soft-spoken adjective. âº usually âspeaking in a âquiet âvoice: a soft-spoken, âunderstated âstyle. (Definition of soft-spoken from the Cambridge Academic Content Dictionary Â© Cambridge University Press).
The laser drilling process involves the use of an infrared laser (of surgical grade at a wavelength about 1064 nm) to bore very fine holes (less than 0.2 millimeters or 0.005 inches in diameter) into a diamond to create a route of access to a black carbon crystal inclusion.
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.