Most everyone is immediately awed by a big sparkler. But that awe is often forgotten if, on closer examination, a diamond is severely included.
Spread is a term that refers to the observed dimensions of a diamond, i.e., the diameter, or the length and width. Some cutters are charged with getting the maximum carat weight from a rough diamonnd crystal.
Spread usually = "dead". Significant light won't return to the eye. Angles of facets will let light pass through the pavilion of a diamond rather than reflecting back toward the crown and table.
A well cut 2 carat diamond won't appear to be twice the size of 1 carat. Why, it's 3 dimensional and needs to have a proportionate depth to diameter ratio.
A confused explanation follows. A well-cut round brilliant diamond of
- 1 carat will have a diameter of 6.5 mm
- 2 carat will have a diameter of 8.2 mm
- 5 carat should "look" about 2 times as large as a 1 carat and will have a diameter of 11.0 mm
- To get "twice the diameter" - a 13 mm will be 8.35 carats! Of course it will "look" about 4 times the size of a 1 carat.
If you can buy a .90 carat VVS2 for anywhere near the same price as a 1.00 carat VS1, you get a higher quality diamond, that falls just under a pricing threshold, and appear to be very slightly smaller.
The .90 carat will be 6.2 mm, compared to the 6.5 mm of the 1.00 carat. That is a difference of only 0.3 mm!
Of course it is likely that you will pay a bit more for a .90 carat VVS2 than for a 1.00 carat VS2 ..
But if you shop better, you may not.
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