Close-up of scattered diamonds on a dark surface.

Steady Assortments of Natural Round Diamonds

Precisely calibrated parcels from melee to larger sizes, selected for consistency, balance, and brilliance.

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What we provide

We specialize in calibrated assortments of natural round diamonds for daily production and fine jewelry work. Parcels are prepared with careful attention to matching, proportion, and overall visual consistency.

From small melee through larger sizes, we help you maintain steady supply, reliable specifications, and clean layouts that set well and finish consistently.

Close-up of a person’s hand holding tweezers, working with small, shiny gemstones or beads on a white work surface.

Specifications

  • Natural round diamonds, calibrated assortments

  • Melee through larger sizes

  • Broad range of colors and clarities, always top make

  • Layouts prepared for consistency and fit

  • Selected for balance, symmetry, and brilliance

  • GIA-certified stones available upon request

  • Natural diamonds only, routinely screened

How assortments are prepared

  • 1. Requirement review

    Share sizes, tolerances, target color and clarity, and intended use.

  • 2. Selection and matching

    We prepare layouts with close attention to consistency and overall look.

  • 3. Confirmation

    We confirm availability, pricing, and timing before release.

  • 4. Delivery or appointment

    Stones are delivered or reviewed in person by appointment.

Common requirements we support

Production supply

Steady assortments to support ongoing manufacturing.

Matching and replenishment

Add-ons and repeats that align with previous work.

Design-specific parcels

Layouts prepared for particular settings and proportions.

Sorting diamonds by size - I Morgenstein New York

Our standard

Every assortment is prepared with a measured, accurate approach. We describe goods conservatively and focus on consistency across the parcel, so your finished pieces present cleanly and reliably. We routinely check our diamonds for natural origin.

No matter the size or price point, selection is guided by the same priorities: accuracy, care, and long-standing trade standards.

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