Golden Jubilee Diamond

Record: The Largest-Faceted Diamond Ever Cut In 1985, a worker at the Premier mine of South Africa discovered a large brown diamond the size of 755.5 carats (151 g.)  It was one of the largest diamonds ever unearthed, but was initially considered something of an ugly duckling. It even had the nickname of “Unnamed Brown.” The […]

Neelanjali Ruby

Record: The Largest Double-Star Ruby In The World Some rubies show a twelve-point asterism, or “star,” on its surface. It is a rare occurrence so, when jewels are found with an asterism, they become much more valuable.  The double-star ruby occurs when the asterism is seen from both sides of the jewel, which is even more rare […]

 Bahia Emerald

Record: The Largest Single Shard Of Emerald Ever Discovered Currently, the largest single shard of emerald ever discovered is the Bahia Emerald, which consists of a huge amount of emerald crystal cylinders, embedded in a host rock that weighs the equivalent of 1.9 million carats. Recently, the Bahia Emerald has received an appraisal as high […]

Strawn-Wagner Diamond

Record: The Only Diamond To Receive A Perfect AGS Grade Of 0/0/0 Crater of Diamonds is a US State Park located in Pike County, Arkansas. In 1990, the most marvelous discovery ever made there, was made when Shirley Strawn found the Strawn-Wagner Diamond.  Originally, the diamond weighed 3.09 carats (620 mg) but, after it was […]

Olympic Australis

Record: The Largest And Most Valuable Opal In 1956, the largest and most valuable opal in the world was found at the Eight-Mile opal field, in the mining town of Coober Pedy in South Australia. It was discovered at a depth of 9.144 meters (29 feet,) and was named the Olympic Australis opal, due to the Olympic […]

American Golden Topaz

Record: The Largest-Cut Yellow Topaz In The World The American Golden Topaz currently holds the record for the largest piece of cut yellow topaz in the world.  More importantly, it is one of the largest faceted gems of any kind.  It is sized at 22,892 carats (4.5785 kg) and has 172-facets (flat-faced cuts applied to […]

Graff Pink Diamond

Record: The Most Expensive Gem Ever Sold At Auction Some of the most valuable gems in the world are colored diamonds that have been graded (D) and flawless. One such diamond was discovered in the 1950s, when American jeweler Harry Winston purchased a rare pink diamond from an unknown collector.  The diamond was 24.78 carats in size, […]