What is the largest precious gem stone in the world?

Answer 1

funnygirlsmiles,

According to the information I can find, the largest cut precious gemstone in the world is the Rajaratna Ruby, a star ruby weighing 2475 carats. It is currently privately owned by a man in Bangalore, India.

The gemstone that the previous answerers are referring to is almost certainly the Hope Diamond, a very famous blue diamond that is housed at the Smithsonian's National Gem and Mineral Collection. But as lovely as the Hope is, it is not the largest gemstone, in fact, it is not even the largest diamond. That honor goes to the Star of Africa, a 530 carat diamond that was cut from an even larger diamond that was discovered in the Premier mine of South Africa and is currently among the British crown jewels. The Hope Diamond is, however, one of the largest known blue diamonds, which is significant because blue diamonds are quite rare and large blue diamonds are even more rare.

Answer 2

Traditionally, common gemstones were classified into precious stones (cardinal gems) and semi-precious stones. The former category was largely determined by a history of ecclesiastical, devotional or ceremonial use and rarity. Only five types of gemstones were considered precious: diamond, ruby, sapphire, emerald, and amethyst. After the discoveries of bulk Amethyst in Brazil in the 19th century, Amethyst lost its place amongst the list of precious stones.

The Golden Jubilee, is currently the largest faceted diamond in the world. The Golden Jubilee, yellow-brown diamond with an as-of today unsurpassed weight of 545.67 carats (109.13 g). Current owner is King Bhumibol Adulyadej of Thailand. The Cullinan I, Star of Africa the largest cut diamond weighed around 520 carats with about 76 facets. It is cut from the largest rough diamond that was ever found throughout history. It weighed over 3,106 carats with a weight of 1.26 pounds

At 2,475 carats (495 g), the Rajaratna Ruby is the world's largest ruby. The Rajaratna Ruby is also the world's largest star ruby with its 6 point asterism. Current owner is Mr. G. Vidyaraj and is reported to be in Bangalore, India. They were adorned in the crown of Emperor Srikrishnadevarayalu. The Eminent Star Ruby, an oval cabochon (domed) star, is the largest ruby known. This 6,465 carat-cut stone weighed over 30,000 carats in the rough. Considered of mediocre quality, the gem is believed to have come from India and is currently owned by Kailash Rawat of Eminent Gems, New York City.

The Gachala Emerald, an uncut 5-cm emerald crystal weighing 858 carats (172 g). Currently in the United States, it was donated to the Smithsonian Institution by the New York jeweler, Harry Winston. The largest uncut emerald was found in Carnaiba, Brazil in 1974. It was an incredible 86,136-carat natural beryl crystal. The stone was eventually valued at $1,120,080 USD. The largest emerald crystal ever discovered was 7,025 carats and was found in a mine in Columbia.


In 1972 the world's largest sapphire (63,000 carats) was found in the Mogkok valley, northeast of Mandalay, in Myanmar (Burma). The Logan sapphire is a flawless specimen, possesses a rich blue color and is the second largest (blue) sapphire known, weighing 422.99 carats (84.6 g). The Logan sapphire is named after Mrs. John Logan who donated the gemstone to the Smithsonian Institute in 1960. The Logan sapphire originates from Sri Lanka, a famous location for sapphires.

Answer 3

The Kohinoor Diamond, booty from one continent lands in another continent way back into pirate days, now we have piracy of 100 bucks dvds. Times have changed.

Answer 4

I forget what its called but its at the Smithsonian.

Answer 5

idk, i saw it one time in washington dc, it was so pretty like a deep shade of blue....