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How much does a natural ruby ​​stone cost?

Ruby is a deep red colored gemstone and is the second most popular colored stone. Ruby, scientifically known as corundum, is a natural gemstone mined from the depths of the earth, and gets its color from natural trace elements such as chromium. Rubies are mined in Madagascar, Nepal, Thailand, Australia and Mozambique. Rubies are most often used in jewelry, especially rings and earrings for the right hand. They are very popular in the US and China as a birthstone for July births and for 40th wedding anniversary celebrations. It is best to set rubies in white or yellow gold, as this makes the color more vibrant and emphasized. There are many popular cuts for rubies, most notably the round and oval cuts. Rubies differ from diamonds in that there is no standardization or gradation for them. The most important factors in determining the quality and price of a ruby ​​are its size, color and clarity, with color is the most important factor in determining the grade of a stone.

Shapes of rubies

Rubies come in almost all shapes, but certain shapes are most popular because they bring out the red color more clearly. The most popular are round rubies. They are commonly used in solitaire rings, earrings and as accent stones in wedding/right hand rings. The second most popular shape is the oval ruby. Oval rubies reduce raw material losses and highlight the deep red color, which is why cutters prefer an oval shape. Other popular shapes are emerald/octagon and heart (the red heart is, of course, a symbol of love and affection). In larger sizes over 6 mm or about 1,00 carat, a cushion is more common and popular. In smaller sizes, less than 4 mm or about 0,30 carat, the princess/square shape is popular. Round rubies typically have the most brilliance because their cut allows light to reflect and reflect red sparkles back into the eye. Because of the reflection of light, it is important that there is more color in a round ruby. Other fancy shapes are deporte cut, so color matters more than shine. Shape rarely affects the visibility of transparent inclusions in rubies.

Ruby size

Rubies are often sized and cut to specific specifications and precision to the nearest hundredth of a millimeter, based on computer modeling of the raw material to maximize stone weight retention. Rubies should not be compared to diamonds as they tend to have a deeper pavilion (bottom of the stone) in all cuts, and therefore the carat weight of a ruby ​​is rarely the same as the carat weight of a diamond if the pavilion dimensions are the same. A 1,00 carat round ruby ​​is closer to 6mm, while a 1,00 carat round diamond is around 6,4mm. The goal of a gemstone manufacturer is to reduce raw material wastage and maintain carat weight. Therefore, rubies are cut into different shapes and sizes. There is no standard uniform cutting practice in terms of number of facets. It is important to understand the size of a ruby ​​in millimeters, not the weight in carats. Like all gemstones, the larger the ruby, the rarer and more expensive it is. Prices change exponentially, not linearly.

Natural ruby ​​color

The most important characteristic of a ruby ​​is its color. Color is assessed according to three main criteria: hue, hue and saturation.. Hue is the physical color of the ruby. It’s red, pink, or somewhere in between. Tone is the depth of color. It is dark, light or, again, in between. Saturation is the uniformity and distribution of color over the entire area of ​​the site. Is the color uniform over the entire surface or are there light or dark areas? Ruby color ideally is a rich, deep, even and bright red color. This does not mean that a light or dark red ruby ​​is bad, just that the most valuable and expensive rubies are “blood red” in color. Rubies, like most other gemstones, are not valued under magnification. The reason is that deep color is a priority, and color often masks inclusions, so enlargement is not necessary. When studying color, place the ruby ​​face up, between two fingers, or on a white surface, and rock and tilt the ruby ​​to view the color from multiple angles. Your eyes and natural instincts are very good at detecting color, so you can easily determine the quality. Unlike diamonds, rubies are graded on a scale. Below is the generally accepted grading scale for rubies, along with the corresponding colors needed to achieve that grade. Please note that the gemstone grading system is very arbitrary and laboratories do not assign a grade to the color of the ruby. Because each ruby ​​is unique and varies greatly from one another, it is impossible to standardize the grading scale. Price varies depending on color. It is important to note that color (besides size) is the most important factor in price. Also, since a grade A ruby ​​can be very dark or very light, the price may be the same. Shade is not the only determining factor. All three factors – hue, tone and saturation – must be assessed together when determining the price of a ruby.

