Generally the only acceptable types of inclusions in cut tourmalines are the tubes that when densely packed produce a cat s eye effect in cabochons. Today discoveries of tourmaline of various kinds are made in afghanistan mozambique namibia nigeria pakistan tanzania the united states and other countries. This green tourmaline makes a great collector specimen of gem grade natural tourmaline just as it is or it could be faceted into a single fine quality dark green tourmaline gemstone weighing 20 carats. This month s featured gems. We are mining and hunting specimens all the time.
We specialise in namibian specimens and gemstone facet cab rough for sale. Just send me and email. If you want something special. Over 100 new items. Prices rise sharply for large sizes of facet quality rough gems because they are rare.
Tunduru australian sapphire congo tourmaline ethiopian opal california garnets more. Rarely it is colorless. The specimen displays tourmaline s characteristic columnar form. Hobby faceters cutters private collectors and dealers welcome to contact. We understand faceting material from namibia tourmaline demantoid etc very well.
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Tourmaline is a gemstone full of energy color and life. Usually iron rich tourmalines are black to bluish black to deep brown while magnesium rich varieties are brown to yellow and lithium rich tourmalines are almost any color. For fashioned gems of similar color and clarity the price per carat generally increases as the gems pass the five carat milestone. These provide the market with a constantly changing supply of gem tourmaline and mineral specimens. The miners today sell much of their best production as mineral specimens.Even though tourmaline specimens can reach spectacular sizes these are rare. A gemstone spectrum brian c. Tourmalines are unique in their variety of colors the entire rainbow is covered and unusually two or even three color specimens can be found. This beautiful tourmaline mineral specimen is from california. Fantastic pink tourmaline crystal with quartz with other minerals.
Tgrm377 natural color green tourmaline crystal weighs 8 92 carats. Gem grade green tourmaline crystal 1 75 inches long. The eye in a cat s eye tourmaline can be very strong especially when set against a richly colored gem. Tourmaline crystals are often cracked and flawed which puts a premium on clean gemstones especially those over 10 carats in weight. Has a variety of colors.
Has a variety of colors. Tgrm377 natural color green tourmaline crystal weighs 8 92 carats. Even though tourmaline specimens can reach spectacular sizes these are rare. Tourmaline is a gemstone full of energy color and life. Tunduru australian sapphire congo tourmaline ethiopian opal california garnets more.
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Tourmaline crystals are often cracked and flawed which puts a premium on clean gemstones especially those over 10 carats in weight. We specialise in namibian specimens and gemstone facet cab rough for sale. Generally the only acceptable types of inclusions in cut tourmalines are the tubes that when densely packed produce a cat s eye effect in cabochons.
