Gemstone Enhancement

    Colored gemstones are customarily treated to enhance their color and durability. The following two treatments and enhancements are expected and accepted by the jewelry industry.

    Heating: This is a widely accepted enhancement process used on most gemstones to improve transparency and color. Heating is considered a permanent treatment, and heated stones do not normally require any special care.

    Oiling: Oiling is an old and still widely accepted enhancement process used on most emeralds to enhance clarity and hardiness. Ultrasonic machines, steaming and harsh jewelry cleaners should be avoided. Almost all emeralds today have been oiled.

    Seville Jewelry London will not sell any synthetic or lab created gemstones, ever - no questions asked.