Every diamond is a unique creation of pressure, composition, and time. Each of these valuable stones has a variety of factors which affect price, including size, shape, c
How Diamonds Are Graded By GIADiamonds are submitted for GIA certification by the diamond's current owner (usually the diamond cutter or dealer, but often a retailer or sometimes even the end consumer).A diamond is submitted by the owner (left) and checked in by GIA client services (right)...
Only buy a diamond graded by GIA and AGS to ensure you receive the quality advertised. Online diamond stores offer prices as much as 50% less than big name jewelry retailers. Do you feel ready to shop for an engagement ring now? Picking a diamond is part emotion and part science. It's...
For diamonds with a polish grade of Excellent to Good, any polishing defects are not visible to the naked eye, and should have no impact on the diamond's overall appearance. For diamonds withclaritygrades of I1 or lower, even a polish grade of Fair is acceptable, since these diamonds alre...
Only buy a diamond graded by GIA and AGS to ensure you receive the quality advertised. Online diamond stores offer prices as much as 50% less than big name jewelry retailers. Do you feel ready to shop for an engagement ring now? Picking a diamond is part emotion and part science. It's...
Since light source and background can have a significant impact on the appearance of color, the diamond’s color is graded in a standardized viewing environment. Color graders submit their independent opinions into the system. During this phase, graders are not privy to color opinions entered prev...
a他于1968年4月4日下午被谋杀 He is murdered in the afternoon in April 4, 1968[translate] aA 0.06 foot – 0.10 foot non-structural wearing course (such as an open graded friction course) may be added, but is not to be considered part of the overlay requirements. 一只0.06脚- 0.10脚non-...
A cut is formulated using the proper mathematical symmetry, it is the alignment of the facets. If the alignment is not proper, the diamond will not refract the maximum light. The diamond symmetry too can be graded as Poor, Fair, Good, Very Good, or Excellent. The light travels ...
<i>Not all valuable diamonds are colorless or white. In fact, a variety of minerals, from nitrogen to boron, can affect a colored diamond's hue – as well as its value.</i>
Find out how symmetry affects the appearance and price of a diamond. Understand how diamond symmetry is graded by GIA, and when symmetry is most important in the selection of a diamond.