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The diamond cut planning stage is a complex process that requires the cutter to work with unique rough stones. Very often, the location of the inclusions in a rough stone will determine the type of shape to which a diamond may be cut. For economic reasons, most diamonds are cut to retain weight instead of maximizing brilliance. [2]
An example of this is the marquise cut diamond which was popular in the 1970s to 1980s. In later decades, jewelers had little success in selling this shape in comparison to other shapes like the oval or pear shape. [citation needed] The marquise can be cut into an oval diamond by any diamond cutter with a loss of 5 to 10% in total weight.
A diamond cut is a style or design guide used when shaping a diamond for polishing such as the brilliant cut. Cut refers to shape (pear, oval), and also the symmetry, proportioning and polish of a diamond. The cut of a diamond greatly affects a diamond's brilliance—a poorly-cut diamond is less luminous.
Some jewelry experts advise consumers to buy a 0.99-carat (198 mg) diamond for its better price or buy a 1.10-carat (220 mg) diamond for its better cut, avoiding a 1.00-carat (200 mg) diamond which is more likely to be a poorly cut stone.
A gemcutter may cut and polish diamonds for industrial purposes, and be designated as an industrial diamond polisher. The Mohs hardness scale [25] is a commonly used tool in lapidary to help measure a mineral's scratch hardness. A mineral's scratch hardness is measured by seeing how easily scratched it is, and what other minerals on the Mohs ...
The piece featured 225 diamonds with a total weight of 22.5 carats. Related: Pamela Anderson Glows in Makeup-Free Moment at 2025 Golden Globes, Reveals She Has 'No Glam Team': 'Just Me'
Diamond giant De Beers has seen its stockpile reach $2 billion, the biggest since the 2008 financial crisis, according to the Financial Times. "It’s been a bad year for rough diamond sales."
Gold ring with Old European cut diamonds, late 1800s, Hallwyl Museum. The earliest diamond cutting techniques were simply to polish the natural shape of rough diamonds, often octahedral crystals. [1] Around the 1500s, polishing and cutting inventions made it possible to shape diamonds better, cut facets and make the stones sparkle more. [2]
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