The strong contenders for being the rarest gemstone in the world are taafeite, musgravite and serendibite. According to the Gemological Institute of America, the so-called "rarity" of gemstones is not clearly defined, which means that determining the rarity of gemstones can be subjective.Know More
Without a doubt, gemstones are considered as such because they are rare. Apart from being hard to find or occurring only in one or two locations, a few gemstones are scarce in the sense that only a few of them are known to exist. Among these really scarce gemstones are taafeite, musgravite and serendibite.
Taafeite was named after an Irish gemologist named Richard Taaffe, who discovered it in 1945. Its color ranges from red to purple, with the former being the rarest. If one were to combine all specimens of taafeite in the world, the collection will only fill about half a cup. Experts estimate that diamonds are a million times easier to find than taafeite.
Musgravite is similar to taafeite, so similar in fact, that some believe that some taafeite may have been misidentified as musgravite. This might make musgravite even rarer, since as of November, 2014, there are only eight known specimens of it in the world.
Serendibite is only known to occur in Sri Lanka, where it was discovered by D.P. Gunasekera. Only three faceted specimens of this gemstones are known to exist as of November, 2014.Learn more about Precious Metals & Gems
Tools necessary for basic gem identification include tweezers, a 10x loupe, and a pen light or a similar light source. A refractometer, refractive index fluid and a polariscope also help with gem identification.Full Answer >
Blood diamonds, sometimes called conflict diamonds, are stones mined in areas of the world undergoing civil war or strife and sold to support warlords, insurgents or invading armies. Since diamonds are extremely valuable and portable, trading these stones is an easy way for forces to generate quick money.Full Answer >
Jade is derived from a naturally occurring mineral called jadeite, which is collected in locations all over the world, from Alaska to Guatemala and Central Asia. Jadeite comes in several different colors and forms, and it is only known as jade when used as a gem for carving or jewelry.Full Answer >
The Pink Star diamond is the most valuable gemstone in the world as of 2015, with an estimated value of $83,187,381 and the highest possible color and clarity rating. This diamond weighs 59.6 carats, or 11.92 grams, which is about $1,395,761 per carat.Full Answer >