Brand: Backes mueller
Backes Mueller BM18 refers to a gemstone product manufactured by the German company, Backes. "Backes" and "Mueller" are both well-known and respected brands in the world of mineralogy and gemstones. The "BM" in the product name stands for "Blue Max", which is a high-quality blue sapphire mined in Sri Lanka. The BM18 denotes that these sapphires have achieved an exceptional rating of "Blue Max 18" based on a proprietary grading system developed by Backes. In summary, Backes Mueller BM18 is a premium quality blue sapphire gemstone produced by Backes utilizing the expertise of both Backes and Mueller.