Ruby purity

Forming a ruby ​​crystal requires large amounts of the Earth’s natural elements and many years of favorable conditions (pressure and temperature) for the natural growth of the mineral. This growth process involves many earthly elements that can affect the clarity of the stone. As the crystal grows, cracks and inclusions form, which affect the color and clarity of the stone. Many of the inclusions you see in diamonds can also be seen in rubies.. Rubies have clouds, needles, feathers, crystals, dots etc. All rubies have inclusions, and the degree to which they are present affects the color and visibility of the ruby. Rubies with many inclusions will appear dull in color and brilliance. They will appear whitish or pinkish and opaque. As the number and severity of inclusions decrease, the color becomes brighter, deeper and more even. With Clarity selects rubies with minimal visible inclusions, resulting in AAA quality. Inclusions are graded face up without magnification. Inclusions are primarily assessed by their effect on color, so there is no need to zoom in and look for them. Additionally, color can help hide inclusions. Therefore, they are not valued in the same way as diamonds. Their pricing is also similar to how color is priced. The higher the purity and color combination, the higher the value of the ruby ​​increases.

Mining natural rubies

Ruby is mined in various countries rich in minerals and natural resources. Rubies require special underground conditions, unlike diamonds, which can be found almost anywhere. “C” quality rubies are mined in Myanmar (Burma), Australia, Madagascar and Thailand. Although rubies can be found in other countries, we work with suppliers and mines from these countries because they support conflict-free mining practices and development of local communities. Rubies are an expensive mineral, and their mining creates many jobs, infrastructure, and funds hospitals, schools and community centers. Our rubies come from favorable areas where there are no armed conflicts. We work closely and carefully select suppliers to ensure ethical standards and legal transparency. To do this, we check the locations of mines and visit many of our sources. Rubies, as a rule, are much less common than diamonds. Their scarcity makes this mineral less convenient for use in settlements as currency in armed conflicts. Rubies are an excellent choice for use in engagement rings and other jewelry for those concerned about the ethics and origin of the mineral.

Ruby certification

Colored gemstones are generally not certified. The reason is that there are no standardized rating scales or practices that allow for consistent assessment. Ruby examination is more of an art than a science. The science lies solely in determining the processing and whether it is natural corundum or artificially created in a laboratory. All rubies we sell are 100% natural gemstones. We do not work with laboratories to create our gemstones, and we independently test each ruby ​​using instruments in our gemologists’ offices. This is our promise. No matter which jeweler you choose, you should be confident in how they test their rubies and how they mine them. For large or other rare rubies, there are laboratories that specialize in their evaluation and analysis of origin. These laboratories include GIA, AGS and AGL, which have a good reputation and authority in the colored gemstone market. We recommend that rubies weighing more than 1,00 carats be certified, as the document will confirm their value and will guarantee the natural origin of the stone. Often a more cost-effective option is to have the gemstone inspected by a certified appraiser. The appraiser, in most cases, will make the correct conclusion about the nature of the mineral’s origin; however, we strongly recommend requesting a certificate for the stone from a reputable laboratory. A laboratory report will allow you to determine with 100% accuracy the place of extraction of your specimen, draw up a map of inclusions, and confirm its natural origin. With further resale of the stone, this may affect the value of the ruby. Rubies from some countries, such as Myanmar, are more valuable because they are less common and have a more attractive color. We sell only natural precious stones whose origin is confirmed by a certificate, since jewelry is a significant and emotional purchase that does not tolerate compromise. Synthetic gemstones are never as visually appealing as natural ones. Even inclusions, to a certain extent, also add to the appeal of a ruby. Rubies are like art and therefore are valued and sold like the finest works of art or antiques.

Ruby refining

Almost every gem-quality ruby ​​undergoes a basic or standard treatment that slightly improves its quality. Such processing includes heating, oiling, glass filling. Our company never uses rubies filled with glass or lead. We believe this is a temporary measure to mask inclusions that may cause structural problems in the long term. Untreated natural rubies can be more than 10 times more expensive than treated ones. Heating is literally exposing a ruby ​​to high temperatures, which can improve the depth of color. This is an acceptable type of treatment that is necessary for many rubies, otherwise the colors will appear too light and uninteresting. Other treatments include oiling, dyeing, bleaching, waxing, irradiation and laser drilling. Our company does not supply gemstones that have undergone this type of treatment. Our gemologists examine each ruby ​​using a microscope and other testing equipment to check whether it has been treated other than heat. Fill out the form below, we will contact you in a convenient way and give you an understanding of the price and timing of searching for this stone. By clicking the “Send” button, you agree to the processing of personal data. We do not transfer data to third parties.

