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Article: Which Gemstones Change Color?

Which Gemstones Change Color?

Which Gemstones Change Color?

Color-changing gemstones captivate us with their magical ability to alter hue. When we expose these rare stones to different types of light, they undergo an enchanting transformation right before our eyes.

In this guide, we explore popular color-changing gems like alexandrite, sapphire, garnet, and andesine. We discover what makes each stone unique. We learn why these minerals can morph their appearance from one vivid color to another.

Whether you collect gemstones, design jewelry, or simply appreciate natural wonders, you will value this tour of color-shifting stones. We will unravel the science of their dazzling metamorphosis. And we will reveal where in the world miners unearth these prized chameleonic treasures.

Join us as we uncover the spellbinding secrets of alexandrite, sapphire, garnet, andesine and other gemstones that flaunt their changeable colors. Allow them to captivate you with their rainbow magic!

Alexandrite - The Quintessential Color Changing Gemstone

Alexandrite is a renowned color-changing gemstone and one of the most highly valued. It displays a vivid green color under natural light and transforms into a deep red under artificial light. This beautiful gemstone, often referred to as "emerald by day, ruby by night," is a classic example of a stone that changes color based on its surroundings.

Color Change Sapphire - A Durable and Valuable Gemstone

Color change sapphire is a highly prized gemstone known for its durability and value. This mesmerizing gemstone exhibits a remarkable shift in color under different lighting conditions, making it a captivating choice for jewelry enthusiasts and collectors alike.

The color change in sapphire is truly fascinating, as it can transition from blue to red, red to brown, blue to violet, and even green to red. The intensity and range of colors displayed by color-changing sapphires vary, contributing to their individuality and desirability.

Natural color-changing sapphires are rare and highly sought-after due to their unique color transformations. These gems are formed under specific conditions that result in the presence of trace elements, which interact with light to create the striking color change effect.

color change sapphire 

The Value of Color Change Sapphire

The value of color change sapphire is determined by various factors, including the intensity and contrast of color, as well as the size and quality of the gemstone. The most prized color change sapphires exhibit a noticeable and distinct transition from one color to another, such as a vivid blue shifting to a rich red.

In addition to the uniqueness and rarity of color change sapphires, their durability adds to their desirability. Sapphire is one of the hardest gemstones, ranking 9 on the Mohs scale. This exceptional hardness ensures that color change sapphires can withstand everyday wear and tear, making them a wise investment for jewelry lovers.

Color Change Sapphire - A Delightful Visual Experience

Witnessing the color change in sapphire is a delightful visual experience. Whether you're admiring the vibrant blue hue in natural daylight or marveling at the deep red tones indoors, the transformation of color in these gemstones is truly mesmerizing.

To highlight the captivating effect of color change sapphires, here is a table showcasing the various color transitions exhibited by these extraordinary gemstones:

Color Change Transition
Blue to Red The sapphire shifts from a cool blue shade to a vibrant red hue.
Red to Brown The sapphire transforms from a rich red color to a warm, earthy brown.
Blue to Violet The sapphire changes from a captivating blue shade to a stunning violet hue.
Green to Red The sapphire transitions from a vibrant green to a striking red color.

The remarkable color change displayed by these sapphires adds a touch of uniqueness to any piece of jewelry they adorn. Whether set in a ring, pendant, or earrings, color change sapphires are sure to captivate and awe those who appreciate their beauty.

Mesmerizing Color Change Garnet

Color change garnet is a captivating gemstone with a range of color variations. It can transition from reddish brown to reddish purple or bluish-green to purple, depending on the light source. The color change in garnets can be subtle or more pronounced, adding to the unique beauty of these gemstones.

Color change garnets belong to the garnet family, which includes a variety of gemstones known for their rich colors and exceptional clarity. However, what sets color change garnets apart is their ability to exhibit different hues under various lighting conditions.

This mesmerizing gemstone captures the imagination with its ability to transform from warm, reddish-brown tones to intense shades of reddish-purple, reminiscent of the twilight sky. This change in color is most apparent when the stone is viewed in incandescent light or under low-light conditions.

color-change garnet

Another remarkable aspect of color change garnets is their ability to shift from bluish-green to deep purple. This stunning transformation is best observed in daylight or under fluorescent lighting, where the stone's true hues come to life.

The shift in color exhibited by color change garnets is a result of a unique combination of elements within the gemstone's crystal structure. The presence of trace minerals and specific optical properties allow for the absorption and reflection of different light wavelengths, resulting in the mesmerizing color changes.

The rarity and beauty of color change garnets make them highly sought after by gemstone enthusiasts and collectors. Their ability to showcase a wide range of colors adds versatility to jewelry designs and makes them a perfect choice for those seeking something truly unique and extraordinary.

Andesine - A Unique Color Changing Stone

Andesine is a remarkable stone that typically appears in shades of red, green, and yellow. This vibrant gemstone exhibits a captivating color change, transforming from green under natural light to a reddish orange or purple/violet under incandescent light. The mesmerizing color transformation of andesine doesn't stop there; it can also shift between shades of green and violet or purple, adding depth and intrigue to its allure.

