Are lab diamonds prone to scratching or damage more easily than natural diamonds?

No. Lab-grown diamonds are not more prone to scratching or everyday damage than natural diamonds. Both are crystallised carbon with the same diamond crystal structure and a hardness of 10 on the Mohs scale, so they offer the same resistance to scratching when properly cut, set and cared for.

The important distinction is between hardness and toughness. Hardness describes resistance to surface scratching, while toughness describes how well a diamond withstands impact or pressure without chipping or fracturing. Neither lab-grown nor natural diamonds is completely immune to damage. A hard blow in the wrong place can chip either type, particularly around thin edges, sharp corners or areas with an existing inclusion.

A lab diamond’s method of formation does not make it inherently softer or more fragile. Its durability depends more on the individual stone and the jewellery design, including:

• Cut and shape: Pointed corners and very thin girdles can be more exposed to knocks than rounded edges or protective settings.
• Inclusions or internal features: Natural and lab-grown diamonds can both contain internal characteristics. A significant feature near the edge or at a point of structural stress may increase the risk of chipping.
• Setting: Prongs, bezels and other protective details help shield vulnerable edges. A secure setting also reduces movement that could expose the diamond to repeated impact.
• How the jewellery is worn: Contact with hard surfaces, tools, sports equipment or heavy manual work presents a greater risk than normal daily use.
• Maintenance: A loose claw, damaged setting or worn mount can leave the diamond less protected, even though the stone itself remains highly scratch-resistant.

Scratching is usually less of a concern than chipping or damaging the setting. Diamond can scratch other materials, including precious metals and gemstones, but diamonds can also scratch one another. Store diamond jewellery separately, or place individual pieces in soft-lined compartments, so that stones and settings do not rub against each other.

For everyday wear, remove diamond rings before activities involving impact, pressure or abrasion. This includes DIY, gardening, lifting heavy objects, contact sports and tasks where the ring may catch on equipment. It is also sensible to remove jewellery when using strong cleaning products. Household chemicals may not scratch the diamond, but they can affect the metal, surface treatments or substances used around the setting.

Routine cleaning can normally be carried out with lukewarm water, a mild washing-up liquid and a soft brush. Rinse the piece carefully and dry it with a soft, lint-free cloth. Avoid abrasive powders, stiff brushes and unapproved cleaning solutions. If the jewellery includes other gemstones, pearls or delicate finishes, use a cleaning method suitable for the complete piece rather than the diamond alone.

Check the setting periodically for movement, bent claws, worn edges or a change in the way the ring sits on the finger. If a diamond rattles, catches on clothing or appears less secure, stop wearing the piece and arrange a professional inspection. Regular servicing is particularly useful for frequently worn engagement and wedding rings, as the mount can experience wear even when the diamond shows no visible damage.

In practical terms, choosing a lab-grown diamond does not require accepting lower durability. The same care considerations apply as they do to a natural diamond: select a suitable cut and setting, protect the piece from avoidable impacts, store it separately and address signs of wear promptly. With appropriate design and aftercare, a lab diamond is suitable for everyday jewellery, including engagement and wedding rings.