A lab-grown diamond that looked spectacular on the day you bought it can look noticeably duller after a few months of regular wearing. Not because the diamond has changed. Because diamonds attract oils, lotions, skin residue, and fine dust in a way that accumulates gradually and invisibly.
The good news is that cleaning lab-grown diamond jewellery at home is simple, takes less than ten minutes, and restores the full brilliance of the stone completely. This step-by-step guide covers exactly how to do it safely for every common jewellery type in your collection.
Why Lab-Grown Diamond Jewellery Gets Dull
A diamond's brilliance comes from its ability to refract and reflect light through its facets. When those facets are coated with a film of body oil, hand cream, soap residue, or environmental dust, the light cannot enter or exit the stone cleanly. The result is a stone that looks cloudy, flat, or simply less bright than it should.
Lab-grown diamonds and natural diamonds behave identically in this regard. Both attract the same residues, both dull at the same rate with regular wearing, and both respond equally well to the same cleaning methods. The cleaning process is about the diamond and the metal setting, not about whether the stone was grown in a laboratory or formed underground.
At Goenka Jewellers, every piece we sell is a certified lab-grown diamond set in 14K or 18K gold. The cleaning guidance in this guide applies specifically to these pieces. If you have jewellery from another source, always check the metal type and any special coatings before applying any cleaning method.
What You Need: The Basic Home Cleaning Kit
You do not need specialist equipment. Everything required for an effective home clean is already in most Indian households.
Warm water: Not hot. Hot water can loosen prong settings over time and is unnecessarily harsh. Warm is sufficient and safe.
Mild dish soap: A small drop of gentle, non-abrasive dish soap. Avoid soaps with moisturisers, strong degreasers, or abrasive particles.
A soft toothbrush: A baby toothbrush or a soft-bristle adult toothbrush that is used exclusively for jewellery. Never use a toothbrush with medium or hard bristles on jewellery.
A soft lint-free cloth: A microfibre cloth or a soft cotton cloth. Avoid paper towels, tissues, or any material that can scratch metal surfaces.
A small bowl: For soaking. A ceramic or glass bowl works well. Avoid plastic bowls, which can retain residue.
Step-by-Step: The Standard Home Cleaning Method
Step 1: Prepare the Cleaning Solution
Fill a small bowl with warm water. Add one small drop of mild dish soap and stir gently to combine. The solution should be very lightly soapy, not foamy or concentrated.
Step 2: Soak the Piece
Place the jewellery piece in the bowl and allow it to soak for 20 to 30 minutes. This softens and loosens the oil and residue film on the diamond and the metal without requiring any mechanical scrubbing. For heavily soiled pieces that have not been cleaned in several months, a 40 to 45 minute soak is appropriate.
Do not soak more than one piece at a time if they have small stones or delicate settings, as pieces can scratch each other in the bowl.
Step 3: Brush the Diamond Gently
Remove the piece from the soak and use the soft toothbrush to gently scrub the diamond and the setting. Use small circular motions on the face of the diamond and small back-and-forth strokes along the underside of the setting, where residue tends to accumulate most heavily.
Pay particular attention to the area directly beneath the diamond, especially in prong settings where a film of oil can accumulate between the stone and the setting and dramatically reduce brilliance from below.
Apply very light pressure. The soaking has done the loosening work. The brush is for displacement, not scrubbing.
Step 4: Rinse Thoroughly
Rinse the piece under warm running water, ensuring all soap residue is fully removed. Soap residue left on the metal or stone will dull the piece almost as quickly as the original grime.
Important: Hold the piece firmly and rinse over a bowl or a closed drain, never over an open sink drain. Small diamonds and delicate prongs can catch on drain covers and loosen stones.
Step 5: Dry with a Lint-Free Cloth
Pat the piece dry with a soft lint-free cloth. Avoid rubbing, which can leave micro-scratches on softer metals like 14K rose gold. Pat gently and then allow the piece to air-dry for five to ten minutes before storing or wearing.
Step 6: Inspect the Setting
Once dry, hold the piece under good light and examine the prongs or bezel setting. Check that no prongs appear bent, lifted, or thinner than the others. If a prong looks damaged or a stone feels loose when you gently tap the piece, do not wear it and bring it to Goenka Jewellers for a professional inspection and repair.
Metal-Specific Cleaning Notes
Yellow Gold Settings (14K and 18K)
Yellow gold is the most forgiving metal for home cleaning. The standard warm water and dish soap method works perfectly and can be used weekly without any concern. Yellow gold does not require any special treatment beyond the steps above.
White Gold Settings (14K and 18K)
White gold is yellow gold alloyed with white metals and finished with a rhodium plating that gives it its bright, mirror-like white appearance. Rhodium plating is durable but can wear over time with regular contact, harsh chemicals, or aggressive cleaning. Use the standard method with a very light touch and avoid any abrasive materials. If the white gold piece begins to appear slightly yellow at the edges, this is normal rhodium wear and the piece should be returned to Goenka Jewellers for replating, which is a simple and inexpensive professional service.
