Do You Know the Pink Star Diamond Sells for $71.2 Million, Becoming the World's Most Expensive Gemstone

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Watch the 12 Most Expensive Gemstones In The World

12. Jeremejevite

Jeremejevite is an aluminum bearing borate mineral with associated fluoride and hydroxide. It was first found in the Adun-Chilon Mountains in Siberia in 1883. This gem has a similar hardness as quartz, 6.5 to 7.5 on the Mohs scale, and therefore is ideal for jewelry making. The Jeremejevite goes for about $2,000 per carat

11. Fire Opal

Fire Opal is actually not technically a mineral but instead is a mineraloid. The reason being opal does not have a crystal structure that is required for all minerals. As noted in the chemical formula, opal is a hydrated form of silica or silicon dioxide. Opals can form in a variety of different colors depending on the environmental conditions during formation. The Fire Opal goes for about $2,300 per carat

10. Taaffeite

Taaffeite is not very familiar to many due to how rare it is. In fact, it is so scarce that it’s considered to be a million times rarer than a diamond. It was discovered by gemologist Richard Taaffe in 1945 in a jeweler’s shop in Dublin, Ireland. The light violet, almost clear gemstone is the only one that has been initially identified from a faceted stone. The Taaffeite goes for about $2,500 per carat

9. Demantoid Garnet

Demantoid is a green gemstone that has a “diamond-like” adamantine luster. Fascinatingly, its brilliance and dispersion actually exceed that of a diamond’s. It is also difficult to look for a demantoid larger than 10 carats as these stones are typically small in size. With the low supply, they are only usually seen on antique jewelry pieces. The Demantoid Garnet goes for about $3,300 per carat

8. Black Opal

Opal gemstones have a different evaluation process than other gemstones with each one of them having their own distinct individuality. Compared to other opals, black (with body tones from N1 to N4) are considered rarest and most popular. Its body has a black color with a firey pattern that looks spectacular in contrast to the dark background. The Black Opal goes for about $3,500 per carat

7. Benitoite

Considered as one of the most beautiful gems, Benitoite has a striking blue body color that has a dispersion higher than a diamond. As its name, it was discovered by the headwaters in San Benito River in San Benito County, California where it’s now declared as its state gem. While it has a high dispersion, its intense blue color can mask it. The Benitoite goes for about $3,800 per carat

6. Padparadscha Sapphire

Padparadscha (pronounced pad-pah-raj-ah) sapphire, the world’s rarest sapphire, has a beautiful pinkish orange color that exhibits the mixture of the hues of ruby and yellow sapphire. Its name is derived from the Sanskrit/Singhalese word for “aquatic lotus blossom” due to its color. The Padparadscha Sapphire goes for about $8000 per carat

5. Red Beryl

Red beryl (also known as bixbite, “scarlet emerald” and “red emerald) is an extremely rare type of beryl with a raspberry pink to almost purplish red color. Despite its name, it is not an emerald but it’s an entirely different gemstone. It was first discovered in 1904 by Maynard Bixby. Meanwhile, its gem quality stones can only be found in one site – the Wah Wah Mountains in Utah. The Red Beryl goes for about $10,000 per carat

4. Alexandrite

Alexandrite is a very rare (and very hard to acquire) gemstone variety. It is popular for its remarkable optical properties: it undergoes dramatic color shifts depending on the lighting condition. This is caused by the rare combination of minerals including chromium, iron, and titanium. The Alexandrite goes for about $12,000 per carat

3. Jadeite

Jadeite is jade’s most expensive, beautiful, and rarest variety. While it can be found in many colors, its association with the rich-emerald color of “imperial jade” continues to be highly valued. The finest stones in this color can be found in Myanmar. The Jadeite goes for about $20,000 per carat

2. Musgravite

Nearing the top of the list is Musgravite, an extremely rare gemstone in the taaffeite family. The mineral was first discovered at the Musgrave Range (thus its name) in South Australia. It has shown up in other areas such as Antarctica, Greenland, and Madagascar but in highly limited quantities. As of 2005, there are only 8 known specimens of this stone to exist. The Musgravite goes for about $35,000 per carat

1. Blue Diamond

Two of the most stunning examples are the Oppenheimer Blue and the Pink Star. The Oppenheimer Blue diamond is the largest Vivid Blue diamond to appear at an auction and was sold $57.5 million for weighing 14.62-carats which makes it worth $3.93 million per carat. Meanwhile, the recent world record breaker, the Pink Star diamond, was sold at a whopping $71.2 million for 59.6-carats (or $1.2 million per carat) becoming the most expensive gemstone ever sold based on its total price.