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A guide to Diamond Shapes

A diamond shape for every style & application

When most people think about Diamonds – they think about the brilliance of the classic round shape. But in fact diamonds are cut into many different shapes. The classic round shape is so popular because when well cut it reflects light in the best possible way to give the best sparkle.

All diamonds that aren’t round are categorized as fancy cut diamonds.

Brilliant Cut

The round brilliant cut diamond has set the standard for all other diamond shapes and is the most popular and most researched diamond shape. There are 58 facets in a Round Brilliant Cut including the culet. Cut grading of Excellent – Fair is given by GIA based on the proportions, symmetry and polish of the diamond.

Round Brilliant

Today’s modern round brilliant diamond is precisely cut to maximize the diamond’s brilliance, fire and size. These sparkling gems represent the collective talents of generations of skilled cutters over more than six centuries.

Modified Brilliant Cuts

Modified brilliant cut diamond is a variation of a brilliant cut diamond. In the last 20 years, modified brilliant cutting on the pavilion have become very popular. There is no GIA Cut grading on Modified Brilliant Cuts but symmetry and polish grades of excellent – fair are given.

Marquise

The marquise cut or marquise modified brilliant cut is usually cut as an adaptation of the 58 facet standard brilliant. The shape of a marquise diamond can maximise carat weight, giving you a much larger-looking diamond.

Pear

This pear-shaped modified brilliant cut diamond combines the soft, rounded end of an Oval shape with the sharp, tapered point of a Marquise-cut. They usually have 58 facet brilliant pattern, but can be cut with different numbers of pavilion mains.

Heart

The technical name for this shape is “Heart-Shaped Modified Brilliant” – based on its shape and modifications of the traditional round brilliant cut. Occasionally used for engagement rings, it makes a beautiful choice for pendants in fancy colours (yellow, pink or red).

Princess

The Princess cut or Square Modified Brilliant, has pointed corners and is traditionally square in shape with length-to-width ratios between 1 and 1.05, but can also be found in a rectangle shape with ratios greater than 1.10.

Cushion

The Cushion Cut or Cushion Modified Brilliant are names for the Old Mine Cut developed before the turn of the century. The modern Cushion cut diamonds can have one of three basic facet arrangements.

Oval

An oval or oval modified brilliant has beautiful brilliance that’s similar to a round diamond. The oval is seen most frequently cut in the standard 58 facet brilliant pattern, but can have a varying number of pavilion main facets.

Radiant

The radiant is the name used to describe the cut-cornered, rectangular or square modified brilliant, the technical description on GIA grading reports. This cut combines the geometrical lines of the emerald shape with the sparkling brilliance of the round cut.

Step Cuts

The step cut has rows of facets that resemble the steps of a staircase and are usually four-sided and elongated. The emerald, asscher and baguette cuts are examples of this cut. There is no GIA Cut grading on Step Cuts but symmetry and polish grades of excellent – fair are given.

Asscher

The Asscher or Square Emerald Cut, is a square cut characterized by a smaller table and larger step facet than an emerald cut. It features dramatic, cut corners. It usually has a high crown and a deeper pavilion than today’s emerald cuts.

Emerald

The emerald cut has 58 facets (25 crown, 8 girdle and 25 pavilion). The emerald cut shows less brilliance and fire (dispersion) than the other cuts. A traditional emerald-cut shape, should have a length-to-width ratio between 1.30 and 1.40.