Andesine's ability to transition from red to green and green to violet or purple makes it a sought-after gem among collectors and jewelry enthusiasts. Its striking color change captures the imagination and creates a visually stunning effect.

Take a closer look at the enchanting color-changing properties of andesine:

  • Shifts from green under natural light to a reddish orange or purple/violet under incandescent light.
  • Can also change between shades of green and violet or purple.
  • Appears in a range of enticing colors, including red, green, and yellow.

The Stunning Color Change of Diaspore (Zultanite)

Diaspore, also known as Zultanite, is a gemstone that exhibits a strong pleochroism, showing different colors from different angles. The most common color change in Zultanite is from yellow or green to red or reddish brown. This rare and beautiful stone offers a unique play of colors that make it a sought-after gem for jewelry collectors.

One of the fascinating aspects of Zultanite is its pleochroism, which refers to its ability to display different colors depending on the viewing angle. When light interacts with Zultanite, it reveals splendid hues of yellow or green, which can transform into captivating shades of red or reddish brown. This mesmerizing color change effect is truly stunning and adds a touch of magic to any piece of jewelry.

Zultanite's color-changing properties are due to the presence of manganese and minor chromium impurities in its crystal structure. These impurities interact with light to produce the striking color transformations that make Zultanite so captivating. The gemstone's unique ability to change from yellow or green to red or reddish brown sets it apart from other color-changing gemstones.


Zultanite's rare and exceptional color-changing qualities make it highly sought after among gemstone enthusiasts and collectors. Its exquisite beauty and versatility allow it to be incorporated into a variety of jewelry designs, such as rings, earrings, and pendants. Whether showcased as a centerpiece or complemented by other gemstones, Zultanite's color-changing nature creates an enchanting visual experience.

The Value of Zultanite

Zultanite is considered one of the more valuable and rare gemstones due to its exceptional color-changing properties. Its scarcity, combined with its unique play of colors, contributes to its high market demand.

The value of Zultanite is influenced by factors such as size, color intensity, clarity, and the presence of any inclusions. Larger stones with a more dramatic color change are typically more valuable.

Buying and Caring for Zultanite

When purchasing Zultanite, it is essential to buy from reputable sources that can provide certification of authenticity. Due to its rarity, Zultanite is often sold at premium prices. Additionally, it is crucial to understand how to care for and clean Zultanite to maintain its brilliance and color- changing properties.

Avoid exposing the gemstone to harsh chemicals or abrasive materials, and store it separately from other jewelry to prevent scratches.

Advantages of Zultanite Disadvantages of Zultanite
Exquisite color-changing properties Rarity makes it more expensive
Unique and versatile gemstone Requires proper care for longevity
High market demand Availability may be limited

The value and beauty of Zultanite, combined with its versatility, ensure that it remains an enchanting and coveted gemstone in the world of color-changing gemstones.

The Vivid Color Variation of Fluorite

Fluorite is a popular mineral collector's gemstone due to its vibrant hues and strong color zoning. This mineral, commonly known as fluorspar, is highly valued for its diverse spectrum of colors and optical qualities. While not all fluorite stones change color, some can shift from blue to purple or violet, adding to their attractiveness.

One of the fascinating characteristics of fluorite is its ability to exhibit color zoning. This phenomenon occurs when different colors are present in different zones or bands within a single crystal. The color zoning in fluorite is often caused by variations in the mineral's chemical composition or the presence of impurities. The distinct bands of color can enhance the visual appeal of fluorite specimens, making them highly prized by collectors.

The Vivid Color Variation of Fluorite

The Dullness Effect of Excessive Light

It's important to note that fluorite is light-sensitive and has a tendency to dull when exposed to excessive light for prolonged periods. This is especially true for specimens with vibrant colors, including those that exhibit the blue to purple or violet color change. To preserve the beauty of fluorite, it is recommended to store it in a dark and cool environment when not being admired.

Color Description
Blue A translucent to transparent bluish hue
Purple A rich violet shade with depth and intensity
Violet A pale purple color with a subtle touch of blue

The mesmerizing color variation of fluorite, along with its unique optical properties, makes it a captivating gemstone for both collectors and jewelry designers. Whether displayed as a specimen or set into a piece of jewelry, fluorite's vivid colors and remarkable color change are sure to leave a lasting impression.

Spinel - A Durable Gemstone with Subtle Color Changes

Spinel is a durable gemstone highly valued for its intense colors and remarkable durability. While spinel is not typically known for its dramatic color changes, some spinel stones exhibit subtle variations in hue. These color transformations can range from a shift from blue to a shade of purple to a shift from blue to a dull red. These slight shifts in color add a touch of uniqueness to spinel gemstones, making them even more prized by collectors and jewelry enthusiasts.

It's important to note that large sizes of color-changing spinel are rare to find, adding to their exclusivity and desirability. Whether set in a ring, pendant, or earrings, the subtle color changes of spinel create an intriguing and ever-changing visual display, captivating those who appreciate the beauty of this fascinating gemstone.


