OVAL VS MARQUISE DIAMOND CUT:
Oval Diamond Cut
Advantages:
- Perfect shape for round cut diamond’s sparkle and the pear cut diamond’s unique grace.
- Longer oval cut diamonds with flat shoulders are usually considered more elegant while more wider oval cut diamonds with rounded shoulders give less of a bow tie
Look for:
- Depth percentage of 58%-64%
- VS1 – SI1 mark for the best value
- Table size for ovals is 54%-63%
- F-G-H
- optimal oval ratio of length to width is 1.36 to 1.45
Disadvantage:
If the length to width ratio is not chosen wisely, it will yield a bow-tie effect and interfere with the sparkle of the diamonds.Marquise Diamond Cut
Advantages:
- Depth: 60% to 68% (under 65% is relatively hard to find) you don’t need any built-up depth to maintain brilliance, you should go as low as possible in terms of depth
- This diamond shape is versatile and makes your fingers appear longer and slender.
- You can save money because these stones will look slightly bigger than fancy stones of the same weight
Look for:
- Depth: 58% to 60%
- Table: 53% to 63%
- Girdle thin to slightly thick.
- Recommended Length to width ratio for Marquise diamond of around 1.85-2.00
- VS2-SI1’ range, as marquise cuts hide small imperfections really well.
- Clarity for the best value
- Color G - H
Disadvantage:
- It is not straightforward to determine Cut quality of a Marquise Diamond thanks to their fancy, elongated shape
- Each diamond will have a unique Depth % and table %. Length to width ratio is a personal preference
- Prone to chipping at pointed ends unless set in appropriate setting
- Nearly all Marquise Diamonds contain a bowtie effect