What Is The Toughest Gemstone?


Which is the toughest gemstone? Here I am going to answer this question by giving you a list of hard gems. And how they rank according to their hardness. Many people believe that diamond is the hardest, while very few say that it is ruby ​​or sapphire stone.

Whenever you wear this type of gemstone in a ring, earrings or necklace it seems tough, but have you noticed that many gemstones are harder than many others? The hardest stone is diamond, while talc, for example, is a very soft material.

The Mohs Hardness Scale examines a mineral’s ductility to determine the hardness of a mineral with ten reference standards. Mineral A, for example, is the gentler of the two, if it can be scratched by mineral B.

There are many heated arguments on this topic! In this blog post, we will discuss why diamond is not really the hardest gemstone and who really deserves this crown.

What is the toughest gemstone: Diamond

Understanding where a gemstone falls on the Mohs Hardness Scale allows jewelers and buyers to choose the best gemstone for a certain piece of jewelry. Because wedding rings were used daily and were unintentionally exposed to roughness and mold of life, the ideal choice is a harder, more permanent stone.

READ MORE ➨ How To Energize Emerald gemstone ?

Therefore, a softer stone can be used as the chances of the earrings or pendants colliding are very less. Mohs hardness with less than seven scratches easily and should never be used on rings.

Which gemstone is tougher than a diamond?

Diamond is generally the hardest gemstone. But cubic zirconia (CZ) is another type of diamond that is not as hard as diamond. Cubic zirconia was created to mimic the appearance, but not exactly match the quality and hardness of a real diamond. CZ (Cubic Zirconia) has a level of hardness comparable to that of diamond. But it is not as durable as diamond.

List of top toughest gemstone than diamond

  • Ruby

The hardness can range from about 900 to 1000 on the Mohs scale of mineral hardness. In particular, ruby is one of the hardest gemstones because it can only be damaged by a diamond, but it is not as hard and hard as a diamond.

  • Sapphire

Hardness The Mohs scale of mineral hardness ranges from 0 to 10000. The CZ ranges between 800 and 900, slightly softer than gold or copper, but much harder than glass.

  • Diamond

Hardness can range from about 900 to 1000 on the Mohs scale of mineral hardness, but there is a type that has lower hardness and durability called cubic zirconia, or CZ.

  • Corundum

The hardness level has a 1000+‎ Mohs scale. Corundum is one of the hardest gemstones.

  • Topaz

The hardness can range from about 900 to 1000 on the Mohs scale of mineral hardness. Topaz is one of the hardest gemstones.

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  • Emerald

The hardness level is 800+‎ on the Mohs scale. Emerald is one of the hardest gemstones.

  • Garnet

The hardness can range from about 900 to 1000 on the Mohs scale of mineral hardness. Garnet is one of the hardest gemstones.

  • Quartz

Also called Rock crystal or sapphire : Hardness level: 700+‎. Quartz is one of the hardest gemstones.

  • Tourmaline

The hardness can range from about 900 to 1000 on the Mohs scale of mineral hardness. Tourmaline is one of the hardest gemstones.

  • Opal

Opal is one of the hardest gemstones because it is a form of silica and will not break even if you try to drill through it. It also has iridescence.

  • Zircon

Zircon is a type of volcanic rock and is not an attractive, though not a hard gemstone. This is also known for its durability with the hardness of diamond or quartz. It is very difficult to find gems in this color that do not contain zircon content at some point in the process.

“These gems have life in them: their colors speak, say what words fail of”

― George Eliot

How To Measure Hardness Of A Gemstone?

Gemstone hardness can be measured in two ways: by the Mohs scale, which is quantitative and relative, and by the GIA diamond reference scale, which is qualitative.

READ MORE ➨ Can We Wear Used Gemstones?

Mohs Scale

The scale was created in 1812 by the German mineralogist and geologist Friedrich Mohs, a scale that measures the hardness of minerals on an 11 point system.

The scale ranges from 0 to 10000, with lower numbers being softer than higher ones.

A diamond is given a score of around 1000 or 1500 depending on its purity (99% pure on this hardness scale would be around 1200).

Sapphire is around 1000, while Ruby is only around 900.

GIA Diamond Reference Scale

The scale ranges from D (soft) to Z (hard), with most gemstones falling somewhere in the middle of this spectrum of hardness and hardness. On the qualitative side of things, corundum falls in between C-J for hardness levels according to this scale, while quartz is around K.

Why Do I Need To Know How Tough My Gemstone Is?

