S is for September…and Sapphires

September’s birthstone, the luminous sapphire, checks all of the “s” boxes—sumptuous shade, strength, and stylish star:

• Its sky blue shade ranges from the vibrant hue of mid-day to the rich, navy of the night sky. And, while we think of sapphires as being blue, there can be other colors, as well.
• It’s strong, second only to the diamond in hardness.
• It can contain a “star,” an optical condition called “asterism.” This occurs when light hits needle-like inclusions within the stone, appearing as a multi-pronged star.

Sapphire lore and history

• Ancient Persians believed the earth rested on a giant sapphire, which accounted for the sky being blue.
• Sapphires have been associated with loyalty and dignity and were a favorite gemstone for royalty.
• Healing properties of sapphires are said to include benefits for the throat chakra, and inspiring a calming and balancing effect on the nervous system.

Famous sapphires

• One of the largest sapphires in the world is the Star of India, at 563.35 carats. It has a unique star shape that appears on both sides of the stone.
• Perhaps the most famous sapphire was Princess Di’s engagement ring—a 12-carat gem surrounded by diamonds. The ring was more recently worn by Kate Middleton, Duchess of Cambridge.
• Less famous, but more fun, “Star Sapphire” is the name of a character in DC Comics.

Buying and caring for your sapphire jewelry

According to the GIA, the most highly valued blue sapphires are velvety blue to a violet blue, in medium to medium dark tones, and with strong to vivid saturation. Your sapphire should sparkle, reflecting light evenly across the entire stone.

Before buying a sapphire, always ask it it’s treated, and by which method:

• Most natural sapphires undergo heat treatment to improve their color and clarity. This industry-accepted practice results in a permanent enhancement and helps protect against accidental chipping or breakage.
• While heat treatment is acceptable, filling in fractures and dyeing the stone is not; these treatments can result in stones that are damaged by acidic items like lemon juice.
• In terms of caring for sapphire jewelry, the GIA recommends using warm, soapy water for cleaning. “Ultrasonic and steam cleaners are usually safe for untreated, heat-treated stones. Fracture-filled or dyed stones should only be cleaned with a damp cloth.”

According to legend, Helen of Troy (of Trojan horse fame) had a large star sapphire, which was believed to make her irresistible to men. I can’t promise your sapphire will win you universal devotion, but it will look beautiful around your finger or neck. Be sure to protect your jewelry with an updated appraisal. Just call me at 617-304-0174 or by email at aimee@ambappraisal.com.

Brilliantly yours, Aimee