confirm the purity of the ruby. The laboratory results were quick (less than 30 mins) and inexpensive (between US$2.00 – $10.00)
To my disappointment, the Gems Laboratory confirmed that the ruby was actually an African, heat-treated ruby with glass filling that is probably worth about US$2.00!
Based on our journey and experience in Myanmar (Burma), all the rubies are heat-treated and from the Mongshu mine, and not the Mogok mine.