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Depth affects a marquise diamond’s appearance more than most buyers realize going in. A shallower cut spreads the stone wider across the top but tends to show more bowtie shadow, while a deeper cut tames that shadow at the expense of some of that face-up spread across the finger, so it’s a genuine trade-off worth weighing carefully.
For example, a 0.30-carat, IGI-certified, Ideal cut, H color, VVS2 clarity marquise shape lab-grown diamond runs around $186. Price in this category rarely comes down to carat alone; clarity, cut precision, and how evenly the wings were shaped all pull real weight in the final pricing of the piece you decide to purchase.
Clarity and cut function almost as a single unit in a marquise’s final look. Excellent clarity paired with a mediocre cut can still leave a visible shadow across the stone, while a well-executed cut gets more attention out of whatever clarity grade it’s working with, even at a more modest grade level. That’s why it is important to weigh both factors together rather than ranking one above the other.
Because both points take the impact of daily wear & tear, look for prongs that wrap securely around each tip, and consider a setting with a small metal bridge underneath for stones that will see regular use and handling over the years ahead. This small structural detail can meaningfully extend how long the setting holds up.
Loose Grown Diamond also builds marquise shape lab grown diamonds around your own specifications. Share your ideal carat, clarity, or setting, or a photo to work from, and our team will bring it to life for you, with updates along the way to keep you informed at every step.
Yes, lab diamonds typically cost 30–50% less than mined diamonds of the same quality.
They may show a faint tint in large sizes or certain lighting, but generally look white in most settings.
Yes, yellow gold masks the slight warmth of H color diamonds well.
Yes, they typically cost 30–50% less than comparable mined diamonds.
Absolutely! It’s a popular choice due to its near-colorless appearance and budget-friendly pricing.
VS2 or higher is recommended to avoid visible inclusions due to the large table.
