Certified Lab-Grown Cushion Diamonds | LabGems Antwerp
Cushion cut lab-grown diamonds offer the broadest configuration choice of any shape in the certified inventory. Trade buyers can select between modified brilliant or standard faceting, and between square or elongated rectangular profiles. Each combination produces a commercially distinct product — modified brilliant for contemporary scintillation, standard cushion for romantic vintage character, square for traditional balance, elongated for finger-flattering proportion. Building cushion inventory means choosing which combinations to stock based on retail positioning.
Sourcing and Specifications
Active Antwerp inventory includes cushion cuts from approximately 0.30ct through 5.00ct across both faceting styles and both profile ratios. All certified stock is supplied with IGI documentation. Standard sizes ship within 1 business day; custom specifications ship within 7 business days. A €500 minimum applies across all certified purchases. For dedicated square-only inventory at strict 1.00-1.05 ratios, see the certified square cushion collection.
Modified Brilliant vs Standard Cushion Faceting
Modified brilliant cushion (also called cushion brilliant) features additional faceting beneath the table to heighten scintillation, producing a sparkle profile closer to round brilliants while retaining the cushion outline. Standard cushion (also called cushion antique) preserves broader, chunkier facets that reference old-mine cut antique diamonds, producing softer, romantic light return with larger flashes rather than fine scintillation. Modified brilliant suits contemporary engagement positioning; standard cushion suits heritage, Edwardian, and Art Nouveau retail contexts. Both are commercially viable; the selection depends on the retail audience.
Square vs Elongated Profile
Square cushions hold L:W ratios between 1.00 and 1.05, producing a balanced square outline. Elongated cushions extend from 1.10 through 1.30, producing a rectangular profile that flatters the finger and pairs effectively with east-west settings. Square cushions perform commercially in traditional solitaire and halo applications. Elongated cushions perform in contemporary engagement designs where finger appearance is a buying consideration. Trade buyers stocking both profiles will capture both audiences. For brilliant-cut alternatives in similar elongated proportions, consider oval or radiant cuts.
Halo and Pavé Applications
The cushion's softly rounded corners pair particularly well with halo settings, hidden halos, and scalloped pavé bands. Milgrain detailing enhances vintage-inspired cushion designs. Three-stone configurations with smaller cushion or trapezoid side stones produce cohesive heritage compositions. For accent stones, single round melee supplies pavé and halo inventory with same-day dispatch, while 1ct melee parcels support production-quantity applications.
Selection Notes for Cushion Cuts
- Decide faceting style by retail positioning: modified brilliant for contemporary, standard for heritage
- Stock both square and elongated profiles where possible to capture both audiences
- VS2 or better clarity for stones above 1.00ct; SI grades viable in smaller sizes
- Excellent or Very Good symmetry for balanced corner-to-corner geometry
- Pair with halo, hidden halo, or scalloped pavé settings for vintage retail conversion
Frequently Asked Questions (FAQs)
Both, if budget allows. Modified brilliant suits contemporary engagement positioning where scintillation is the buying driver. Standard cushion suits heritage and vintage-inspired retail where broader facets and softer light return match the design language.
If stocking a single ratio, 1.10-1.20 captures the broadest retail demand — slightly elongated, finger-flattering, but recognisably cushion. For dedicated square inventory with stricter 1.00-1.05 ratios, see the certified square cushion collection.
Yes. Cushion cuts feature in the coloured lab-grown diamonds collection across pink, yellow, blue, and green saturations. Cushion is one of the most versatile shapes for fancy colour positioning.
A €500 combined minimum applies across all certified diamond purchases. Cushion cuts can be combined with other shapes from active inventory to meet this minimum.
Cushion offers vintage-romantic character with softer corners. Round brilliant delivers maximum scintillation with standardised cut grading. Both suit contemporary engagement — choice depends on aesthetic preference.

