Rubies are renowned for their captivating and distinct colors. The color of a real ruby is a complex and fascinating aspect that not only determines its aesthetic appeal but also plays a crucial role in establishing its value and quality. In this article, we will explore the various colors that real rubies can exhibit, the factors that influence these colors, and how to distinguish between different shades and hues.
The Classic Red of Rubies
The Spectrum of Ruby Red
The most prized and iconic color of a real ruby is the so-called “pigeon’s blood” red. This shade is a vivid, intense, and pure red with a slight bluish undertone. It is extremely rare and highly sought after in the world of gemstones. For example, rubies from the Mogok region in Myanmar are famous for producing this exquisite color. A ruby with a perfect pigeon’s blood red color can command a very high price in the market due to its exceptional beauty and scarcity.
Dark Red
Dark red rubies are also highly valued. They possess a rich and deep red color that can approach a maroon or burgundy hue. These rubies often have a sense of depth and intensity that makes them stand out. For instance, some Thai rubies may exhibit a darker red color compared to their Burmese counterparts. The darkness of the red can add a touch of mystery and luxury to a piece of jewelry.
Light Red
Light red rubies, on the other hand, have a more delicate and soft appearance. They range from a pale pinkish-red to a light cherry red. While not as rare as the pigeon’s blood or dark red varieties, they still have their own charm. A light red ruby can be used in more feminine and understated jewelry designs, such as a dainty necklace or a pair of earrings. For example, a light red ruby set in a white gold pendant can create a graceful and elegant look.
Color Variations within Red
Tones and Undertones
Real rubies can have different tones and undertones within the red color spectrum. Some may have a warmer, more orangey undertone, while others may have a cooler, bluish undertone. The presence of these undertones can subtly alter the overall appearance of the ruby. For instance, a ruby with a slightly orange undertone might look more vibrant and fiery, while a ruby with a bluish undertone can appear more serene and sophisticated.
Color Zoning
Another characteristic of real rubies is color zoning. This means that the color is not evenly distributed throughout the stone but may be more concentrated in certain areas or form bands or patterns. Color zoning can add a unique and interesting visual effect to the ruby. For example, a ruby with a central core of intense red and a lighter red periphery can create a beautiful contrast and depth.
Influencing Factors on Ruby Color
Chemical Composition
The presence of chromium is the primary factor responsible for the red color of rubies. Chromium ions absorb certain wavelengths of light, resulting in the characteristic red color that we perceive. The more chromium present in the ruby, the more intense the red color is likely to be. However, other trace elements can also interact with chromium and modify the color slightly. For example, a small amount of iron can cause a ruby to have a slightly different shade or undertone.
Other Trace Elements
In addition to chromium, other elements such as titanium, vanadium, and iron can be present in rubies. These elements can have a secondary influence on the color. For instance, vanadium can sometimes enhance the red color and give it a more vivid appearance. The combination of these trace elements in different proportions can lead to the wide variety of red shades and hues that we see in real rubies.
Geological Origins
Myanmar (Burma) Rubies
Rubies from Myanmar are renowned for their exceptional color quality. The Mogok region in particular is famous for producing rubies with the highly prized pigeon’s blood red color. The unique geological conditions in Myanmar, including the presence of specific minerals and the history of tectonic activity, contribute to the formation of these beautiful rubies. The intense heat and pressure in the region during the ruby’s formation process are thought to play a significant role in creating the ideal environment for the development of the vivid red color.
Thai Rubies
Thai rubies often have a darker and sometimes more purplish-red color compared to Burmese rubies. The geological formations in Thailand result in rubies with a different chemical composition and crystal structure, which in turn affects their color. The presence of higher levels of iron in some Thai rubies can give them a darker and more subdued appearance.
Sri Lankan Rubies
Sri Lankan rubies typically have a lighter and more pinkish-red color. The geological context in Sri Lanka, with its own set of minerals and geological processes, leads to the formation of rubies with a distinct color profile. These rubies can have a more delicate and feminine look, making them popular for certain types of jewelry designs.
Other Origins
Rubies are also found in other parts of the world, such as Madagascar, Tanzania, and Kenya. Each of these regions has its own geological characteristics that influence the color of the rubies produced. For example, Madagascar rubies can have a wide range of colors, from a bright red similar to Burmese rubies to a more orangy-red.
Conclusion
The color of real rubies is a complex and multifaceted aspect that encompasses a wide range of red shades, tones, and undertones. It is influenced by chemical composition, geological origins, and plays a crucial role in determining the quality, value, and identification of rubies. From the highly prized pigeon’s blood red to the various darker and lighter reds, each color has its own unique charm and significance in the world of gemstones. Understanding the color of real rubies is essential for jewelers, collectors, and anyone interested in the beauty and value of these precious gemstones.
Related Topics:
