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Diamond clarity is the quality of diamonds that relates to the existence and visual appearance of internal characteristics of a diamond called inclusions, and surface defects, called blemishes. Clarity is one of the four Cs of diamond grading, the others being carat , color , and cut .
Diamond reports from GIA (as well as other, for-profit sources) are now demanded by most consumers purchasing diamonds over a certain size, typically for over 0.5 carat (100 mg), and almost always for over 1.0 carat (200 mg), and are considered an important tool in guaranteeing that a diamond is accurately represented to a potential buyer.
In 1841, Cadwalader Ringgold, an officer in the United States Navy, spent twenty days surveying the San Francisco Bay watershed as a member of the United States Exploring Expedition In 1849, Cadwalader Ringgold began a more comprehensive survey the San Francisco Bay region, [11] the Sacramento River, and parts of the American and created several maps which included depth sounding information ...
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South Diamond Bar is an unincorporated area [1] [2] in eastern Los Angeles County, which has been designated an agricultural zone, according to the Los Angeles County Regional Planning Department. [ 1 ]
cities; towns, unincorporated communities; counties, and other recognized places in the U.S. state of California. Information on the number and names of counties in which the place lies, and its lower and upper ZIP code bounds, if applicable are also included.
Mission Pacific Hotel. Why We Recommend It: surfing town, foodie destination Attractions We Love: California Surf Museum, Mission San Luis Del Rey Favorite Beach: Oceanside City Beach This low-key ...
Type II diamonds have very few if any nitrogen impurities. Pure (type IIa) diamond can be colored pink, red, or, brown owing to structural anomalies arising through plastic deformation during crystal growth; [20] these diamonds are rare (1.8% of gem diamonds), but constitute a large percentage of Australian diamonds. Type IIb diamonds, which ...