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Lab Diamond Sourcing

Radiant-Cut Lab-Grown Diamonds for Wholesale Buyers

Radiant cuts combine a rectangular or square outline with brilliant-style faceting. Sourcing should account for ratio, corner shape, face-up pattern and how the stone will work with the chosen setting.

Request radiant options
Illustrative elongated and square radiant cut laboratory-grown diamonds
Illustrative shape reference for specification planning. Current options require a separate availability check.

Choose square or elongated proportions deliberately

A radiant cut laboratory-grown diamond may be near-square or distinctly elongated. Provide a target length-to-width relationship and exact dimension range when the setting is already planned. The clipped corners and outline should be checked for symmetry and compatibility with the prong layout. Carat weight alone may produce options with different visual spread. A buyer developing a repeat style should record the acceptable ratio and millimeter tolerance so future stones can be screened against a stable product specification rather than an informal visual memory.

Review the face-up facet pattern

Radiants can show different face-up patterns and areas of contrast. Request available video and still media to compare the overall brightness pattern, center appearance and outline. Media is helpful for comparing proposed options but cannot guarantee appearance under every lighting environment. The selected stone still needs its report information, measurements, weight and inscription when applicable checked against the physical item. The sourcing record should also include the available growth-method and treatment disclosure rather than making assumptions based on a photograph.

Coordinate the stone with the jewelry

Radiants are used for center stones, earrings, three-stone rings and branded fashion styles. State whether the stone is going into a solitaire, halo, hidden-halo or multi-stone design because setting clearance and corner protection may differ. For pairs, compare length, width, ratio, corner shape, color, clarity and visual pattern. For side stones, specify the intended relationship to the center. Current availability, minimums and timing are confirmed in the quotation after the sourcing and production scope is understood.

Procurement checklist

Square or elongated target
Carat and millimeter range
Length-to-width preference
Corner and outline requirements
Face-up pattern preference
Color, clarity and certificate
Growth method
Setting, quantity and destination

Current radiant 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.

Request Current Availability

Radiant sourcing questions

Can I request an elongated radiant?

Yes. Provide a ratio or dimension range and the intended setting so options can be screened appropriately.

How are radiant pairs matched?

Pairs should be compared for dimensions, ratio, outline, corner shape, grading relationship and face-up pattern.

Does a report show the complete visual pattern?

No. Report information should be combined with available face-up media and physical verification for the selected stone.

Related shapes and sourcing services

Last updated: July 13, 2026

Request current availability

Send the business context needed for a current supply check.