Burmese rubies often contain low iron and high chromium, causing them to glow with an intense red fluorescence under UV light, which adds to their "inner fire" even in daylight. 2. Essential Verification & Certification
Most rubies on the market are heat-treated to improve color and clarity. However, unheated Burmese rubies are extremely rare and can command prices up to three times higher than their heated counterparts (e.g., $35,000/ct vs. $12,000/ct for a 2-carat stone).
When browsing online listings, pay close attention to these factors that dictate the substantial price premiums for Burmese stones: