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A length-to-width ratio near 1:1 is generally considered the classic cushion silhouette, giving the stone a soft, rounded square appearance. Push that ratio higher, and the stone stretches into a more rectangular shape with a noticeably different personality on the hand and in a finished piece of jewelry, whether it’s a ring or a pendant. Trying both proportions side by side is often the easiest way to decide which one you’re drawn to.
An example of this is a 0.50-carat, IGI-certified, Ideal cut, G color, VVS2 clarity lab grown cushion diamond, priced around $174. Clarity and carat weight both carry real weight in this pricing, since VVS2 keeps the stone looking essentially flawless even as it grows past the half-carat mark and into more noticeable territory for the eye. Color plays a comparatively minor role here, since G already sits near the top of the near-colorless range.
At this size, cut precision becomes especially noticeable, since a lab grown cushion diamond’s broad facets put more of its interior on display than a densely faceted shape would. A well-executed cut keeps that display consistently bright rather than uneven or patchy across the surface and outline of the stone. This is one reason a strong cut grade is worth prioritizing as carat weight increases.
Since lab-created cushion diamonds have no exposed points, setting security is less of a concern here than with pointed shapes, though reinforced prongs still help protect the rounded corners from chipping over years of wear and daily handling in any environment or setting. A well-built mount pays off over the long run, even if it isn’t the most visually dramatic choice.
Building a lab grown cushion diamond around your own preferences is a specialty of ours at Loose Grown Diamond. Whatever combination of carat, clarity, or ratio you have in mind, share the details, and we’ll cut a stone to match. We’re happy to walk you through the options available.
Yes, G color diamonds are high-quality and appear white to most eyes, especially when well-cut.
They offer a near-colorless appearance without the premium price of D-F colors.
4 carat cushion cut diamond prices usually range from $900 or more per carat, depending on the cut, color, clarity, and certification.
Yes, lab grown diamonds are typically 30–50% more affordable than natural counterparts.
G is already near-colorless; upgrading to F or E offers minimal visible improvement for a higher cost.
VS1 to SI1 clarity is ideal, depending on budget, since inclusions are less noticeable in cushion cuts.
