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  : Purple and Violet Gems

Purple and Violet Gemstones

Amethyst, Iolite, Tanzanite, Rubellite, Sapphire & Spinel Gems
Amethyst, Iolite, Tanzanite, Rubellite, Sapphire & Spinel Gems

Purple and violet are both a mix of blue and red with some hues being nearer to blue and others closer to red. The terms "purple" and "violet" are often used interchangeably, but there is a subtle difference. On a traditional color wheel, violet is next to blue and purple is between violet and red. This means that violet is a cooler hue than purple. Purple and violet have certain connotations; some of these are individuality, religion, royalty and wealth. In some spheres, purple is seen as a middle ground between aggressive red and tranquil blue. This is true in politics, where red and blue have particular affiliations and associations.

The first purple gemstone that usually springs to mind is amethyst, which is a variety of quartz and occurs as geode gems as well as polished stones. Fine amethyst has been mistaken for purple sapphire in the past, in particular, the Delhi Purple Sapphire, which has an interesting story of ill-fate. Yet, this beautiful purple gemstone actually turned out to be a rather large amethyst. Other well-known amethysts include the Duchess of Windsor's amethyst and turquoise necklace designed by Cartier in 1947 and the Kent Amethyst Demi-Parure owned by the Queen of England. While deep purple amethyst is valued above all, it is also available in lighter shades, which are preferred by some gem enthusiasts. This is sometimes referred to as "Rose de France"; a trade name for light colored amethyst that appears somewhat like kunzite. Amethyst is the birthstone for February and is attributed with the ability to prevent intoxication. While amethyst is probably the best-known purple stone, it is not the only one; there are several other options to consider, depending on the requirements.

Purple & Violet Sapphire Gems
Purple & Violet Sapphire Gems

Although blue is the best-known color for sapphire gems, purple sapphires colored by vanadium, iron or titanium traces are quite rare. Purple sapphires vary between pinkish-purple to cool violet. Some purple sapphires have the ability to show a color change under different lighting conditions. Purple sapphires are perfect for engagement rings or other jewelry that will be exposed to daily wear and tear. Sapphire has it all; superior hardness, brilliance, color and durability, but it comes at a high price in large sizes.

Spinel gems occur in a plethora of purple and violet hues, from reddish-purple to cool grayish-violet. Along with perfectly pure color in almost every variation from gray to red comes wonderful brilliance and very good hardness. Moreover, spinel gems are untreated and tend to be sold at prices that are more pocket-friendly than ruby and sapphire. Large purple spinel stones are hard to find, but small stones are easily available and their lack of size is compensated for with color and sparkle. The most famous spinel gemstones are red, rather than purple and some of them have been mistaken for fine ruby. Such historically important spinel gems include the Black Prince's Ruby. Another such stone sits atop the Russian Imperial Crown and weighs 398.72 carats.

Violet-Blue Tanzanite Gems
Violet-Blue Tanzanite Gems

A gemstone with cool violet colors is tanzanite, which is a pleochroic gem that may display blue or violet depending on the angle from which it is viewed. In fact, the most desirable tanzanite color is bright blue, so gemstones tend to be cut to maximize the blue rather than the violet hue. Yet, many stones lean toward the violet end of the scale. Tanzanite is only found in the hills of Northern Tanzania, the country after which it was named by Tiffany & Co. While tanzanite is not as hard as spinel or sapphire, it has incredible color saturation, which is why it is so valued. Indeed, by looking at the magnificent color of tanzanite, it is easy to see why this official December birthstone has become so popular. It is affordable in 1 to 2 carat weights and is best in protected settings for rings that will be worn daily. This is because of its perfect cleavage, which like diamond means that a single blow can cleave it. The most incredible tanzanite gem is the 242-carat "Queen of Kilimanjaro", which is mounted in a white gold, serpent-like tiara with tsavorite garnet and diamond.

Another violet gem is iolite, which gets its name from the Greek word for "violet"; "ios". Like tanzanite, iolite is pleochroic. It appears blue or violet when viewed from one direction, colorless from another and yellowish when viewed from a third direction. Iolite gems may be pale to dark-blue or violet, and are translucent to transparent. An important historical use of iolite was as a polarizing filter for Vikings, who navigated by the position of the sun. Like tanzanite, iolite gems have good hardness, but should not be exposed to hard blows due to its cleavage. Therefore, if iolite is to be worn daily in a ring, it should be mounted in a protective setting. A benefit of iolite apart from its wonderful color is that large gems are affordable and great for statement jewelry pieces.

Rubellite Tourmaline Gems
Rubellite Tourmaline Gems

For those who prefer the warm side of purple, tourmaline is a hot choice. Purple tourmaline stones tend to be deep pink or warm purple. These are highly valued gems known as rubellite tourmaline and show fantastic vivid color that will wow any colored stone fan. The most prized rubellite stones appear similar in color to rubies. One such fine red tourmaline was fashioned into in incredible poppy brooch by Joel Arthur Rosenthal. It was owned by Lily Safra and auctioned by Christie's for $1,273,320 in 2012. Rubellite tourmaline is rare, but untreated. It has excellent luster, good hardness and is stunning in any jewelry application.

When it comes to opaque, cabochon gems, there is a little less choice. Purple cabochon gems include lavender chalcedony and lavender jadeite, which tend to be less saturated hues, so are not always considered to be true purple gems. More vivid are sugilite and charoite; two gem types that are not widely known by mainstream gemstone dealers. Sugilite is a fairly recent discovery; it was first found in Japan in 1944, but was not suitable for gemstones. However, in 1979, gemstone appropriate sugilite was discovered in South Africa. Sugilite ranges in color, from pale lavender to deep purple or violet. It may be uniform or multicolored with yellowish, brownish-red or black blotches. Sugilite may also have a mixed composition, containing chalcedony or host rock. Stones with patterns are often prized for their uniqueness. Most sugilite is opaque and therefore cut as cabochons, but rare, translucent sugilite has been faceted. Sugilite has been referred to as "sugilite jade" or "purple turquoise", but it is related to neither of these. Sugilite is hard and durable enough for most jewelry applications.

Purple Charoite Gemstones
Purple Charoite Gemstones

Charoite is another rare purple gem that is a recent find. Like sugilite, it was first discovered in the 1940s, but was not produced commercially until 1978. Also like sugilite, the color of charoite ranges from lavender to deep purple, but differs from sugilite in its appearance. Charoite has a distinctive swirled or streaked pattern, which makes it stand out. The streaks of charoite may be whitish, black, green or orange, making it a multicolored gemstone which is predominantly purple. In addition, charoite possesses some chatoyancy, giving it a translucent marbling effect. It is often described as being "unnaturally beautiful" and treated with suspicion, but charoite is a natural gemstone mined only from Siberia. Since charoite has a sole source, it is said that its supply may soon be depleted. Charoite is not a very hard stone, so it should be protected from wear and tear in jewelry that is worn on a daily basis.

Whether a warm purple or cool violet is preferred for gemstone jewelry, both hues are stunning in either yellow or white metal. Of purple, a writer called Uniek Swain said, "All the other colors are just colors, but purple seems to have a soul. Purple is not just a noun and an adjective but also a verb - when you look at it, it's looking back at you." From the ancient use of Tyrian purple to Purple Rain, it certainly is a color that captures the imagination like no other. If you select this color, do not be a shrinking violet, but be a violet vision. Wear your purple stones with pride and they will exude elegance and positivity.

  • First Published: June-03-2016
  • Last Updated: April-25-2017
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