How to Clean Ruby: The Right Method and Mistakes to Avoid

Quick Answer

Natural, unheated ruby is relatively easy and safe to clean because of its high hardness (Mohs 9) — mild soap and water with a soft brush is enough. But if the ruby has undergone a treatment such as fracture-filling, it’s essential to avoid ultrasonic and steam cleaners.

Introduction

Thanks to its hardness, ruby is one of the easiest navratna gemstones to care for. But thinking “it’s hard, so nothing can damage it” is a mistake — especially when the gemstone has been treated. This guide explains how to clean ruby safely and which methods to avoid.

The Safe Way to Clean at Home

1. Mix a little mild dish soap into a bowl of mildly warm water.
2. Soak the ruby in it for a few minutes.
3. Gently clean around the setting with a soft toothbrush or brush.
4. Rinse with clean water and pat dry with a soft, lint-free cloth.

Ultrasonic and Steam Cleaners — When Safe, When Not

For an untreated natural ruby, ultrasonic and steam cleaners are generally considered safe, because ruby’s high hardness lets it withstand vibration and heat. But if the ruby has undergone a treatment like fracture-filling (filling cracks with glass or resin) — a common practice in the market — the vibration of an ultrasonic cleaner or the heat of a steam cleaner can damage this filling. Always check the certificate for treatment details; if you don’t know, stick to the safe method.

What to Avoid

• Bleach and harsh chemicals: Can damage the metal of the setting (especially fine gold/silver work).
• Hard brushes or scrubbing: Even though ruby itself resists scratching, the surrounding setting can be damaged.
• Sudden temperature changes: Avoid moving straight from hot water to cold water.
• Ultrasonic cleaners when treatment status is unknown: Avoid ultrasonic/steam cleaners until the treatment has been confirmed.

Quick Facts

Situation	Ultrasonic/Steam Cleaner	Safe Method
Unheated ruby	Generally safe	Soap and water is also enough
Fracture-filled ruby	Unsafe	Mild soap and water only
Treatment status unknown	Not recommended	Mild soap and water only

Expert Tip: If you don’t have a certificate for your ruby or don’t know its treatment details, always use the safest method (mild soap and water) — it’s safe for a ruby in any condition.

Buying Advice

When buying a ruby, be sure to check the treatment details on the certificate — this not only gives you a sense of the right price, but also helps you choose the correct care method later on. Contact us for quotations on certified rubies.

Key Takeaways

• Ruby is hard, but the cleaning method should differ depending on its treatment.
• Avoid ultrasonic/steam cleaners for fracture-filled rubies.
• Mild soap and water with a soft brush is safe for any situation.
• Always avoid harsh chemicals and sudden temperature changes.

Conclusion

With proper care, a ruby can keep its shine for years. When in doubt, always go with the safest and simplest method — mild soap and water is never the wrong choice.