Sold rubies

Take a look at the stones we have already selected for our clients

  • Carat: 1.46
  • Cut: oval
  • Color: Top “Pigeon Blood”

  • Carat: 1.22
  • Cut: oval
  • Color: Top “Pigeon Blood”

  • Carat: 4.06
  • Cut: cushion
  • Color: Top “Pigeon Blood”

  • Carat: 2.06
  • Cut: oval
  • Color: Rich red

  • Carat: 3.16
  • Cut: heart
  • Color: Intense slightly purplish red

Ruby is a gemstone, a red variety of the mineral corundum. It is rightfully considered the most expensive red stone after the red diamond. The best bright red rubies cost more than a million dollars per carat at auction. In Russia, people are accustomed to seeing in jewelry made in the USSR not natural rubies at all, but synthetic ones, which cannot be compared in price with real natural ones. Heart-shaped faceted stones are especially attractive.

Bright red without additional shades is considered to be the best; it has the commercial name “pigeon blood”. Unheated specimens of this coloration, which are of Burmese origin, are most prized. If a red ruby ​​has purple or orange hues, this greatly reduces its value. It is worth noting that large specimens of good quality are extremely rare, so if you are offered to buy a large ruby ​​with good transparency, then be sure to request an expert opinion from a reputable gemological laboratory that would confirm its natural origin and contain information about refining.

If rubies have poor clarity, such specimens may be cut into cabochon shapes. These natural stones can have an interesting optical phenomenon – the effect of asterism (“star-like”). In ruby ​​cabochons with this effect, you can see a light 6-rayed star sliding across the surface. They may be called stellate or stellar. Such stones are highly valued.

This site –, does not sell precious stones – rubies, alexandrites, emeralds, sapphires, as well as jewelry made of precious metals due to the complexity of the goods (in accordance with Decree of the Government of the Russian Federation No. 612 of September 27, 2007) on the Internet. They can only be purchased in our office by prior arrangement, after reviewing them in person (certificate of registration with the Assay Supervision IP7701605300).

It is worth noting that prices for products with rubies in Russian jewelry stores are often relatively low. This is due to the fact that low-quality stones are used there, or filled with lead glass. The real carat price of such “rubies” is only 1-25 dollars. We select only the best quality items for our catalogue. The cost of unheated rubies can be 1,5-3 times more than heated ones. And glass filled ones are thousands of times cheaper than rubies refined by standard heat treatment. From us you can buy certified natural red rubies from Burma (Myanmar), Mozambique. It is also possible to buy natural star red corundums at an affordable price.

You can buy a ruby ​​stone in an office in Moscow by selecting a lot remotely. Video, photo, stone price, description are provided for each specimen. We can advise you on all the lots shown in the catalogue. By agreement with our employees, visit our showroom in Moscow, where you can choose and buy a ruby, viewing all the stones live.

If you need a ruby ​​of certain parameters, then we search for it according to your individual request. You can also order ruby ​​jewelry from Gem Lovers – please contact us!


Ruby is the most expensive of all colored stones. The Soviet past of its synthetic substitute has greatly distorted the cost and value of ruby ​​in modern Russia. There is also a dominance in the market of glass-filled red corundums, which are actually valued at a hundredth or even a thousandth of the price of an unrefined natural ruby. Beautiful natural specimens cost a lot, and the demand for them is only increasing.


When choosing a precious ruby ​​of a specific size for a product, it is worth considering that it is usually cut flat. In this case, with a minimum weight, the stone shows maximum “face”, that is, it looks larger in the product. The flip side of such savings to save mass will be a failure in color and play in the central part of the faceted specimen. Coloring is also an ambiguous thing, so Pigeon Blood and Vivid Red are often dark colors in our northern latitudes. Rubies from Burma will be 30-60 percent more expensive than their African counterparts.


It is not difficult to select small clean stones for a set, but if you need rubies from 3 carats, then the task becomes much more complicated. A weight of 5 carats or more can only be found among refined red corundums. You can order a set in a necklace or, for example, in dangling earrings, both heated and natural.


We can find stones from such rare deposits as Old Siam (Thailand), Jagdalek and Batakundi (Afghanistan and Pakistan), including African stones from Tanzania, Madagascar (Didy) and Mozambique. Burmese cut samples from the Mogok deposit and those present in larger quantities on the market are from Mong Shu.


From an investment perspective, ruby ​​is one of the most promising colored gemstones. Over the past 20 years, its price has risen rapidly. The best quality large untreated specimens from Burma are sold at auctions for more than $1 million/ct. Finding relatively inexpensive beautiful Burmese rubies is extremely difficult and they are significantly overvalued. In our opinion, it is advisable to consider untreated rubies from Mozambique larger than 3 carats in the “pigeon’s blood” color as an investment object. They are still completely undervalued, but they are beautiful and become more expensive from year to year.

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