Gem encyclopedia is a virtual journey through the science and lore of gemstones from across the globe. The gem was first discovered in the 1960s in the country of tanzania and that is the origin of the gem s name. Average retail prices dec 2020. To ensure a safe and rewarding gemstone shopping experience it is always advisable to choose a gem retailer or a gemstone website that is serving the industry since a considerable number of years and is conscious of its brand value. We are constantly working on expanding this list.
Interactive guide to the most popular gemstones. Here you will find a comprehensive list of gemstones that we sell here on gem rock auctions. In today s market there are literally hundreds of gemstones to choose from. For each gemstone we provide a detailed and comprehensive value chart which will help you evaluate its price based on the following criteria. Our value charts are based on accurate and up to date information on average retail prices.
The list of gemstones below will discuss the difference between a precious stone and a semi precious stone as well as guide you to where the gemstone treatments are discussed. Color carat weight clarity cut. Guide to precious semi precious color gemstones. Estimating weights for gemstones. But for gemstone and jewelry collectors it is sometimes useful to organize gems by color.
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Gemstone color chart the standard way to organize gemstones is by gem species corundum beryl quartz etc and variety ruby sapphire topaz spinel etc. Some important gemstones are not here yet. With over 130 gem varieties our gemstone index will help you find the perfect colored stone for your jewelry crystal healing needs. Over one carat a 0 2 mm variance can usually be accommodated sometimes more. Select and view cmc gem charts.Shown here is a violet blue tanzanite measuring 7 x 5 x 3 millimeters in size and weighing 1 02 carats antique facet cut. As a general rule gems under one carat can fall within 0 1 mm of the setting size. Gemselect s list of precious semi precious gemstones. Each gem page features gemological information a buyer s guide photos videos research. Shown here is a violet blue tanzanite measuring 7 x 5 x 3 millimeters in size and weighing 1 02 carats antique facet cut.
Each gem page features gemological information a buyer s guide photos videos research. Gemstone color chart the standard way to organize gemstones is by gem species corundum beryl quartz etc and variety ruby sapphire topaz spinel etc. The list of gemstones below will discuss the difference between a precious stone and a semi precious stone as well as guide you to where the gemstone treatments are discussed. Interactive guide to the most popular gemstones. Gem encyclopedia is a virtual journey through the science and lore of gemstones from across the globe.
