Check out the Quadrillion Cut...
They are rather incredible stones.. much more brilliant and dispersive than the standard princess cuts.
They do cost more since the cutter has to lose more in the cutting.
http://www.ambar-diamonds.com
rockdoc
FORGOT something/ Am I about to get swindled?
Started by
RockDoc
, Aug 07 2000 02:55 PM
2 replies to this topic
#2
timlaw
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- Member
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- 25 posts
Platinum
Posted 08 August 2000 - 04:06 PM
Now I'm confused....... what is the difference between a quadrillion, a princess, and a radiant? And... what table & depths are considered ideal?
TL
TL
#3
RockDoc
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- Member
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- 49 posts
Opal
Posted 09 August 2000 - 11:37 AM
The Quadrillion is a trademarked /patented cut developed by Ambar Diamonds.
The rest of the industry see how nice these were decided to knock off the basic design by altering the faceting pattern slightly.
However Quadrillions have great fire and brilliance for a square cut stone, and those knocking off this design leave extra weight on the belly of the princess cut.. Many times the crowns are very shallow too, with huge tables.
There is no set of "ideal" proportions for these stones...
However I recommend a MIMIMUM or 10% crown height, and not crown angles that are shallow, and pavilions that aren't deep. They are very hard to find, because the cutters want to convince the buying public that the extra weight left on, saves them money. Yes they do cost less per carat, but leavint he extra weight on kills the liveliness of the stone, especially in extreme cases.
However proportion numbers don't always work for these stones. They need to be checked by an expert.
We just compared two stones, not long ago, and the stone with the "good" numbers was a lifeless dud. The other stone which did not have numbers as "good" looked far better.
Rounds are a lot more predictable than fancy shapes.
rockdoc
The rest of the industry see how nice these were decided to knock off the basic design by altering the faceting pattern slightly.
However Quadrillions have great fire and brilliance for a square cut stone, and those knocking off this design leave extra weight on the belly of the princess cut.. Many times the crowns are very shallow too, with huge tables.
There is no set of "ideal" proportions for these stones...
However I recommend a MIMIMUM or 10% crown height, and not crown angles that are shallow, and pavilions that aren't deep. They are very hard to find, because the cutters want to convince the buying public that the extra weight left on, saves them money. Yes they do cost less per carat, but leavint he extra weight on kills the liveliness of the stone, especially in extreme cases.
However proportion numbers don't always work for these stones. They need to be checked by an expert.
We just compared two stones, not long ago, and the stone with the "good" numbers was a lifeless dud. The other stone which did not have numbers as "good" looked far better.
Rounds are a lot more predictable than fancy shapes.
rockdoc
