Material Guide

Materials & Care Guide

At Kosiner Jewelry, we prioritize your comfort and safety. All our jewelry is 100% free from nickel, lead, and cadmium, ensuring a refined and hypoallergenic experience through sustainable craftsmanship.


Titanium

Crafted from medical-grade titanium, these pieces are specifically tailored for sensitive skin. Our flat-back earrings offer lightweight strength and corrosion-resistant comfort, making them ideal for long-term, effortless wear.

Care Tips: Wipe with a damp cloth. Occasionally use warm, soapy water for a deeper clean and store in a soft pouch to maintain its natural shine.

18K Gold & Rose Gold Plated

Featuring a 925 Sterling Silver base, our plated jewelry is enhanced with an e-coating for lasting brilliance and hypoallergenic comfort, delivering affordable elegance for any occasion.

Care Tips: Wipe with a soft, dry cloth. Avoid contact with water, lotions, or perfumes. Store in an airtight pouch and remove before swimming or intense workouts.

925 Sterling Silver

Composed of 92.5% pure silver and a 7.5% copper alloy, our silver is made from 95% recycled materials. Each piece is stamped with "925" to guarantee authenticity and a brilliant, durable shine.

Care Tips: Frequent wear actually helps reduce tarnish. Polish regularly with a silver cloth and avoid harsh chemicals like chlorine.

14K Gold

Our 14K gold offers a warm, durable hue designed for daily luxury. We use a blend of 90% recycled and 10% responsibly sourced gold to ensure beauty with a conscience.

Care Tips: Wipe with a soft, damp cloth for daily maintenance. Store in a cool, dry place separately from other jewelry to prevent scratches.

Vermeil

Gold Vermeil features a thick 2.5-micron layer of 18K gold over a sterling silver base. Made with 95% recycled materials, it perfectly mirrors the warm tones and longevity of solid 18K gold.

Care Tips: Gently wipe with a soft cloth after each wear. Clean with lukewarm soapy water when needed and store separately to prevent oxidation.

Lab-Grown Diamonds

Created via CVD technology, our diamonds feature VS clarity and F–G color. They match the physical brilliance of natural diamonds while significantly reducing environmental impact.

Care Tips: Clean with a soft brush and mild soapy water, then rinse thoroughly. Store in a lined jewelry box to avoid scratching the stones or other metal.