Rose Gold Settings (14K and 18K)
Rose gold contains copper as its primary alloying metal, which gives it its warm pink tone. Copper is slightly softer than white gold alloys, which means rose gold settings require the gentlest cleaning approach. Use the standard method with very light toothbrush pressure and a microfibre cloth for drying. Avoid any cleaning products that contain ammonia or acidic components, as these can affect the copper alloy over time.
What Not to Do: The Complete Avoid List
Avoid ultrasonic cleaners at home: Ultrasonic cleaners use high-frequency vibrations that can loosen prong settings, particularly in older pieces or pieces with pavé-set small diamonds. Professional ultrasonic cleaning at a trusted jeweller is different because they assess the piece first. Home ultrasonic cleaners should not be used on prong-set diamond jewellery without a professional assessment.
Avoid toothpaste: Toothpaste is mildly abrasive and will scratch gold metal surfaces over time. It is not appropriate for diamond jewellery cleaning despite being a commonly recommended home remedy.
Avoid bleach, chlorine, and acetone: These chemicals can damage gold alloys and can affect the surface quality of diamonds over extended exposure. Remove all diamond jewellery before swimming in chlorinated pools or using cleaning products containing these chemicals.
Avoid paper towels and tissues: These materials are more abrasive than they appear and can leave micro-scratches on gold settings. Use only lint-free cloths.
Avoid hot water: Hot water can expand metal settings slightly and loosen prongs over repeated use. Always use warm water.
How Often Should You Clean Your Lab-Grown Diamond Jewellery?
For everyday-worn pieces (rings, studs, pendants), a full soak-and-brush clean once every two to three weeks is ideal. A quick rinse under warm water and a gentle cloth buff once a week between full cleans maintains brightness.
For occasion pieces worn less frequently, clean the piece before wearing and again after, before storing. This prevents residue from setting hard during storage.
When to Seek Professional Cleaning
Home cleaning restores everyday brilliance effectively. Professional cleaning at Goenka Jewellers goes further: ultrasonic cleaning reaches areas that a home toothbrush cannot, steam cleaning removes residue at a molecular level, and a professional inspection checks prong integrity and stone security at the same time. We recommend a professional clean and inspection once or twice a year for all regularly worn pieces.
Frequently Asked Questions
Can I clean all my lab-grown diamond jewellery the same way?
The standard warm water and dish soap method works for all lab-grown diamond pieces set in 14K or 18K yellow, white, or rose gold. The only variations are in the gentleness of the toothbrush pressure required: lighter for rose gold and pavé settings, slightly firmer for prong-set solitaires in yellow gold.
How do I clean a diamond mangalsutra chain at home?
Soak the full chain and pendant in the warm soapy water solution for 30 minutes. Use the soft toothbrush to gently clean both the pendant setting and run the bristles along the chain links, where residue accumulates. Rinse thoroughly and allow to air dry flat on a cloth before wearing or storing.
My lab-grown diamond looks cloudy even after cleaning. What does this mean?
Persistent cloudiness after a thorough clean can indicate one of two things: either there is residue in an area the toothbrush could not reach (under the setting or between pavé stones), in which case a professional ultrasonic clean will resolve it, or the rhodium plating on a white gold setting has worn significantly, which requires professional replating. Visit Goenka Jewellers for an assessment if home cleaning does not restore full clarity.
Is it safe to clean lab-grown diamond jewellery with baking soda?
Baking soda is a mild abrasive. While it is often recommended for general household cleaning, it can leave micro-scratches on gold metal over repeated use. The mild dish soap and warm water method is safer and equally effective for diamond jewellery. Avoid baking soda for regular cleaning.
Can I use a commercial jewellery cleaning solution on lab-grown diamond pieces?
Many commercial jewellery cleaning solutions are safe for diamond and gold. Check that the solution is specifically safe for the metal type of your piece (yellow gold, white gold, or rose gold) and follow the manufacturer's instructions. Avoid solutions that contain ammonia for rose gold pieces. If in doubt, the warm water and dish soap method is always safe.
The Bottom Line
A lab-grown diamond piece that is cleaned regularly at home will look as brilliant on its fifth anniversary as it did on the day it was purchased. The cleaning process is simple, requires no specialist equipment, and takes less than ten minutes.
The discipline of regular home cleaning, combined with an annual professional inspection and clean at Goenka Jewellers, is everything a certified lab-grown diamond piece needs to maintain its brilliance and its setting integrity for decades.
For the complete guide to everything you should and should not do as a lab-grown diamond jewellery owner, read our Lab-Grown Diamond Jewellery Care: Essential Dos and Don'ts Every Owner Should Know. For understanding what makes a lab-grown diamond identical to a mined one, read our Lab Grown Diamond vs Natural Diamond: Which Is Winning in 2026. Then explore the complete certified lab-grown diamond collection at Goenka Jewellers.