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Lab Diamond Sourcing

Princess-Cut Lab-Grown Diamonds for Wholesale Jewelry Buyers

Princess-cut buying briefs should control square outline, corner integrity, physical measurements and compatibility with a setting that protects all four points.

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Illustrative princess-cut laboratory-grown diamonds arranged for square-outline and corner comparison
Illustrative shape reference for specification planning. Current options require a separate availability check.

Square outline and measurements

State length, width and the accepted difference between them. A princess cut described as square can still vary enough to affect the setting seat, halo or matched-pair appearance.

Corner integrity

Review all four points for damage, asymmetry and compatibility with the planned prongs. The quotation and shipment checks should identify how the stone is protected during handling.

Facet appearance and grading

Compare the face-up pattern, contrast and clarity visibility using available media. Then connect the selected stone with its report, dimensions, weight and growth or treatment disclosure.

Setting fit and matching

Provide the seat dimensions and corner-clearance requirement. For pairs, compare length, width, square outline, grading relationship and face-up pattern.

Procurement checklist

Length and width
Square tolerance
Corner integrity
Carat target
Color and clarity
Report preference
Setting seat
Pair or quantity

Current princess availability

Source by specification

Send the target carat, millimeter dimensions, ratio, grading preferences, quantity and jewelry use for a current supply check. The response identifies options that match the brief without presenting an unverified public inventory claim.

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Princess sourcing questions

How square should a princess cut be?

The buyer should define an acceptable length-to-width tolerance based on the setting and visual standard.

Why inspect the corners?

The pointed corners are vulnerable during handling and require compatible setting protection.

Can princess cuts be matched for earrings?

Yes. Compare dimensions, squareness, grading and face-up appearance rather than carat weight alone.

Related shapes and sourcing services

Last updated: July 13, 2026

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Send the business context needed for a current supply check.