It is one of the heaviest gemstone kinds, weighing 232.66 gm. The trigonal crystal system’s hexagonal crystalline lattice produces the color and properties, and these crystals may sometimes twin. Cinnabar has a specific gravity of roughly 8.1 and a hardness range of 2.0 to 2.5.

The symmetry and birefringence of the crystal are similar to those of quartz. Mineral Cinnabar is often found in vein-filling mineral deposits associated with recently active volcanoes and alkaline hot springs. Painite, with a weight of 586.42 gm, is one of the heaviest gemstone types in the world. Since then, other specimens have been unearthed in northern Burma. Only 25 crystals were known, and only a handful of them had been faceted. It has a hardness of 8 on the Mohs scale.

The material contains trace amounts of vanadium and chromium, as well as zirconium, boron, calcium, and aluminum. Pain discovered the rare borate mineral called painite. While working in Burma in 1954, British mineralogist A.C.D. Spessartite Garnet is one of the heaviest gemstone types with a weight of up to 10 carats (2000 milligram). Almost all of our spessartite originates from a single deposit of pure, brilliant orange material unearthed in Nigeria. The orange color is caused by manganese, however the addition of traces of iron results in a redder coloring. Spessartite, also known as mandarin garnet, ranges in color from brilliant orange to reddish-orange to orange-red. With a diameter of 14 cm and a weight of 2.1 kg, they are one of the world’s heaviest gemstone types. CupriteĬuprite is a copper oxide mineral found in the oxidized zone of copper sulfide deposits, along with native copper, chrysocolla, malachite, and azurite.Ī single unique deposit in a Namibian copper mine is reported to have produced faceted sizes of gem-quality cuprite.

Its measurements are as follows: 122.4mm x 112.3mm x 133.9mm. When exposed to long-wave ultraviolet light, the crystal generates a vivid red fluorescence that is impossible to overlook. When cut into cabochons, rubies are semi-translucent to opaque and contain rutile, which may be utilized to create a six-ray star pattern. This one-of-a-kind natural ruby crystal weighs 8.2 pounds or 18,696 carats and is unique. The finished stone weighed 31,000 carats (6.2 kg), making it one of the world’s heaviest faceted topaz and gemstones. After it had been cut and polished to its ultimate form, the jewel weighed just six kilos.Īs a consequence, the cutting procedure resulted in a loss of around 83 percent of the original raw stone’s weight. Miners in Minas Gerais, Brazil, discovered an astonishing 37 kg of unpolished “El-Dorado Topaz” in 1984, making it the largest faceted semi precious gemstone ever discovered. The finders crushed down the rough stone to a pearl shape over the period of three years. It is estimated to be worth two billion yuan ($301.197 million), with pearls being more valuable in China than diamonds.įluorite, which glows green in the dark and is more precious than diamonds in China, is the country’s most prized gemstone. The “pearl,” as its owners call it, is the world’s heaviest semi-precious stone, weighing six tons and measuring 1.6 meters in diameter. On eBay, emeralds have been listed for sale in the $75 million “Buy It Now” bracket. The stone has a stated value of $400 million, but no one knows for certain.

It was reported stolen from a vault in South El Monte, Los Angeles County, California, in September 2008. It is the world’s largest unfaceted valuable gemstone. The Bahia Emerald, which weighs around 840 pounds (381 kilograms) and contains more than 180,000 carats, was found in Bahia, Brazil, and is made up of emerald crystals embedded in host rock. The Premier Mine, where the Golden Jubilee Diamond was discovered, was also the location of the Cullinan diamond discovery in 1905, as well as the finding of other famous gems such as the Taylor–Burton (1966) and the Centenary diamond (1999). It weighs 15.37 carats greater than the Cullinan I. The Golden Jubilee Diamond, the world’s heaviest cut and faceted diamond, measures 57.6 carats and is the largest precious gemstone ever unearthed. Well, let’s check out the 10 heaviest gemstone types in this piece! 1. There are various gemstone types and you might be curious about the heaviest in the world amongst them. Some are too delicate or fragile to be utilized, thus they are often shown in museums and sought after by collectors. The gemstone is then cut, faceted, and polished to create jewelry or other human adornments.īecause most gemstones are quite hard, not all of them can be used in jewelry making. A gemstone is a mineral, rock, or organic substance selected for its beauty and scarcity.

Types of gems