When it comes to selecting jewelry for one’s collection, the choice between platinum-plated and diamond jewelry can be a difficult one. Both metals are renowned for their aesthetic appeal, durability, and longevity, making them a popular choice for crafting engagement rings and other jewelry pieces. However, which of the two metals is harder and longer-lasting remains a question.

To answer this question, it is important to first understand what platinum and diamond metals are and then evaluate the hardness of both metals. In this article, the author will provide background information on platinum and diamond metals, examine their MOHs hardness, and compare the two metals to determine which is harder.

Key Takeaways

  • Platinum and diamond metals are both popular choices for crafting jewelry due to their aesthetic appeal, durability, and longevity.
  • The MOHs hardness of platinum and diamond metals will be evaluated to determine which is harder.
  • By comparing the two metals, the author will provide insight into which metal may be the better choice for those looking for long-lasting and durable jewelry.

What is Platinum Metal?

Platinum is a transition metal that has a unique atomic structure, allowing it to bond easily with other elements. It is highly valued in the jewelry world due to its rarity and desirability. In fact, it is one of the rarest metals in existence and is considered a luxury metal among the purest and most precious metals used in fine jewelry.

Previously known as ‘white-gold’, platinum is a silver-white metal that is highly resistant to corrosion and tarnishing. It is also very soft and malleable, making it easy to shape into various forms. Additionally, platinum is unreactive and does not oxidize or damage due to contact with common acids. Its ductility also makes it easy to stretch into a wire.

Platinum’s unique properties make it a popular choice for fine jewelry, particularly engagement rings and wedding bands. Its rarity and durability also make it a valuable investment. For those seeking a luxurious and precious metal, platinum is an excellent choice.

What is Platinum MOHs Hardness?

The MOHs scale of hardness is a system used to rank different metals based on their scratch-resistant levels. This scale ranges from 10 being the most scratch-resistant to 1 being the softest and easiest to scratch. Platinum falls under 4 – 4.5 on the MOHs scale of hardness, which means that it is not a hard metal. This implies that platinum can be scratched by any element, metal, or alloy that is much harder than it is.

The MOHs scale of hardness is not only used to compare different gemstones used to make a variety of jewelry pieces but also to organize different types of metals based on their scratch-resistant levels. Platinum, being a metal, is ranked on this scale and is found to be less scratch-resistant than other metals that fall above it on the scale.

Therefore, it is important to consider the MOHs hardness scale when choosing metals for jewelry pieces to ensure that they are durable and less prone to scratches.

What is a Diamond?

A diamond is a highly coveted gemstone in the world of jewelry. It is a polymorph of carbon and has a crystal structure known as diamond cubic. Diamonds are excellent electrical insulators and are highly abrasive. They are transparent and crystallize in the isometric system. Due to their unique properties, diamonds are often used to create exquisite engagement rings and other fine jewelry pieces.

What is the Hardness of a Diamond?

Diamond is one of the hardest naturally occurring materials known to man, rating a perfect 10 on the MOHs scale of hardness. Its hardness is attributed to its crystalline perfection, purity, and orientation. This makes it an ideal gemstone, as it is scratch-resistant and maintains its polish well. As a result, it can be worn daily without losing its luster. Its durability and resilience make it a highly sought-after material for use in jewelry and industrial applications.

Platinum vs. Diamond: Which is harder?

Diamond is considered the hardest natural occurring metal in the world, with a Mohs hardness scale of 10 and a Vickers hardness scale of 1150-1350. In comparison, platinum has a Mohs hardness scale of 4-4.5 and a Vickers hardness scale of 130-200. This means that diamond is significantly harder than platinum.

However, it is important to note that diamond’s hardness does not make it indestructible or unscratchable. Softer materials, such as vinyl records, can wear it down over time, and even other diamonds and nano-crystalline diamond aggregates can scratch it.

In conclusion, while diamond is the clear winner in terms of hardness when compared to platinum, it is not impervious to damage.


In conclusion, whether one prefers a Diamond or Platinum ring, combining both metals is a sure way of achieving a luxurious and classy look. Both metals are also known for their durability, ensuring that the ring will last for years to come. Tiger, a fashion and jewelry lover and manufacturer, shares valuable information on the benefits of combining these metals. For more information on jewelry metals, readers can visit the provided link or the home page. Overall, incorporating both Diamond and Platinum metals into a ring is a great option for those looking for a high-end and long-lasting piece of jewelry.