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A prong set diamond in a gold ring.. Prong setting or prong mount refers to the use of metal projections or tines, called "prongs", to secure a gemstone to a piece of jewelry.A prong setting is one component of what is known to jewelers as a head, a claw-shaped type of binding (typically three, four, or six individual prongs per head) that is welded or soldered to a jewelry item to mount (or ...
Prong set diamonds. A prong setting is the simplest and most common type of setting, largely because it uses the least amount of metal to hold the stone in place, displaying most of the stone and forming a secure setting. Generally, a prong setting is formed of a number of short, thin strips of metal, called prongs, which are arranged in a ...
Princess cut diamond set in a ring. The princess cut (technical name 'square modified brilliant') is a diamond cut shape often used in engagement rings. The name dates back to the 1960s, while the princess cut as it exists was created by Betazel Ambar, Ygal Perlman, and Israel Itzkowitz in 1980.
Punjab Board of Investment & Trade (PBIT) was established in 2009 by Salmaan Taseer, the governor of Punjab.The first vice chairman and CEO was Haroon Khawaja. [1] PBIT is a government-owned company that is operated and managed by a Board of Directors (BOD) composed of members from the government and the private sector.
The chapter describes scientific and professional examination of the Koh-i-Noor and how it was cut. There is a summary of David Brewster's critique of the diamond. Garrard & Co contracted the Dutch diamond company Mozes Coster to plan for cutting the diamond. Maudslay, Sons & Field provided an engine to grind it. James Tennant oversaw the process.
Tension ring. A tension ring is a type of finger ring that holds a gemstone in place by pressure rather than prongs, a bezel or other mounting. The metal setting is actually spring-loaded to exert pressure onto the gemstone, and tiny etchings or grooves in the metal create a shelf that supports the gemstone's edges.
A district of the Punjab state of India is an administrative geographical unit, headed by a District Magistrate or Deputy Commissioner, an officer belonging to the Indian Administrative Service. The District Magistrate or the Deputy Commissioner is assisted by a number of officers belonging to Punjab Civil Service and other state services.
That diamond had a 428 carat pre-cut weigh, and it weighed 234.65 carats in its final setting. [3] It is the largest cushion-cut yellow diamond and the 2nd largest yellow faceted diamond in the world. The necklace also contained seven other large diamonds ranging from 18 to 73 carats, and a number of Burmese rubies. [4]
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