Rock Discoveries

Unveiling the Beauty and Value of Ruby Gemstones

Tools and Techniques for Gemstone Manufacturing

Gemstones come in a variety of shapes, sizes, and colors, making them one of the most sought-after and valuable natural resources. From rubies to quartz, amethyst to corundum, gemstones require careful cleaning, shaping, and polishing to bring out their inherent beauty and value.

In this article, we will explore the tools and techniques used in gemstone manufacturing, including cleaning, polishing, shaping, and cutting.

Cleaning and Polishing Rough Rubies

Before any cutting or polishing can begin, rough rubies must be properly cleaned to remove any dirt or debris. This is a delicate process that requires patience and attention to detail.

The first step in cleaning rough rubies is soaking them in warm, soapy water for several hours. This helps to soften any dirt or debris and makes it easier to remove.

Once soaked, scrub the ruby gently using a soft-bristled brush to remove any remaining dirt or debris. When scrubbing, be sure to use a light touch and avoid any harsh abrasives or chemicals that may damage the surface of the ruby.

Once the ruby is cleaned, it can be shaped and polished. Use diamond file or grinding stone to shape the ruby, being careful not to introduce thermal shock that could damage the stone.

Then, use a felt-tip or eyeglass cloth and diamond paste to achieve a high polish shine. One should select gradual grit increases to minimize scratches.

The results will be dazzling and captivating.

Tools and Methods for Gemstone Cutting

When it comes to gemstone cutting, it is essential to seek professional instruction before attempting any cutting on your own. Gemstones such as quartz and amethyst can be quite delicate and require careful handling to avoid damage.

One type of gemstone cutting, cabochon cutting, is done with a faceted gemstone, making them level on top and convex below. The process yields a beautiful dome-like shape, with smooth curves and edges.

When it comes to cabochon cutting, there are a variety of tools and techniques that can be used:

– Lapidary machines or Dremels can be used for precision cutting and polishing. – Bench grinders are essential in shaping and removing excess material.

– Dop sticks or a similar apparatus can hold the gemstone in place for the cutting or polishing process. When using these tools, it is essential to use proper safety equipment such as eye protection, gloves, and earplugs to prevent possible injury.

Techniques for Shaping and Polishing

Regardless of the specific tools used for gemstone cutting, some basic techniques will always apply. The first step is to examine the gemstone and plan the desired shape carefully.

Afterward, abrasive cutting disks or saws are used to remove any excess material carefully. The gemstone is then sanded and polished, using gradually finer grit polishes until one is satisfied with the desired result.

When polishing, it’s essential to use the correct polish type and the appropriate equipment at the right time. Remember to use a good quality polishing cloth, preferably made of soft materials that won’t scratch the surface of the gemstone.


In summary, the tools and techniques for gemstone manufacturing are critical for bringing out the natural beauty and value of a gemstone. Cleaning, polishing, shaping, and cutting are all essential steps in the process.

Proper safety equipment must be worn when using any tools, and beginners should seek professional instructions before attempting to cut any gemstones. By following the right process and being patient, one can produce outstanding results in the gemstone manufacturing process.

Characteristics and Value of Rubies

Rubies are the quintessential red gemstones that have enchanted people for centuries. The fiery red color, unparalleled brilliance, and exceptional hardness of rubies make them one of the most valuable gemstones in the world.

In this article, we will explore the formation, characteristics, rarity, and market value of rubies, as well as their historical significance and myths.

Beauty and Value of Rubies

Few gemstones can match the allure of rubies. The deep red color, commonly referred to as “pigeon’s blood,” symbolizes love, passion, and strength.

It’s also the birthstone for people born in July. The beauty of rubies stems from the presence of chromium and iron in the corundum crystals that make up the gemstone.

The best rubies have a vibrant red hue and a high clarity, without visible inclusions or defects. The most valuable rubies are those found in Burma, now known as Myanmar, which have a unique fluorescent quality that brings out their intense hue.

Formation and Characteristics of Rubies

Rubies are a type of corundum, the second-hardest mineral after diamond. They form as hexagonal crystals in metamorphic rocks such as marble, schist, and gneiss.

The red color of rubies comes from the presence of chromium in the corundum crystal lattice, which replaces some of the aluminum atoms. The best rubies are typically found in deposits that have undergone high-pressure and temperature metamorphism over millions of years.

These conditions create the right environment for the formation of large and high-quality rubies. The characteristics of rubies are the factors that determine their value and rarity.

The most valuable rubies are those that have the following attributes:

– Deep red hue with a slightly bluish or purplish tone

– High clarity without any visible inclusions or defects

– High fluorescent quality

– Large size

The rarity of these exceptional rubies contributes to their high market value.

Rarity and Market Value of Rubies

Due to their rarity and beauty, rubies are one of the most valuable gemstones in the world. The most valuable rubies are those found in Myanmar, where mining and exporting are tightly regulated.

Other sources of rubies include Vietnam, Mozambique, Thailand, Madagascar, and Tanzania. The value of rubies is dependent on their size, color, quality, and origin.

Large rubies with a deep red hue and high clarity are the most valuable. In some cases, rubies can be more expensive than diamonds.

In 2015, a 25.59-carat ruby sold for over $30 million, setting a new record for the most expensive colored gemstone ever sold at an auction. Ruby is a popular gemstone for jewelry since it is durable and has a high display value.

Ruby jewelry, especially engagement and wedding rings, is a popular choice for those who want to express their love with a unique and precious gift.

Historical Significance and Myths of Rubies

The beauty and rarity of rubies have made them a fascinating gemstone throughout history. In ancient times, rubies were believed to have healing powers and were thought to protect the wearer from harm.

They were also used as a talisman for good luck and fortune. In Hindu mythology, rubies were regarded as the “king of gems” and were believed to have the power to light up the darkness.

In Chinese culture, rubies were associated with fire and were thought to bring good health, happiness, and prosperity. One of the most famous historical rubies is the Black Prince’s Ruby, which is not actually a ruby but a red spinel.

It is set on the Imperial State Crown of England and was worn by King Edward III in the 14th century. In conclusion, the beauty, rarity, and historical significance of rubies have made them one of the most sought-after and valuable gemstones in the world.

The intensity of the red color, combined with exceptional clarity and high fluorescent quality, makes rubies stand out from other gemstones. As a birthstone of July, rubies continue to hold a special place in people’s hearts and have always been regarded as a symbol of love, passion, and strength.

In conclusion, this article delved into the characteristics and value of rubies, giving insight into why they are so highly sought-after in the gemstone world. We explored their formation, rarity, and market value, as well as their cultural and historical significance.

Rubies continue to be a captivating gemstone, both in terms of their beauty and their exceptional rarity. Here are some frequently asked questions to provide additional information and clarity:


Q: What makes rubies so valuable?

A: Rubies’ high value is due to their deep red hue with a slightly bluish or purplish tone, high clarity, high fluorescent quality, and large size. Q: What is the significance of rubies in culture and history?

A: Rubies have been highly regarded in many cultures throughout history, symbolizing love, passion, strength, and good luck. Q: How are rubies formed?

A: Rubies are a type of corundum, forming as hexagonal crystals in metamorphic rocks. The red color of rubies comes from the presence of chromium in the corundum crystal lattice.

Q: How do I determine the value of a ruby? A: The value of a ruby is dependent on its size, color, quality, and origin.

Large rubies with a deep red hue and high clarity are the most valuable. Q: How should I care for my ruby jewelry?

A: Clean your ruby jewelry gently with warm water and a mild soap. Avoid exposure to harsh chemicals, heat, and direct sunlight.

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