Klean Karats is the perfect stocking stuffer!! its the gift that keeps giving by keeping your jewelry looking its best! Safe for gold, silver, and platinum jewelry Safe on most gems including pearls and delicate stones like opal and turquoise The only exceptions are Amber and Ethiopian Opals Empty contents of concentrate packet into jar and add approximately 6 ounces of water. Place jewelry in basket and immerse in jewelry cleaner bath. Let soak for up to 1 minute.