Diamond is the hardest natural material on earth — but that doesn't mean diamond jewelry needs no care. Daily wear lets oils, skincare and dust build up under the stone, dulling its sparkle, while metal settings and prongs can loosen over time. This guide shows you how to clean correctly at home, and when to leave it to a professional.
Why a diamond ring looks "dull"
A diamond itself doesn't degrade, but its sparkle comes from light passing through and reflecting back. When the underside collects oil and grime, light can't enter and the diamond looks grey and lifeless. So a "dull" ring usually just needs cleaning.
Cleaning at home: three simple steps
- Mild soapy water: add a little gentle detergent to warm water and soak the jewelry for 20–30 minutes.
- Brush gently: use a soft toothbrush to lightly brush under the stone and around the prongs — where grime collects most.
- Rinse and pat dry: rinse off the suds and pat dry with a lint-free soft cloth to avoid scratches.
Clean every two to four weeks, depending on how often you wear it.
Daily wear precautions
- Last on, first off: put the ring on after makeup, skincare and perfume; take it off before chores, exercise or swimming.
- Avoid chemicals: bleach and chlorine (pools) can damage the metal setting.
- Store separately: a diamond is hard and can scratch softer metals or gemstones if mixed with other jewelry.
- Check the prongs: watch for any looseness in the centre stone; catching it early prevents losing a stone.
When to see a professional
Home cleaning handles everyday sparkle, but see a professional for:
- loose or bent prongs
- deep cleaning or polishing
- resizing
- a regular professional inspection (once a year recommended)
Roselle Jewelry provides a lifetime warranty and professional cleaning for our customers. Whether your jewelry is from our engagement rings or lab grown diamonds, visit our Tsim Sha Tsui and Causeway Bay boutiques and let us restore its sparkle.
Frequently asked questions
How often should I clean my diamond ring?
Every two to four weeks at home depending on wear, plus a yearly professional inspection and deep clean.
Can I use toothpaste to clean a diamond?
Not recommended. Toothpaste is abrasive and can scratch the metal setting. Mild soapy water with a soft brush is safe and effective enough.
Is caring for a lab grown diamond the same as a natural one?
Identical. A lab grown diamond matches a natural diamond in hardness and durability, so cleaning and care are the same.
Can I wear my diamond ring while swimming or doing chores?
Not recommended. Chlorine and cleaning chemicals can damage the metal setting, and impact can loosen prongs. Take it off first to be safe.
