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The collection contains works published from 1496 to the present, encompassing the history and modern development of gemology. Subjects include natural and synthetic gemstones, gem treatments, jewelry design, manufacturing, and marketing. The Liddicoat Library is open to the public and the jewelry trade for on-campus research.
The investment parameter of diamonds is their high value per unit weight, which makes them easy to store and transport. A high-quality diamond weighing as little as 2 or 3 grams could be worth as much as 100 kilos of gold. This extremely condensed value and portability does bestow diamonds as a form of emergency funding.
Argyle diamond mine The open pit of the Argyle diamond mine. A large mining truck is visible on the road for scale. Location Argyle Diamond Mine Location in Australia Location Lake Argyle State Western Australia Country Australia Coordinates 16°42′44″S 128°23′51″E / 16.71222°S 128.39750°E / -16.71222; 128.39750 Production Products Diamonds History Opened 1985 Closed ...
The color of a diamond also plays a role in its value, with colorless diamonds given the greatest value. There are pink, yellow, blue and even black diamonds. Although these are less common than ...
The value of a diamond gemstone depends upon colour and quality, as well as weight. As of April 2024 the average price per carat of diamonds of between 1.00 and 1.49 carats was US$4,448. [49] The price of diamonds dropped significantly from a peak in 2022; prices of natural gems in shops dropped by 26% by the beginning of 2025.
The company acquired Letšeng diamond mine in 2006, and has since found five of the 20 largest known white gem quality diamonds, elevating the mine to the highest dollar-per-carat kimberlite diamond operation in the world. [4] The company was first listed on the London Stock Exchange in 2007. [5]
The diamond was discovered by William P. “Punch” Jones and his father, Grover C. Jones, Sr. while pitching horseshoes in April 1928. Believed to be simply a piece of shiny quartz common to the area, the stone was kept in a wooden cigar box inside a tool shed for fourteen years throughout the Great Depression.
Emerald of Saint Louis, [5] 51.60 carats cut; discovered in Austria, probably Habachtal, resides in the National Museum of Natural History, Paris Gachalá Emerald [ 6 ] Mogul Mughal Emerald , 217.80 carats cut; mined in Colombia and cut in the Mughal empire in Hijri year 1107 (1695–1696), resides in the Museum of Islamic Art, Doha , Qatar [ 7 ...
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