The Replication of Gemstone Color Change in Glass/CZ

In the world of gemstones, color change effects can also be replicated in man-made glass or CZ (cubic zirconia) stones. These synthetic alternatives can mimic the color change of certain gemstones, such as alexandrite.

Color change CZ often imitates the green to red shift of alexandrite, while color change glass can create a similar effect. These affordable alternatives allow more people to enjoy the beauty of color-changing gemstones.

Gemstone Color Changing Effect Replication in Glass/CZ
Alexandrite Green to red Color change CZ imitates the green to red shift of alexandrite.
Color change glass can create a similar effect.

These synthetic alternatives provide an accessible way for jewelry enthusiasts to experience the enchanting color-changing phenomena seen in natural gemstones.

While they may not possess the same rarity or value as their natural counterparts, color change glass and CZ offer a budget-friendly option for those who appreciate the beauty of mimicking alexandrite and other color-changing gemstones.

cubic zirconia

Zultanite - A Unique and Limitless Color Changing Gemstone

Zultanite, also known as color-changing diaspore, is a genuine one-of-a-kind gemstone with a diverse variety of color variations. Its colors can range from kiwi greens to canary yellows in direct sunlight, to rich champagnes in artificial lighting, and to raspberry hues in candlelight. The color variation of Zultanite is not confined to two primary colors, making it a versatile gemstone that complements a variety of complexions and styles. The color change is increasingly noticeable as the size of the Zultanite increases.

If you're drawn to gemstones with varying hues and fascinating transformations, Zultanite is a must-have addition to your collection. This gemstone will never fail to attract your attention due to its extraordinary ability to change colors depending on the lighting conditions.

Unique Color Range of Zultanite

The color range of Zultanite is extensive, offering a diverse palette that captivates those who appreciate color-changing gemstones. Here are some of the mesmerizing hues that can be observed in Zultanite:

  • Kiwi Green: Under natural sunlight, Zultanite displays stunning shades of green reminiscent of fresh kiwis.
  • Canary Yellow: As the lighting conditions transition to brighter indoor lighting, Zultanite takes on a vibrant canary yellow color.
  • Rich Champagne: In ambient indoor lighting, Zultanite showcases warm and inviting champagne hues.
  • Raspberry: When illuminated by candlelight, Zultanite transforms into radiant raspberry tones, creating a romantic atmosphere.

With its wide range of hues, Zultanite is a gemstone that effortlessly complements different skin tones and jewelry designs. Its versatility makes it an ideal choice for those seeking a gemstone that can adapt to various occasions and outfits.

Light-Sensitive Beauty

Zultanite's remarkable color-changing properties can be attributed to its light sensitivity. The gemstone responds to different light sources and environments, transforming its colors accordingly.

By understanding the light-sensitivity of Zultanite, you can appreciate the enchanting dance of colors it showcases. Whether you're strolling under the sun's rays, basking in the glow of indoor lighting, or enjoying the warm ambiance of candlelight, Zultanite's captivating color changes will continuously fascinate and inspire you.


Gemstones that change color are truly rare and captivating. From the renowned alexandrite to the unique and versatile Zultanite, these gemstones offer a mesmerizing visual experience. Each stone possesses its own distinct color-changing properties, creating a beautiful and ever-changing display of colors.

Exploring these gemstones with color-changing properties is a journey that inspires awe and appreciation for the wonders of nature. Whether you're a collector or a jewelry enthusiast, the captivating color transformations of these gems will leave you spellbound.

The allure of gemstones that change color lies in their ability to transform and adapt to different lighting conditions. Such gems offer a dynamic and fascinating alternative to traditional static-colored stones, adding an extra dimension of beauty to jewelry designs.


Which gemstones change color?

Gemstones that change color include alexandrite, color change sapphire, color change garnet, andesine, diaspore (Zultanite), fluorite, spinel, and certain man-made alternatives like color change glass and CZ.

What determines the color change in gemstones?

The color change in gemstones is typically influenced by the lighting conditions and the specific mineral composition of the stone.

Which gemstone is known as "emerald by day, ruby by night"?

Alexandrite is often referred to as "emerald by day, ruby by night" because it appears green under natural light and transforms into a deep red under artificial light.

What color changes can be observed in color change sapphires?

Color change sapphires can transition from blue to red, red to brown, blue to violet, and green to red.

What are the color variations in color change garnets?

Color change garnets can transition from reddish brown to reddish purple or bluish-green to purple, depending on the light source.

How does andesine change color?

Andesine can shift from green under natural light to a reddish orange or purple/violet under incandescent light. It can also change between green and violet or purple.

What is the color change observed in diaspore (Zultanite)?

Diaspore, also known as Zultanite, can change color from yellow or green to red or reddish brown.

Can fluorite exhibit color-changing properties?

While not all fluorite stones exhibit color-changing properties, some can transition from blue to purple or violet.

What color changes can be seen in spinel?

Some spinel stones can shift from blue to a shade of purple or dull red.

Are there synthetic alternatives that replicate gemstone color change?

Yes, man-made alternatives like color change glass and CZ can mimic the color change of certain gemstones, such as alexandrite.