Natural crystals often have inclusions, irregularities, and unique internal patterns visible under magnification, while artificial crystals usually have a more uniform appearance. Additionally, natural crystals feel cooler to the touch initially compared to artificial ones. You can also check for the presence of air bubbles, which are more common in artificial crystals.

Avoid wearing crystal jewelry during strenuous activities to prevent impacts that may cause damage. Keep crystal jewelry away from harsh chemicals like chlorine in swimming pools and strong cleaning agents, as they can corrode the surface. Also, take off crystal jewelry before sleeping to avoid accidental breakage.

For example, rose quartz is often associated with love and emotional healing, clear quartz symbolizes clarity and energy amplification, and black tourmaline is believed to offer protection and absorb negative energy. Each color of crystal has its own unique symbolic significance in crystal culture.​

One common method is to place the crystal jewelry under moonlight for several hours, especially during a full moon. You can also use a bowl of sea salt (but be cautious with some water-soluble crystals) or a crystal cluster. Another way is to smudge the crystal with sage or palo santo, allowing the smoke to cleanse the crystal.

Crystal jewelry should avoid collisions with hard objects to prevent scratching. Keep it away from chemicals such as perfume and cosmetics to avoid surface corrosion. It is recommended to wipe it with a soft cloth once a month to keep it clean. Some crystals need regular demagnetization and purification. You can place them under moonlight for irradiation or use a crystal cluster for demagnetization to maintain their "energy".

It depends on the hardness of the crystals and other jewelry materials. Soft crystals like selenite may scratch easily when worn with harder metals or gemstones. It's advisable to wear crystal jewelry separately or pair them with pieces that won't cause abrasion. Also, consider the aesthetic combination to achieve a harmonious look.

Store crystal jewelry in a soft, lined jewelry box or a separate fabric pouch to prevent scratching. Keep different types of crystals apart, especially those with significant hardness differences. Store the jewelry in a cool, dry place away from direct sunlight, as prolonged exposure may cause some crystals to fade.