(ËlÉk tÉrn) n. 1. a reading desk in a church from which the Bible lessons are read during the service. 2. a stand with a slanted top, used to hold a book, speech, etc., at the proper height for a standing reader or speaker.
How a Diamond is Formed. In order for diamond to form there must be an available source of carbon and relatively narrow ranges of temperates and pressures must align. This happens around 100 miles below the crust. Once crystalized the diamonds must be rapidly transported to the surface without undergoing substantial change.
Diamond Laser Drilling. Signs of Laser Drilling. Laser drilling typically leaves lines that resemble tiny jet trails, visible under side-view magnification. You'll see a tiny white dot when viewing the trails from the top of the diamond. A newer type of laser enhancement creates cracks around inclusions near a diamond's surface. The imperfection is removed, and the marks left behind look more like natural flaws than laser trails. Laser drilling removes inclusions permanently and does not alter the strength of a diamond. Normal cleaning and the heat produced during setting repairs won't change the appearance of the stone.