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Randor Jewellery Engagement Rings
4.8
Based on 68 reviews
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Catherine Kenwood
Catherine Kenwood
02:50 19 Mar 20
My engagement ring and wedding band were made separately at different places, so they never quite matched. I went to... see Randy to redesign my engagement ring and he made me feel comfortable and confident he could make my rings look like a pair. He was extremely knowledgeable and his prices were very reasonable. My ring turned out beautifully and it now matches my wedding band. Go see Randy, you won't be disappointed!read more
Rajat Kachhadiya
Rajat Kachhadiya
14:17 08 Feb 20
I did my research and had a pretty good idea of what the ring would look like (oval cut with half pave band). Randy and... his team were very kind, attentive and knowledgeable which resulted in the exact ring I envisioned. For the diamond, Randy discussed some key traits to focus on and we found a GIA certified diamond, within my budget and exceeding specifications I was originally aiming for. Overall my experience at Randor Jewellery was great! I definitely recommend checking them out if you are looking for an engagement ring or even other jewellery/watches.read more
Ben Liang
Ben Liang
17:53 02 Dec 19
Randy and the Randor team offers a perfect combination of no-brainer pricing and levels of service and professionalism... generally reserved for higher end retail stores. Couldn't have asked for a more patient and helpful individual than Randy in helping me choose the perfect engagement ring. Thanks again!read more
David Nicholson
David Nicholson
15:37 25 Nov 19
Top Service as always. We got our engagement ring made here and our wedding bands. It's always a pleasure to work with... Randor Jewelers. Top class as always. Great to deal with and so very helpful in all aspects of choosing a ring/s. I would highly recommend.read more
James Zhan
James Zhan
17:21 23 Oct 19
Randy is absolutely a joy to work with. He is very patient, and his prices are very reasonable. The ring turned out to... be gorgeous!read more
Felisa Sapateiro
Felisa Sapateiro
14:03 27 Aug 19
Before I met with Randy I did my research and had a pretty good idea of what the ring would look like (oval cut with... half pave band). Randy and his team were very kind, attentive and knowledgeable which resulted in the exact ring I envisioned. For the diamond, Randy discussed some key traits to focus on and we found a GIA certified diamond, within my budget and exceeding specifications I was originally aiming for. Overall my experience at Randor Jewellery was great! I definitely recommend checking them out if you are looking for an engagement ring or even other jewellery/watches.read more
Boroka Bo
Boroka Bo
18:07 06 Jun 19
In the market for a custom ring but scared because you are a discerning customer (aka a perfectionist)? Have no fear,... Randor is the best! Just picked up 2 rings, ordered a few weeks ago, made to my exact specifications. Great workmanship, listened to and completely honored my artistic vision for both pieces. Highly recommend, will be back!read more
Denis dca
Denis dca
00:12 04 Jun 19
Thank you to Randy for taking the time to help us find the perfect ring! He took the time to explain what quality I... should be looking for and kept in constant communication once I placed the order to keep me updated on the status of the ring! My wife absolutely loved it!!! He was even willing to hold the matching wedding band so I could come pay for it closer to our wedding date! Amazing serviceread more
Audriana Li
Audriana Li
00:19 31 May 19
I wish I could give 6 stars because our experience with Randy was so amazing. We were actually about to go with another... jeweller, but then I found the exact same diamond on Randy's website for $1,100 less. That made us decide on Randy, who offered us a much larger selection of diamonds matching our specs and budget. We ended up with a much larger, high quality diamond than we thought we could afford and somehow still came in quite a bit below our budget! We picked up my ring today and it is so beautiful and perfect, I can't stop staring at it. The entire process with Randy was straightforward and transparent. Randy was awesome at getting back to all of our emails and questions, he was patient and flexible, often meeting us a bit outside of his actual store hours to accommodate our schedule. I cannot recommend Randy enough if you are looking for a custom engagement ring or piece of jewellery.read more
Nathan W
Nathan W
20:57 12 Jun 17
Randor Jewellery was the best choice that I have made. Randy helped me customize the perfect ring within my budget. I... was browsing many jewelers, but as soon as I went to the appointment with Randy I was sure that he was able to create the ring that I was looking for. He promptly emailed me back whenever I had questions, time was accommodated for appointments, and any changes that I needed was done without an issue. Randor has a large selection of rings with many styles to choose from, so when I decided that I needed styles from different rings, Randy made sure that it would look flawless.My fiance is in love with the ring, and I know that I made the best possible choice with Randor.read more
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