September Birthstone: Sapphire

Blue is a color beloved by many. My passion for the color blue spans a wide range of blue tones, from  light pastel Sweden Princess blues to the rich and velvety Royal Blue sapphires.

To the right is a tone scale for degrees of lightness & darkness. Rather than absolute starting and stopping points, the color groups overlap and can blend into one another.

The shade of navy to many people appears too dark. A simple test is to hold a sapphire at arms length under normal lighting conditions. If it’s difficult to see the blue then it’s too dark. (these darker gems are very common in many stores)


After color, cutting is the most important factor in a colored gem. When discussing cut, I’m not talking about shape (round, oval, etc.), but rather the proportions and angles of a gems facets. Precision cutting brings a sapphire to life. A Royal Blue sapphire poorly cut could be far less valuable than a Prince of Wales sapphire with an excellent cut.  A stone cutter must take great care when selecting sapphires because cutting is important. The cut grade is determined by the brightness and evenness of the gems brilliance. The cut scale is as follows for all faceted gems:

• Excellent
• Very Good
• Good
• Fair
• Poor

A sapphire with a color designation of Royal Blue and a cut grade of Excellent would indicate the gem to be a wonderful medium to medium dark blue with extraordinary brilliance that’s evenly distributed throughout the sapphire.

If you see a sapphire that you like, but would prefer a different shade of blue in the sapphire   I would be happy to work with you to achieve a ring you’ll love.

Sapphire is the second hardest gem after diamond and has long been a popular alternative choice for engagement rings.


Princess Di ring

 the late Princess Diana wearing her 12 carat Ceylon sapphire engagement ring, now worn by Princess Kate



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