d43ae596_mstone_Information___Ruby_Mill__Yes
[Alexandrite] Sapphire [Chrysoberyl] Corundum [Excellent] Excellent [Yes_4] Yes Use a commercial jewellery cleaner or a mild soap and water solution and clean with a soft toothbrush.. Be aware of surface filling treatments, they may be effected by chemicals and ultrasonics (as with ruby). Most teated sapphires are colour stable, except yellow and orange irradiated stones, they may fade in strong light. [Yes] 
Yes
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Y e s U n l e s s c o a t e d
Gemstone Care - Gemstone Information - Ruby Mill
Yes