Diamonds have a reputation for being impossible to scratch. Many people believe they are completely indestructible because they are the hardest natural material on Earth. While that sounds reassuring, it isn't the complete story.
If you've ever wondered what can scratch a diamond, or asked yourself can you scratch a diamond, you're not alone. These questions are common among engagement ring owners and anyone investing in diamond jewellery.
The truth is more interesting than the myth. Diamonds resist scratches better than any other natural gemstone, but they aren't immune to damage. Understanding what really happens can help you protect your jewellery and keep it looking beautiful for years.
In this guide, we'll separate myths from facts, explain can diamonds get scratched, discuss do diamonds get scratched, and share practical care tips you can actually use.
Why Are Diamonds So Hard?
Diamonds are so hard because their carbon atoms are connected in a very strong crystal pattern. Each atom is tightly bonded to four other carbon atoms, creating a solid structure that is difficult to scratch. This is why diamonds rank 10 on the Mohs Hardness Scale, the highest rating for natural minerals.
But hardness does not mean a diamond cannot be damaged. It only means it resists scratches better than any other natural gemstone. A diamond can still chip or crack if it receives a hard impact in the right place. Understanding this difference helps you take better care of your diamond and avoid common myths.
Round Solitaire Ring
A refined oval diamond design crafted for everyday brilliance.
Radiant Diamond Ring
Bold facets and exceptional fire in a contemporary radiant silhouette.
Cushion Cut Ring
Soft cushion facets paired with a balanced and luminous profile.
Emerald Cut Ring
Clean step-cut geometry with a striking mirror-like appearance.
What Can Scratch a Diamond?
The simple answer is another diamond.
A genuine diamond is the hardest natural material, so common items like keys, coins, glass, steel, granite, sandpaper, and ceramic cannot scratch its surface. That's why diamonds are a popular choice for jewellery worn every day.
However, being hard doesn't mean a diamond cannot be damaged. A strong hit or fall can chip or crack it, especially around its edges or pointed corners. Keeping your diamond in a separate jewellery box also helps prevent diamonds from scratching each other.
This is why jewellers recommend handling diamond jewellery with care, even though it is highly resistant to scratches.
Can You Scratch a Diamond?
Many people have heard of the old glass scratch test and assume it's a good way to check if a diamond is real. In reality, this test is not reliable and is best avoided. A diamond can scratch glass because it is much harder, but scratching glass does not confirm that the stone is a real diamond. It can also damage the glass or even put pressure on a loose setting.
If you're wondering can you scratch a diamond, the answer is simple: only another diamond can create a true scratch on a diamond's surface. Everyday materials such as glass, metal, coins, or keys are not hard enough to scratch it. However, diamonds can still chip if they receive a strong hit on the edges or corners, so they should always be handled with care.
For the most accurate results, use professional diamond testing or have the stone checked by a trusted jeweller instead of relying on scratch tests.
Do Diamonds Get Scratched by Other Diamonds?
Yes. A diamond can be scratched by another diamond because both have the same level of hardness. When loose diamonds come into contact during storage or transport, they can create tiny scratches or surface marks. This is especially important for princess cut diamond rings, as their pointed corners benefit from extra care during storage.
This is why professional jewellers always store diamonds separately instead of keeping several stones together. If you have more than one diamond ring or loose diamond, keep each piece in its own jewellery box or soft pouch. This simple habit helps protect your jewellery and keeps your diamonds in good condition over time.
Common Myths vs Facts About Diamond Scratches
| Common Myth | Fact |
|---|---|
| Diamonds never get damaged. | They resist scratches but can chip or crack. |
| Glass can scratch diamonds. | Glass cannot scratch a real diamond. |
| Metal scratches diamonds. | Common metals are much softer than diamonds. |
| Daily wear ruins diamonds. | Normal wear rarely scratches the stone. |
| Every scratch means the diamond is fake. | Surface marks may actually be dirt or damage to the setting. |
Materials That Cannot Scratch a Diamond
A diamond is the hardest natural material, so common metals and everyday materials cannot scratch it. They may leave marks on the ring setting, but not on the diamond itself.
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Gold – Too soft to scratch a diamond.
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Silver – Cannot damage a diamond's surface.
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Platinum – Strong, but softer than a diamond.
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Stainless Steel – Durable but cannot scratch a diamond.
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Quartz – Hard, yet much softer than a diamond.
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Granite – Cannot scratch a diamond.
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Glass – Diamonds scratch glass, not the reverse.
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Ceramic – Hard, but not hard enough to scratch a diamond.
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Copper – Too soft to affect a diamond.
- Aluminium – Cannot scratch a diamond.
How to Protect Your Diamond
A diamond is one of the hardest natural materials, but taking good care of it helps keep it looking clean and secure for years. A few simple habits can prevent unnecessary wear on the jewellery and reduce the chance of losing the stone.
Store Jewellery Separately
Keep each diamond ring or piece of jewellery in its own soft pouch or lined jewellery box. This helps prevent the metal from rubbing against other jewellery and avoids small marks on the setting.
Clean It Regularly
Wash your diamond jewellery with warm water, a few drops of mild dish soap, and a soft toothbrush. Regular cleaning removes oil, dust, and everyday dirt so the diamond stays clear and easy to inspect.
Have the Setting Checked
Check your ring setting once or twice a year with a jeweller. Loose prongs or worn settings can increase the chance of the diamond falling out, even when the stone itself is still in good condition. If you wear a bezel setting ring, it is one of the most secure ring settings because the metal surrounds the diamond and helps protect its edges. Even so, having the setting inspected regularly helps ensure it stays secure over time.
Final Thoughts
Only another diamond can scratch a diamond, so everyday wear is unlikely to leave scratches. With proper cleaning, safe storage, and regular care, your diamond can keep its original appearance for many years.
FAQs
1. Can real diamonds get scratched?
Yes, but only by another diamond. Everyday materials like glass, metal, or coins cannot scratch a real diamond.
2. Can sandpaper scratch a diamond?
No. Sandpaper is not hard enough to scratch a diamond, although it may leave residue on the surface that can be cleaned away.
3. Will baking soda scratch diamonds?
No. Baking soda will not scratch a diamond. However, it should be used gently, as it may affect certain jewellery settings or metals over time.
4. Can a diamond scratch another gemstone?
Yes. Since a diamond is the hardest natural material, it can scratch all other natural gemstones, including sapphire, ruby, and emerald.
5. Can heat damage a diamond?
Extreme heat or sudden temperature changes can damage a diamond, especially if it has internal inclusions or existing weak points.
6. Does diamond size affect scratch resistance?
No. A diamond's scratch resistance depends on its hardness, not its size or carat weight.
