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u+25c8 white diamond containing black small diamond A lozenge ( / ˈ l ɒ z ɪ n dʒ / [ 1 ] LOZ -inj ; symbol: ), often referred to as a diamond , is a form of rhombus . The definition of lozenge is not strictly fixed, and the word is sometimes used simply as a synonym (from Old French losenge ) for rhombus .
It is crystallographic twin according to the spinel twin law and is seen in octahedral crystals or minerals such as diamond and spinel. The twin law name comes from the fact that is commonly observed in the mineral spinel. Macle is an old French word, a heraldic term for a voided lozenge (one diamond shape within another).
Different diamond shapes will affect the perceived size of the diamond. Diamonds with an elongated shape, like the Oval and Marquise, often appear larger than Round cut diamonds of the same carat ...
After initial cutting, the diamond is shaped in numerous stages of polishing. Unlike cutting, which is a responsible but quick operation, polishing removes material by gradual erosion and is extremely time-consuming. The associated technique is well developed; it is considered as a routine and can be performed by technicians. [113]
A diamond cut is a style or design guide used when shaping a diamond for polishing such as the brilliant cut. Cut refers to shape (pear, oval), and also the symmetry, proportioning and polish of a diamond. The cut of a diamond greatly affects a diamond's brilliance—a poorly-cut diamond is less luminous.
A diamond with facets cut only a few degrees out of alignment can result in a poorly performing stone. For a round brilliant cut, there is a balance between "brilliance" and "fire". When a diamond is cut for too much "fire", it looks like a cubic zirconia, which gives off much more "fire" than real diamond. A well-executed round brilliant cut ...
A synonym for an undirected edge. The line graph L(G) of a graph G is a graph with a vertex for each edge of G and an edge for each pair of edges that share an endpoint in G. linkage A synonym for degeneracy. list 1. An adjacency list is a computer representation of graphs for use in graph algorithms. 2.
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