Stones by zodiac signs

What does a ruby ​​gemstone look like?

From this article you will learn about the features of various factors that you need to pay attention to when buying natural rubies. And the practical recommendations given will help you choose a good quality sample that is pleasing to the eye. Rubies are gemstones that are the red variety of the mineral corundum. They are “siblings” of sapphires in their chemical composition and structure. These are the most expensive colored stones. In terms of their value, the best specimens can compete with very expensive colored diamonds. So in May 2015, an unrefined Burmese red ruby ​​weighing 25,59 carats was sold at Sotheby’s for $30,3 million. This is a record for total value and a record for value per carat – $1/ct. In this part, we will look at the three main factors that influence the cost of a stone: color, clarity and weight. In the second part, we will look at factors such as ruby ​​cutting, its deposits, etc., which also affect pricing. We’ll also tell you about interesting varieties. In the third part we will show you the real prices for rubies per carat.

Ruby color

First of all, the beauty of rubies is influenced by their color. Rubies can be red in color with hints of pink, purple or orange. The most expensive color is pure spectral red. In commerce, the expression “Pigeon’s Blood” may be used to denote the top bright red color of a ruby. This color may also be indicated in expert reports on rubies as a commercial color. In the photo: standards of red rubies “Pigeon’s Blood” from the collection of the Gemological Institute of Thailand (GIT) According to the gemological laboratory GRS, pigeon’s blood rubies have medium to strong red fluorescence, are high in chromium and low in iron (which “quenches” the fluorescence). Due to the red fluorescence that occurs under the influence of ultraviolet rays, such rubies will show the brightest red color in sunlight. Natural rubies look best in bright sunlight or incandescent light (yellow light). Due to this lighting, the red color of the ruby ​​becomes even more saturated. And in daylight (white), their color fades; even not very dark rubies may appear brownish. Foreign sellers take these features into account when designing lighting in their windows. Many rubies from the royal treasuries are characterized by a bright scarlet color, which is now very rare. Interestingly, there is no consensus among gemologists where there is a clear line in color between pink-red rubies and pink sapphires (both are varieties of corundum). In the photo: standards of red rubies from the collection of the Gemological Institute of Thailand (GIT). The Pigeon’s Blood color is only available for Vivid Red rubies. In Russia, small light pinkish-red corundums of the lowest quality can usually be found in jewelry. Such cheap stones cannot compare with the best bright red natural examples, which can be similar in color to a red traffic light. When choosing, you should pay attention to the color distribution in the stone. The red color may be distributed in patchy patches. Real rubies, like sapphires, are sometimes characterized by the presence of color zoning, which manifests itself in the form of alternating light and dark stripes in the stone, located at an angle of 120 degrees. “ Practical advice. The most important thing when choosing a natural ruby ​​is to evaluate its color; you should like it. Color is best viewed under different types of lighting: in daylight outside or near a window, and under various lamps or flashlights with “white” and “yellow” light. Pay attention to how light or dark the specimen is, its saturation, and whether the spotty color is visible from the side of the stone platform. Choose bright rather than dark stones that look good in different lighting conditions.”

Ruby purity

In the photo: raw ruby ​​from Tajikistan. Due to poor purity, such samples are used for making cabochons. In addition to color, beauty can also be influenced by how well it is clean. Those. how many inclusions and cracks it contains, and how much they are visible to the naked eye, or when viewed through a 10x magnifying glass. Rubies are rare and expensive gemstones, so due to the uniqueness of pure examples, when cut, they often have cracks and inclusions. They are characterized by the presence of light needle-shaped inclusions of rutile or boehmite. Large accumulations of such inclusions can create cloudy areas in the stone. Also, inclusions can be veils of gas-liquid inclusions or solid crystalline inclusions, such as apatite or zircon. The presence of inclusions may not particularly affect the perception of the beauty of the stone if they are not very noticeable and do not look too contrasting. If a natural ruby ​​has a beautiful color, then you can’t look at purity very strictly. But if it has perfect purity, then it can be either a very rare and expensive real ruby ​​or synthetic corundum, which is very cheap. By the way, during the Soviet era, products with bright, pure pink-red rubies were found in almost every family. The sad thing is that in reality these stones are not natural, but synthetic, grown using the Verneuil method. For visually clean stones, it is better to ask the seller for an expert opinion from an independent gemological laboratory, which would confirm their natural origin. Rubies with poor clarity and clarity are usually cut into cabochon form. Also, opaque pieces of raw materials can be used to make carved products. In the photo: two untreated rubies from Burma. The stone on the left has more inclusions and cracks inside than the stone on the right. Due to better transparency, the specimen on the right also better reflects light from the edges of the pavilion, and in dynamics this stone will look more interesting than the specimen on the left “ Practical advice. Rate the cleanliness. Make sure the stone is well rubbed and free of surface contamination. First look at the stone with your naked eye. Are there any large cracks or inclusions that are noticeable? It is advisable that they are not in the center of the stone. See if inclusions and cracks have a significant impact on the overall attractiveness of the stone? Then, you can look at the stone through a 10x triplet magnifying glass for a more thorough analysis. At the same time, pay attention to whether there are large cracks in the stone that extend to its surface. The presence of such cracks can sometimes lead to the splitting of a faceted ruby ​​even from an accidental light blow.”