Gemstone hardness is a method used to classify gemstones. Other points of classification are colour, refractive index and brightness.

READ MORE ➨ Who Can Wear Alexandrite Gemstone?

Hard gems are able to scratch soft gems, and soft gems are not capable of scratching hard gems. For example, diamonds can scratch sapphires, but not vice versa.

Quartz is one of the hardest gemstones because it cannot be broken with any other type of rock. But what exactly makes quartz so hard? The answer lies in its crystalline structure, which consists of silicon and oxygen atoms arranged in a tetrahedron shape.

Quartz crystals are also anisotropic, meaning they have different properties when viewed from different angles. This is important because it makes the crystal stronger and harder than other minerals such as calcite or gypsum.

Who Is The Toughest Gemstone In Reality?

If you want to pick the hardest gemstone that can be mine from the earth, diamond will definitely take the first place! But if we are talking about hardness in the way of its hardness, then quartz will be the hardest.

The Gemstone Diamond 

Diamonds are probably the most famous gemstones globally, and diamonds cost significantly more than all other gemstones. Among the reasons for its prominence are the optical properties of diamond, or how it reacts to light.

Endurance, fashion, customization and aggressive advertising are other criteria by diamond manufacturers. For such April month the birthstone is diamond.

Diamonds have such an “adamantine” luster, which is the brightest non-metallic luster. Because of their great luster, they can reflect large amounts of light reaching their surfaces, and this is among the characteristics that give diamonds their “shine”.

Whenever a diamond was cut into such a gemstone, the aspect angles were designed to reflect as much light as possible from its inner surface.

READ MORE ➨ How To Wear Moonstone Gemstone?

Diamonds have a large dispersion, and such great dispersion causes white light to split into its constituent colors as it travels through such a diamond.

The ability of a prism to split white light into the colors of the spectrum is due to scattering, and the fiery “fire” of diamonds is due to this characteristic of dispersion.

  • Diamond Cleaning Instructions

Because diamond is a really durable stone, you can clean it easily with soap and warm water, and maybe even a small brush. Many diamonds can be cleaned with ultrasonic or steaming; However, we ensure that your gemstone is free from defects, serious defects or cracks before using any of these procedures.

Keep in mind that while the diamond will resist these harsh cleaning processes, your item may not contain settings and other gemstones. Carefully clean the jewelry between the most delicate components.

  • Diamond care instructions

Keeping your diamond jewelry away from your various items is probably the most important part of taking care of it. Because diamond is the hardest gemstone, it will damage any other gemstone.

Keep each piece of diamond separate to avoid interfering with each other. If possible, keep items in separate soft bags or containers. It’s still a good idea to remove the diamond while doing housework, exercising, or participating in a sport.

  • Where does Diamond came from?

While South Africa is indeed a major exporter of diamonds, it now accounts for less than half of the industry’s share and thus no longer has the same level of control. India, Canada, Russia, Australia and Brazil are now important partners on the global stage.

What Color Gems Should You Wear?

Which color best serves you is just a personal preference. Your attitude, appearance, and the clothes you choose to wear will all influence your decision.

Examine different types of jewelry. Subtle color differences can have a big impact on how they feel about you and your emotional experience.

READ MORE ➨ Why Are Gemstones From India So Cheap?

Higher grades were essential for precious stone enthusiasts. On the other hand, the average consumer can find almost as much attractiveness in reasonably priced stones. Remember that quality does not mean superiority; Rather, it reflects rarity.

When looking for stones, keep these four things in mind:

  • Lapidaries don’t always work flawlessly, just as nature doesn’t always give the right stones.
  • Be ready to compromise. You may not be able to buy the stones of your first choice.
  • Keeping your budget in mind, choose a diamond that matches your taste.
  • Lastly, the most important thing when buying a gemstone is the pleasure you get from it.


So, diamond is not the hardest gemstone. And it has surpassed other gemstones like ruby ​​and sapphire in terms of hardness and durability.

You now have a better understanding of the components that go into a gemstone rating. Understand that “high quality” doesn’t always mean “rare features.” Stones smaller or lighter than a higher grade may be ideal for you.

Remember this However, that clarity can affect the durability of the gemstone and the use of the jewelry. In addition, cutting can have a significant effect on the appearance of a gemstone, so inspect the cut gems carefully. Only go for the highest premium deduction that you can afford. (A badly cut stone will not attract anyone.)

If you think this blog has helped you? Please share the blog with your friends, family and all gem lovers. If I missed something in the blog then let me know by commenting. Thanks for reading…

What Is The Toughest Gemstone?

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