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Luxottica. Luxottica Group S.p.A. is an Italian eyewear conglomerate based in Milan. As a vertically integrated company, Luxottica designs, manufactures, distributes, and retails its eyewear brands all through its own subsidiaries. The company, presently organized as a subsidiary of EssilorLuxottica which formed when the Italian conglomerate ...
LensCrafters. LensCrafters is an international retailer of prescription eyewear and prescription sunglasses. Its stores usually host independent optometrists on-site or in an adjacent store. The company has its corporate headquarters in Mason, Ohio, a suburb of Cincinnati in the US. LensCrafters has been a wholly owned subsidiary of Luxottica ...
Diamonds are beautiful, but they can be very, very expensive. This is where lab-grown diamond jewelry saves the day. A cheaper, more ethical alternative that allows you to buy more diamonds f
“The energy needed to grow lab-grown [diamonds] is enormous, so your lab-grown diamonds are only as clean as that energy source.” There have been ethical issues with diamond mining in the past.
Paradox of value. Water is a commodity that is essential to life. In the paradox of value, it is a contradiction that it is cheaper than diamonds, despite diamonds not having such an importance to life. The paradox of value (also known as the diamond–water paradox) is the contradiction that, although water is on the whole more useful, in ...
Material properties of diamond. Burns above 700 °C in air. Diamond is the allotrope of carbon in which the carbon atoms are arranged in the specific type of cubic lattice called diamond cubic. It is a crystal that is transparent to opaque and which is generally isotropic (no or very weak birefringence ).
The accessory you wear every day might as well be damn chic. Inside, shop the 10 best glasses frames for men, from Bottega Veneta, Prada, Saint Laurent, and more.
Synthetic diamond. Lab-grown diamonds of various colors grown by the high-pressure-and-temperature technique. Laboratory-grown ( LGD ), also called lab-grown diamond, [1] laboratory-created, man-made, artisan-created, artificial, synthetic, or cultured diamond, is diamond that is produced in a controlled technological process (in contrast to ...