Soft gemstones possess a unique beauty — glowing iridescence, rich organic luster, and vivid color — but they require more thoughtful care than harder stones like diamond or sapphire. Understanding how to properly maintain soft gemstones ensures they remain beautiful for years without unnecessary damage.
In this guide, we’ll explore how to care for softer stones and protect your jewelry investment.
What Are “Soft” Gemstones?
Gemstones are measured on the Mohs Hardness Scale, which ranks minerals from 1 (very soft) to 10 (extremely hard). Stones ranking below about 7 are generally considered more vulnerable to scratches, abrasion, or impact damage in everyday wear.
Common soft or delicate stones include:
- Opal (5.5–6.5)
- Pearl (2.5–4.5)
- Tanzanite (6–7)
- Turquoise (5–6)
- Moonstone (6–6.5)
- Emerald (7.5–8 but often included)
Even stones that appear durable on the Mohs scale, like emerald, may be fragile due to internal inclusions or natural fractures.
Why Soft Stones Need Extra Care
Soft gemstones are more susceptible to:
- Surface scratches
- Chipping from impact
- Abrasion from everyday contact
- Chemical damage
- Heat or moisture sensitivity
- Loss of polish or luster
For example, pearls are organic and can dull when exposed to perfumes, while opals can crack if exposed to extreme dryness or sudden temperature shifts.
Daily Wear Guidelines
1. Put Jewelry on Last
Always apply:
- Makeup
- Lotion
- Perfume
- Hair products
Before putting on gemstone jewelry. Chemicals can damage porous or delicate stones like pearl and turquoise.
2. Remove Before Activities
Take off soft gemstone jewelry before:
- Exercising
- Cleaning
- Swimming
- Gardening
- Showering
- Washing dishes
Water, chlorine, and cleaning agents can damage or weaken stones and settings.
3. Avoid Hard Contact
Soft stones scratch easily. Avoid knocking rings against countertops, metal objects, or other jewelry.
If you wear rings daily, consider:
- Rotating jewelry
- Choosing protective settings (bezel or halo)
- Wearing softer stones in pendants or earrings instead of rings
Cleaning Soft Gemstones Safely
Gentle Cleaning Method
- Use lukewarm water
- Add mild, fragrance-free soap
- Use a very soft cloth or soft brush
- Rinse carefully
- Pat dry with a lint-free cloth
Never soak porous stones for long periods.
Avoid These Cleaning Methods
Do not use:
- Ultrasonic cleaners
- Steam cleaners
- Harsh chemicals
- Abrasive brushes
- Jewelry dips
These can crack, discolor, or permanently damage softer gemstones.
For example:
- Ultrasonic cleaners can fracture tanzanite.
- Steam can damage emeralds, especially if treated with oils.
- Chemicals can erode pearl nacre.
Storage Tips
Proper storage is just as important as proper wear.
- Store each piece separately in a soft pouch or lined box
- Keep stones from touching harder gemstones like diamond
- Avoid extreme temperature changes
- Store opals in a slightly humid environment if possible
Pearls should not be stored in airtight plastic for long periods — they benefit from occasional air exposure.
Special Considerations by Stone
Opal
- Avoid dryness and sudden temperature changes
- Keep away from chemicals
- Consider occasional light humidity storage
Pearl
- Wipe with a soft cloth after each wear
- Restring necklaces periodically
- Avoid perfume and hairspray exposure
Tanzanite
- Avoid impact
- Do not use ultrasonic cleaners
- Store separately from harder stones
Turquoise
- Avoid oils and cosmetics
- Do not soak in water
- Keep away from prolonged sun exposure
Emerald
- Avoid steam cleaning
- Professional inspection recommended
- Re-oiling may be needed over time
Protective Settings Matter
Soft stones benefit greatly from secure settings such as:
- Bezel settings (metal surrounds the stone)
- Halo settings (protective outer stones)
- Low-profile mountings
- Thicker prongs
Jewelry design plays a major role in longevity.
How Often Should You Inspect Soft Stone Jewelry?
Have frequently worn pieces inspected by a jeweler once per year to:
- Check prongs
- Ensure stones are secure
- Identify surface wear
- Evaluate treatments
Early detection prevents costly damage.
Final Thoughts
Soft gemstones require more attention — but their beauty is worth it. With proper care, gentle cleaning, and mindful wear, stones like opal, pearl, turquoise, and tanzanite can last for generations.
The key is simple:
Be gentle. Avoid chemicals. Store carefully. Inspect regularly.
GMR
Gems and Minerals Rock shares crystal knowledge, rockhounding adventures, helpful guides, and stories from beneath our feet.