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What are Color-Changing Sapphires?

Color changing sapphires may not be as popular as the blue sapphires or rubies, but they are uniquely captivating and equally precious. Unlike traditional sapphires which are usually in a consistent color, natural color change sapphires change hues depending on the light source they are exposed to.

The science behind this is linked to the sapphire’s crystal structure made of trace elements such as chromium, iron, and vanadium. These elements interact with light in different ways which change the hues of the gemstone. In natural daylight or fluorescent lighting, color changing sapphires usually appear in blue or violet hues, which change to purple, pink or reddish-orange in incandescent or candlelight.

One of the earliest records of color changing sapphires is of the “Le Saphire Merveilleux” gemstone that was at the South Kensington Museum in London. Cherished for their ability to shift from a vibrant blue in daylight to a deep violet under artificial light, these gemstones served as a test of female virtue; the color change supposedly indicated if the wearer was unfaithful to their partners.

Varieties and colors of color changing sapphires

Blue to violet is one of the most common transitions among natural color change sapphires. These gemstones shift from a blue hue under daylight to a violet shade under artificial light. Another common transition is stones with yellow hues shifting to orange in a few hours under incandescent lighting.

While some color changing sapphires have such slight changes, some transition completely. One example is gemstones that appear green-ish under daylight or fluorescent lighting transitioning into a beautiful pink or a reddish-pink under incandescent lighting.

The transitions that are seen in these rare sapphires are similar to the transitions seen in Alexandrite. Like alexandrite, color changing sapphires shift from green-ish hues under daylight to purple-ish or red-ish purple hues under incandescent light. However, Alexandrites are a variety of the chrysoberyl mineral, completely different from color changing sapphires.

Regional differences in color changing sapphires

Depending on the country of origin, the transition styles of these sapphires tend to vary, producing distinctive color changing effects.

The Sri Lankan color changing sapphires usually appear in vivid blues or green hues under natural lighting, which then shift to pink, purple or reddish tones under artificial lighting. Madagascan color changing sapphires are among the most desired color changing sapphires for their intense and vivid color display, and these most commonly change from blue to violet or green to pink. Tanzanian color changing sapphires transition in a variety of stunning interplay. They appear pink-ish brown in daylight and transition to violet-red under incandescent light.

Treatments and Enhancements

How to select the perfect color-changing sapphire

Color change intensity: The intensity of the color change is the most important factor when selecting your perfect sapphire. Gemstones with strong color transitions are rare and also are more valuable.
Clarity and cut: The most common cuts for color change sapphires are oval, cushion, and emerald allowing excellent light reflection on these gemstones. When it comes to clarity, gemstones with eye-clean inclusions are ideal whereas stones with minor inclusions are also considered desirable.
Carat weight and its impact: Usually, larger carat weights are valued for higher prices, however, other factors such as color change intensity and clarity of the gemstone take preference over carat weight.
Natural vs treated stones: Natural gemstones change color organically while treated stones undergo processes to enhance their color and clarity. Unheated and untreated natural gemstones change color with great intensity making them very valuable to enthusiasts.
How lighting affects appearance: These sapphires change colors under different lighting conditions. When choosing your perfect color changing sapphire, test the gemstone under different light sources from daylight to candlelight to determine the full range of transitions.
Certification and authentication: The best way to ensure the authenticity and quality of a color changing sapphire is to obtain one from trusted jewelers with proper certification and authentication. Gemstone certification verifies their characteristics including color, clarity, treatments status among other details so buyers are fully aware of their gemstones.

Symbolism and healing properties of color-changing sapphires

In some cultures, color changing sapphires are believed to bring wisdom, protection, and good fortune to those who wear them. In holistic healing practices, color changing sapphires are closely associated with the throat chakra stimulating clear communication, creativity, and self-confidence.

In astrology, color changing sapphires are the planetary stone of Saturn, which signifies discipline, responsibility, and karma. While sapphires at large are preferred for their aesthetic beauty, such deeper symbolic significance and healing properties associated with these stones make color changing sapphires so much more appealing.

Care tips for color-changing sapphires

Sapphires are very durable gemstones, second only to diamonds. But they still need to be cared for, to maintain its shine and shape. Clean your color changing sapphires using mild soap and warm water, and gently scrub any dirt with a soft brush. Keep your sapphires clear from any harsh chemicals which can damage the sapphire’s surface and affect its color changing properties. Additionally, store your color changing sapphires in a soft pouch or a lined jewelry box to avoid scratches and exposure to dust and moisture. Schedule regular inspections by a professional jeweler to check for any signs of wear or damage to keep your color changing sapphires shining for longer.

FAQ

What Is the Price of a Color Changing Sapphire?

The price of a color-changing sapphire varies widely based on factors like color quality, origin, clarity, and carat weight. These unique gemstones can range from $500 to over $5,000 per carat, depending on the strength of the color change and overall quality. Color Changing Sapphires with a dramatic color shift and high clarity command premium prices. As with all gemstones, certification and verification of the stone’s natural origin can also influence its market value.

How Rare Are Color Changing Sapphires?

Color-changing sapphires are quite rare, making them highly sought after by collectors and gem enthusiasts. These sapphires exhibit a unique phenomenon called “pleochroism,” where the gemstone appears to change color under different lighting conditions. While not as rare as some other gemstones, like Padparadscha sapphires or Kashmir sapphires, color-changing sapphires are still uncommon, particularly those with a strong and noticeable color shift.

Are Color Changing Sapphires Valuable?

Yes, color-changing sapphires are valuable due to their rarity and unique optical properties. The value of these sapphires increases with the strength and distinctness of the color change. Sapphires that exhibit a dramatic shift from one color to another, especially between blue and purple or green and red, are particularly prized. Additionally, factors like origin, clarity, and carat weight also contribute to the overall value of a color-changing sapphire.

What Is the Most Valuable Color Changing Sapphire?

The most valuable color-changing sapphires are those that exhibit a strong, distinct color change, typically between blue and purple or green and red. Sapphires from renowned sources, such as Ceylon (Sri Lanka), with high clarity and minimal inclusions, are especially valuable. Larger stones with these characteristics can command prices well above average market rates. Certification from a recognized gemological laboratory further enhances the value of these rare and exceptional gemstones.

What Is the Difference Between Color Changing Sapphire and Alexandrite?

Color-changing sapphires and Alexandrites both exhibit the ability to change color under different lighting conditions, but they are distinct gemstones. Alexandrite is a variety of chrysoberyl, renowned for its dramatic color change, often shifting from green in daylight to red under incandescent light. Color-changing sapphires, on the other hand, are corundum gemstones that typically change between blue and purple or green and red. While both are rare and valuable, Alexandrite is generally considered rarer and more expensive.