What gemstone shape reflects the most light?

Question Asked: 20/11/2018 Wedding Date: 9/08/2018

Most Helpful Response

GS Diamonds

Australia Wide

(14) Posted: 13/04/2021

The classic shape, Round Brilliant, has the ideal facet pattern for the most light return. Round engagement rings are by far the most popular of all the shapes as they're the diamond cut that sparkles the most.

But there are also fantasy shapes that play with light in their original style!

And also oblong shapes that visually change the perception of the shape of the fingers and even the figure!

This is a very interesting topic and we would be happy to discuss it with you.

Kind regards,

GS Diamonds.

(1) Posted: 31/01/2019

Hi there,

No question the round brilliant gemstone!!  The round shape and angled sides maximise the sparkle in the stone.  It's also important to know the gemstone must be cut well in order to earn the top spot on the list.


At Everjewels our gemstones have the highest quality standard and have been cut perfectly.


See some of our brilliant pieces at www.everjewels.com

Brilliant Diamond


(2) Posted: 22/11/2018

The best of all is generally the round brilliant cut, as it reflects about 5-6% of all light entering it. This is true for most stones, Diamonds, Cubic Zirconias & Moissanites.
The reason for this, is that from MOST angles, the light entering will pass through a similar amount of gemstone material (for example Carbon in the case of a diamond), and as such, the beams of light that enter, have a good chance to come out from the table & shoulders of the gemstone (kite facets etc), at an optimal rate, there is a certain mathematical beauty in how the design of the modern round brilliant was originally conceived. Please note, a "PERFECT" round brilliant cut does not actually exist, as NOWHERE in the original plans for the modern round brilliant cut diamond, put down by Tolkowski when he created this cut, was there any mention of any GIRDLE. The "perfect" diamond should have knife edge girdle according the original specifications, this will however be very hard to find, so the best bet for the modern consumer is to ensure you have the best crown angle, pavillion angle, and crown + pavillion depth, in order to maximise the brightness of the stone. If you have further questions, feel free to ask.
Kindest regards,


(8) Posted: 22/11/2018

Wonderful question; most definately the brilliant cut gemstone. We can assist you with finding a most affordable solution to high quality gems. Please feel freeto check out webpage for the following examples;



and in our tiara selection;


Hoping this helps 

Kind reagrds,



(5) Posted: 22/11/2018

Hi - great question.

The Round Brilliant Cut Diamond will give you the best visual display of brilliance/fire/scintillation/etc.

It will not only reflect light, but it will also refract the white light and break it up into the colours of the spectrum.

Just make sure that it is a well cut diamond. A diamond that isn't well cut will allow light to escape out the bottom and not be returned to the viewers eye.

If you would like to know more about how a diamonds quality characteristics can affect its beauty (and value), don't hesitate to get in contact...we're always happy to discuss so that our customers can make a fully informed decison.

Hope this has helped.

Australian Diamond Network

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