Color change sapphire

Natural color change sapphire is a precious gemstone, belonging to the corundum family, which is composed of aluminium oxide (Al2O3). This rare and captivating gem possesses the ability to change color under different lighting conditions, making it highly desirable among gemstone enthusiasts and collectors.

Buy natural sapphire in our shop

Color Change Sapphire

The color change sapphire is typically blue but can display a wide variety of other colors, including yellow, purple, orange, and green. There are also parti sapphires, which show two or more colors within the same stone, adding to their unique charm. The only color that sapphire cannot be is red; red corundum is classified as ruby, which is another member of the corundum family.

In certain cases, pink-colored corundum may be classified either as ruby or as sapphire, depending on the geographical location and cultural context. The variety of colors seen in sapphires is attributed to the presence of trace elements such as iron, titanium, chromium, copper, or magnesium.

Natural color change sapphires are most commonly cut and polished as gemstones and set into jewelry. Their durability and striking colors make them perfect for all types of jewelry pieces. Beyond being used as decorative gemstones, synthetic sapphires are often created for industrial or decorative purposes. These synthetic versions can be produced in large crystal boules and possess the same hardness as natural sapphires.

Sapphires are rated 9 on the Mohs scale of hardness, making them the second hardest natural mineral, only surpassed by diamonds, which score a 10. This exceptional hardness allows sapphires to be used in various non-ornamental applications, such as infrared optical components, high-durability windows, wristwatch crystals, and movement bearings. They are even used in electronics, specifically as the insulating substrates for specialized solid-state electronics.

Color Change Phenomenon

The color change phenomenon is one of the rarest and most intriguing optical effects that a gemstone can exhibit. Unlike pleochroism, which is dependent on the viewing angle, color change is influenced by the type of light under which the gemstone is observed.

With color change sapphires, the gemstone can display different colors when viewed under varying types of light, such as daylight or incandescent light. This is possible because certain gemstones have multiple light transmission windows, which enables them to exhibit this unusual phenomenon. For example, a gemstone that absorbs all frequencies of light except for blue and red will appear blue when the light is rich in blue wavelengths, and will appear red when exposed to light that has more red wavelengths.

While alexandrite is the most well-known color change gemstone, the phenomenon can also be observed in rare specimens of sapphire, garnet, and diaspore (also known as zultanite).

Lab-Created Color Change Sapphire

Lab-created color change sapphires are categorized as synthetic corundums. These synthetic sapphires are produced using a method called flame fusion. While they may have the same chemical composition and physical properties as natural sapphires, lab-created sapphires are much more affordable and readily available compared to their natural counterparts.

Natural color change sapphire rough from Madagascar

Frequently Asked Questions (FAQ)

What Is the Value of a Color Change Sapphire?

The value of color change sapphires can vary greatly, depending on several factors such as the degree of color change, color intensity, stone clarity, cut, and weight. Current prices range from $500 to $100,000 on our site. The 4 Cs—color, clarity, cut, and carat weight—are key factors in determining the value of any sapphire.

What Color of Sapphire Is the Most Expensive?

In terms of color, pure blue sapphires are the most highly prized and, therefore, tend to be the most expensive. One of the most renowned types of blue sapphire is the Kashmir sapphire, which is famed for its rich, velvety blue color, often described as “blue velvet.” These stones are highly sought after by collectors and gemstone enthusiasts.

How Can You Tell If a Color Change Sapphire Is Lab-Created?

To determine if a color change sapphire is natural or lab-created, you can use a magnifying glass or a jeweler’s loupe to examine the stone for impurities and flaws. Natural sapphires often contain small inclusions or specks, which are a clear indication of their natural origin. On the other hand, lab-created sapphires are typically flawless, as they are produced under controlled conditions.

Are Lab-Created Color Change Sapphires Valuable?

Lab-created color change sapphires are generally less expensive compared to natural sapphires. Natural sapphires are rare and require extensive mining efforts, which adds to their high price. In contrast, lab-created sapphires are easier to produce and are therefore more affordable. However, lab-created sapphires still possess the same physical and chemical properties as natural sapphires, making them a great alternative for those seeking an affordable yet beautiful gemstone.

Are Lab-Created White Sapphires Durable?

In terms of durability, lab-created white sapphires are quite similar to lab-created diamonds. Sapphires are known to develop a frosty appearance over time as their facets wear down, whereas lab-created diamonds remain bright and clear. In terms of clarity, diamonds are rated higher than sapphires, but lab-created white sapphires are still considered very durable and suitable for daily wear.

Natural Sapphire for Sale in Our Gem Shop

We create custom-made sapphire jewelry, including engagement rings, necklaces, stud earrings, bracelets, and pendants. If you are interested in purchasing a unique piece of sapphire jewelry, please contact us for a quote.