Ruby is the birthstone of the month of July. Enhancements Ruby is usually heat treated to improve color and appearance. Surface cavities and fractures are commonly filled with a foreign material, including glass. As a by-product of heat treatment, the presence of solidified borax or similar colorless substances which are visible under 10x magnification are common. More information on gemstone enhancements.
Prices are subject to change without notice.
Actual carat weight may vary from the average carat weight listed. AA Medium dark, clean, pinkish-red, good cut, good polish. A Medium color, clean, pinkish-red, good cut, good polish. All rights reserved.