Ruby weight

The weight of the stone is the next factor to consider when choosing a ruby. Because The rarity factor plays a role here: large stones are less common than small ones. The larger the precious ruby, the higher its cost per carat will be. Its cost per carat increases more with increasing weight than the cost of, for example, sapphires or emeralds. This is due to the noticeable rarity of large, true natural specimens. Now on the world market it is quite difficult to find a cut natural ruby ​​of good quality larger than 3 carats. Typically, high quality is found in stones only up to 1 carat. “ Practical advice. You can roughly estimate how the stone will look when mounted in a piece of jewelry. To do this, you need to place it on top of your fingers. Shake your palm in different lighting and notice the overall attractiveness of the stone. Do you like him or not?“ In the video: assessing the overall attractiveness of a 4,06 carat ruby ​​from Mozambique. The stone was heat treated – In the second part, we will look at factors such as the cutting of ruby, its deposits, the presence of refining and a certificate, which also affect the pricing of ruby. We’ll also tell you about the varieties.
– In the third part we will show you real prices per carat. A stone of passion and frantic energy. Perhaps it’s all about the color, but this is one mineral that you can’t take your eyes off. It is possible that this is precisely why the royals of many kingdoms turned their gaze to the “scarlet flower” of the bowels of the earth. Majestic rubies adorned the royal regalia of many states. How much is the “Polish Eagle” hairpin, which is kept in the Louvre, worth? Or Elizabeth II’s ruby ​​Burmese tiara? And the majestic “Monomakh’s Cap”? It is decorated with 8 large rubies on each of the plates. In the old days, rubies were called, in the European manner, yakhont. And the older our world becomes, the more attractive the stone seems to us.

Yakhontovye mines

The main deposits are considered to be India, Thailand, Vietnam, Tazania, Sri Lanka and Australia. But the most valuable are those mined in the mines of Myanmar. Imagine not just a dark red transparent ruby, but with a bluish tint – called “pigeon blood color”. Dark rubies of a noble burgundy color are found in a mine in the city of Mogou. And near the city of Mong Shu, gemstones are mined with amazing purple, blue and black colors at the core, with red ruby ​​edges.

In India, you can come across star-shaped rubies – if you hold one up to the light, you can see a star.

Pink, like ripe raspberries, specimens can be found in Sri Lanka. And minerals that shimmer in the light are mined in Africa. To get cut, stones are most often sent to Europe, Thailand and Israel. Jewelers have a difficult job; a ruby ​​is rarely pure, without inclusions of other materials. These inclusions are removed, the cracks are glued together, and the voids are filled with glass melt.

The price of ruby ​​passion

Rubies are not only the brightest stones, but also one of the most expensive, surpassing even diamonds in value. If we are talking about high-quality, pure and transparent ruby, then the price can reach hundreds of thousands of dollars and more.

The most expensive example, called Sunrise, was sold at Sotheby’s for almost $30,5 million.

That is, approximately a little more than 1 million per carat! And today this is a record. The second record holder is the largest ruby ​​- its size is 440 carats. Found quite recently in Greenland. It is still unnamed, but it is not difficult to guess that such a stone will be given a name to match. There are also cheap, low-quality rubies, these are often sold in Indian markets. Their cost is about 25 rupees per carat (that’s less than 1 dollar). A bracelet made from such stones will cost about 2000 rupees (about $30).

The magic of red stones

Fiery red stones may have been the eyes of a dragon in the past, as an ancient Eastern legend says. Fascinating, hypnotizing – if huge snakes existed, they would definitely look at the world with two ruby ​​drops. Already 2000 years ago, people began to attribute magical properties to rubies. For example, it was believed that ruby ​​enhances the good and bad qualities of nature: an evil and powerful person with such decoration can become an even greater tyrant, and vice versa. Ruby is still used as a talisman to protect against the evil eye, envy and slander.

The red mineral will help those who are overcome by doubts and uncertainty, and will restore harmony, peace and vitality.

It is a stone of health, prosperity, greatness and success. For Aries, such an amulet will restore mental strength and help get out of a depressive mood. This stone will give Scorpio confidence and push them to new beginnings. Gemini will be given flexibility and restraint. Ruby color will help Leos achieve their goals. But Aquarius and Virgo need to be careful with such a stone: they may not be able to withstand its power.

Synthetic ruby

The first synthetic ruby ​​was created by the French scientist Mark Houdin back in the 19th century. Now artificial stones are produced on an industrial scale. Rubies are grown from a mineral called corundum. This ruby ​​looks like a natural one, and the chemical composition is similar. It’s just that the product is initially transparent, and then it is painted with chrome particles.

How to choose a ruby

The price is affected by both weight (carats) and color. Shades of ruby ​​can range from burgundy to crimson. But the standard and most expensive stone is a pure red stone (Pigeon’s Blood), which contains a lot of chromium and little iron. To understand the purity of a stone, look at it with a magnifying glass and pay attention to the structure: it should be heterogeneous, interspersed. Cracks and cloudy areas are formed due to crystalline inclusions (zircon, apatite, boehmite, rutile). A perfectly clean sample should make you wonder: is it a fake? By the way, specialized homology centers carry out professional testing and certification of precious stones: GRS, AIGS, GIA, SSEF, IGI, AGTA, EGL, HRD.

How to distinguish a fake

  • Look carefully at how the stone shines and what color it is. At different angles it should change from dark to light;
  • run the stone across the glass. If a reddish mark remains, the stone is most likely artificial;
  • try scratching the ruby ​​itself, for example, with a coin. Don’t be afraid, real natural stone will not be damaged;
  • lower the sample into the glass: highlights should appear in it. And if you pour milk into a glass, it will turn pinkish;
  • look at the cracks: are they straight and shiny? Here is a synthetic; in natural stone they are zigzag and matte;

They can also sell it for a ruby pomegranate, tourmaline, rubellite и spinel. Mineral reserves are decreasing, which means that there are more fakes and the price of rubies will only increase. So it’s a good investment.

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