Purple sapphires are a lesser-known type of sapphire that is becoming increasingly popular in jewelry. They are unique and beautiful gemstone that is often overlooked in favor of more traditional gemstones like diamonds or rubies. In this article, we will explore everything you need to know about purple sapphires, including their history, characteristics, types, and how to care for them.

A Brief History of Purple Sapphires in Jewelry

Sapphires have been used in jewelry for thousands of years, with the ancient Persians believing that the sky was made up of one giant sapphire. While blue sapphires are the most well-known type of sapphire, purple sapphires have been used in jewelry for centuries as well. In fact, purple sapphires were once thought to be a type of amethyst and were often referred to as "Oriental amethysts." However, it wasn't until the late 1800s that purple sapphires were recognized as unique gemstones.

Characteristics of Purple Sapphires

Sapphires are a variety of mineral corundum and have a chemical composition of aluminum oxide (Al2O3). They are one of the hardest minerals on Earth, with a score of 9 on the Mohs scale of hardness. This makes them extremely durable and ideal for use in jewelry.

Different Shades of Purple in Sapphires

Purple sapphires come in a variety of shades, from light lilac to deep violet. The color of a sapphire is determined by the presence of trace elements in the crystal structure. In the case of purple sapphires, the color is caused by the presence of iron and titanium. The intensity and hue of the purple color can vary depending on the amount of these trace elements present in the crystal.

How Color is Formed in Sapphires

Sapphires are formed under high pressure and temperature conditions deep within the Earth's crust. The presence of different trace elements in the crystal structure can cause the sapphire to have different colors. For example, the presence of iron can cause sapphires to be blue, while the presence of chromium can cause them to be red.

Types of Purple Sapphires

Natural purple sapphires are the rarest and most valuable type of purple sapphire. They are formed naturally in the Earth's crust and are usually found in countries like Sri Lanka, Madagascar, and Tanzania. They are often cut into traditional shapes like round or oval and can be used in a variety of jewelry designs.

Synthetic Purple Sapphires

Synthetic purple sapphires are created in a laboratory and have the same chemical composition and physical properties as natural sapphires. They are often more affordable than natural sapphires and can be used in a variety of jewelry designs. However, some people prefer natural sapphires because of their rarity and unique characteristics.

Treated Purple Sapphires

Treated purple sapphires are natural sapphires that have been treated to enhance their color or clarity. One common treatment is heat treatment, which can intensify the purple color of the sapphire. Other treatments include diffusion, which involves introducing trace elements into the sapphire to change its color, and irradiation, which can change the color of the sapphire through exposure to radiation.

Buying Purple Sapphires

When buying a purple sapphire, there are several factors to consider. One of the most important factors is the color of the sapphire. Look for a rich, vibrant purple color that is evenly distributed throughout the stone. The cut and clarity of the sapphire are also important, as they can affect the overall appearance and value of the gemstone. It is also important to consider the origin of the sapphire, as natural sapphires from certain countries like Sri Lanka are known for their high quality and rarity.

How to Spot a Fake or Treated Purple Sapphire

It can be difficult to spot a fake or treated purple sapphire, but there are a few things to look out for. One red flag is a sapphire that is being sold at a significantly lower price than other similar stones. Additionally, if a sapphire has a very intense and unnatural color, it may have been treated. It is always a good idea to purchase sapphires from reputable dealers who can provide certification and information about the origin and treatment of the gemstone.

Pricing and Value of Purple Sapphires

The price of a purple sapphire can vary depending on a number of factors, including the size, quality, and origin of the stone. Natural purple sapphires are generally more valuable than synthetic or treated stones. Large, high-quality purple sapphires can be quite expensive, but smaller stones are often more affordable.

What trace minerals give purple sapphire its color?

Purple sapphires get their color from trace amounts of iron and titanium in their crystal structure. These elements interact with the aluminum and oxygen atoms in the sapphire to produce the characteristic purple hue.

The specific combination and concentration of these trace minerals can affect the shade of purple that is produced. For example, higher levels of titanium tend to produce a deeper and more vibrant purple, while more iron can result in a bluish-purple or lavender color.

It is worth noting that not all sapphires contain enough trace minerals to produce a purple color. In fact, the majority of sapphires are blue, with other colors such as pink, yellow, and green also occurring due to different trace mineral compositions.

In some cases, purple sapphires may also exhibit color zoning, which is when different parts of the gemstone have varying shades of purple. This can add to the uniqueness and beauty of the stone, but may also affect its value depending on the overall appearance and the preferences of the buyer.

Overall, the trace minerals of iron and titanium play a crucial role in giving purple sapphires their distinctive color, and the specific composition of these minerals can greatly affect the appearance and value of the gemstone.

Popular Jewelry Styles with Purple Sapphires

Purple sapphires are becoming an increasingly popular choice for engagement rings. They are unique and eye-catching, and can add a pop of color to a traditional engagement ring design. Purple sapphires are often paired with diamonds or other gemstones to create a one-of-a-kind ring.

Earrings and Necklaces with Purple Sapphires

In addition to engagement rings, purple sapphires are also popular in earrings and necklaces. They can be used as a focal point in a piece of jewelry or as an accent stone to complement other gemstones. Purple sapphires are versatile gemstones that can be incorporated into a variety of jewelry styles.

Unique and Creative Ways to Incorporate Purple Sapphires into Jewelry

One unique way to incorporate purple sapphires into jewelry is to use them in a custom-designed piece. A jeweler can work with you to create a one-of-a-kind piece of jewelry that features a purple sapphire as the centerpiece. Additionally, purple sapphires can be used in less traditional jewelry designs, like cufflinks, tie pins, or brooches.

Difference between violet and purple sapphires

While the terms violet and purple are often used interchangeably, there is actually a slight difference between the two when it comes to sapphires.

A violet sapphire is typically a lighter shade of purple with a bluish or lavender undertone. It is often described as having a cooler, more subdued color compared to a true purple sapphire.

On the other hand, a true purple sapphire is a richer and deeper hue of purple, with a stronger red undertone. This gives it a warmer and more vibrant appearance than violet sapphire.

When it comes to the value of the two gemstones, purple sapphires tend to be more highly prized due to their rarity and deeper color saturation. However, the value of both violet and purple sapphires ultimately depends on factors such as their size, clarity, and origin.

It is important to note that the distinction between violet and purple sapphires can be subjective and may vary depending on individual perception. Ultimately, the decision of which shade to choose comes down to personal preference and the desired look for the piece of jewelry in which the gemstone will be set.

Conclusion

Purple sapphires are a unique and beautiful gemstone that is gaining popularity in the world of jewelry. They come in a variety of shades and can be used in a variety of jewelry designs, from traditional engagement rings to unique and creative pieces. When buying a purple sapphire, it is important to consider factors like color, origin, and treatment, as well as to purchase from reputable dealers who can provide certification and information about the gemstone.

In terms of caring for a purple sapphire, regular cleaning and proper storage can help keep the gemstone looking its best. It is also a good idea to have the sapphire checked by a professional every few years to ensure that it is in good condition.

Overall, purple sapphires are a great choice for those looking for a unique and colorful gemstone to incorporate into their jewelry collection. Their vibrant hues and versatility make them a popular choice for a variety of styles and occasions.