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Colored and Colorless Diamonds. 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.
Each grid has the clarity options on the horizontal line and the color options on the vertical line. In order to calculate the price of a diamond according to the Rapaport Price List, you need to know the size, color and clarity of the diamond. The price listed based on this information is in hundreds of dollars per carat. [3]
Diamond-weighing kit, with weights labelled in grams and carats. The carat (ct) is a unit of mass equal to 200 mg (0.00705 oz; 0.00643 ozt), which is used for measuring gemstones and pearls.
IGI provides independent grading reports, colored stone reports, identification and appraisal reports, diamond authentication and attestations of origin, and laser inscription services. They also offers diamond and colored stone courses through IGI's Schools of Gemology. [7] Graduates from the IGI school of Gemology are awarded an IGI Diploma.
De Beers has a huge sway on diamond prices as it’s still a significant player in the market. However, it has repeatedly cut diamond prices in the hopes of attracting more buyers, painting a ...
Mining in Egypt has had a long history that dates back to predynastic times. Active mining began in Egypt around 3000 BCE. Active mining began in Egypt around 3000 BCE. Egypt has substantial mineral resources , including 48 million tons of tantalite (fourth largest in the world), 50 million tons of coal , and an estimated 6.7 million ounces of ...
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Discovered in 2015, it is the 5th largest diamond ever discovered at the Crater of Diamonds State Park, Arkansas Identified as a Type IIa crystal, the 8.52 carat diamond was cut and polished by Mike Botha into a custom-designed 4.605 carat Triolette shape during a week long event in North Little Rock and was graded a D IF, 0 Polish & 0 Symmetry ...