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It is necessary to know about the bowtie effect before you buy a marquise shape lab grown diamond. It’s a shadow that can settle across the stone’s center, and whether it’s faint or obvious comes down almost entirely to how the diamond cutter balanced depth against width. A well-proportioned stone keeps that shadow soft enough that it barely registers, letting the brilliance take center stage instead and carry the eye from point to point.
To give you an idea, our 0.26-carat, IGI-certified, Ideal cut, E color, SI1 clarity marquise lab diamond is priced around $108. Diamond clarity has an impact on the price in this shape; an SI1 grade brings the cost down while the stone still appears clean to the eye at arm’s length, without any obvious flaws pulling attention away from the sparkle.
Because a marquise has so little room to hide a poor angle alongside its long, open faces, cut precision arguably matters more here than in most other shapes. A stone graded Ideal is going to carry light from point to point far more evenly than one with a lower grade. That evenness is what gives a well-cut marquise its signature liveliness.
Prong placement deserves real thought with this shape. Whatever mount you choose, the pressure at each tip needs to be distributed evenly, and a slightly raised setting can pull in extra light from the sides for added brilliance throughout the day and into the evening. Lower-set mounts trade some of that light for a sleeker, closer-to-the-finger profile.
Loose Grown Diamond takes on custom marquise orders as well. Share the carat, clarity, and setting you have in mind, along with a reference image if you’ve got one, and we’ll begin work right away, keeping you updated at every stage of the process from cutting to final polish.
‘E color’ indicates that the diamond is nearly colorless, with only minute traces of color detectable under magnification, making it one of the highest grades on the GIA scale.
E color still pairs beautifully with yellow or rose gold, but the metal may add a warmer tone to the diamond.
Yes, E color diamonds are top-tier in terms of color, offering excellent brilliance and minimal visible color.
Lab grown diamonds offer the same optical, physical, and chemical properties as natural diamonds, often at a more affordable price.
Yes, while lab grown diamonds offer better control over color, E is still among the top-tier color grades.
Yes, they offer a brilliant sparkle with excellent whiteness, combining vintage flair and modern ethics, making them a striking and sustainable choice.
