Always store your gemstones separately to avoid scratches from harder gems. If possible, store each piece in a separate box. Soft stones like lapis lazuli, malachite, turquoise, amber and opal can easily be scratched by pin stems and the edges of other jewelry. Protect these gemstones by wrapping them in jeweler's tissue and storing them separately.
Make sure that gemstone jewelry is stored away from direct sunlight because a lot of gemstones, like amethyst, citrine and smoky quartz, can fade in sunlight. Opals also require extra special care.
It is not advisable to put an opal ring on the window sill when washing your hands or the dishes, since strong sunlight can dry out the water in opal, which can cause hazing or color change. Heat should also always be avoided with regard to opal. Pearls should also be treated with particular care, since scratches, perfumes and household chemicals can wear away the nacre or cause color change quite easily. Emerald gemstones should also never be stored near heat.
ALL CONTENT IS FROM: "GemSelect Natural Gems Only." GemSelect. N.p., n.d. Web.