As the creators of The Mrs. Box®, we are passionate about celebrating one of love’s most significant symbols—the engagement ring! Our newest creation, The Gem Pen™ is the perfectly safe accompaniment for any ring—diamond, gemstone, or pearl! You’ll love how our pocket-sized cleaner keeps your gem sparkly and clean while on the go. Whether you are newly engaged or celebrating decades of marriage, The Mrs. Box® and The Gem Pen™ are the perfect combination to keep your commitment’s most symbolic treasure looking flawless. 100% all-natural and biodegradable. Contains no ammonia or alcohol. Safe enough for daily use on all fine, antique, and costume jewelry, including pearls, opals and gemstones.