Calibrated Lab-Grown Melee Diamonds for Jewelry Manufacturing
Source calibrated round lab-grown melee diamonds ranging from 0.80 mm to 6.50 mm, with consistent sizing for pavé settings, fine jewelry manufacturing, and volume wholesale requirements. Lavish provides precision-sieved parcels sorted for millimeter accuracy, color homogeneity, and eye-clean clarity.
Request Wholesale Pricing
Share your diamond specifications to receive wholesale availability and manufacturer pricing.
Calibrated Size Selection
Precision sorted from 0.80 mm to 6.50 mm (+000 to +14 sieve sizes) for seamless setting into micro-pavé, channel, and prong mountings.
Parcel and Volume Supply
Supplied in commercial parcel quantities, carats by sieve size, or recurring monthly production batches tailored for manufacturing lines.
Matching & Sorting Preferences
Graded into consistent color bands (DEF or GH) and clarity tiers (VVS-VS or SI) to guarantee uniform luster across large surface areas.
Jewelry Production Applications
Ideal for luxury watch bezels, engagement ring halos, eternity bands, tennis bracelets, and intricate high-jewelry pavé fields.
Selecting Calibrated Melee Diamonds
Essential technical considerations for millimeter sizing, sieve grading, and volume mounting yield.
1. Millimeter Sizing vs. Carat Weight
Melee diamonds are primarily sourced by precise millimeter diameter rather than individual stone carat weight to ensure flawless fit in pre-cast jewelry mountings.
2. Sieve Sizes & Sizing Tolerances
Small rounds are sorted through precision metal sieves (e.g., +1.0 to +1.5, +6.5). Buyers should specify acceptable millimeter ranges and sieve limits for their setters.
3. Color & Clarity Consistency
Because pavé clusters amplify visual contrast, selecting homogeneous color (DEF or GH) and eye-clean clarity tiers is crucial to avoid dark spots in pavé fields.
4. Volume & Yield Planning
Order quantities should account for setting loss tolerances and stone replacement allowances during casting and micro-setting assembly runs.
Precision-Calibrated Melee Diamonds for Scaled Jewelry Production
Established in 2020, Lavish Lab-Grown Diamond operates advanced automated mechanical sieving and optical sorting benches at our Surat cutting facilities, coordinated through our Mumbai trading operations.
We supply calibrated round melee diamonds to leading jewelry ateliers, casting houses, and commercial volume producers worldwide — delivering consistent parcel lots sorted to strict millimeter thresholds, tight color bands, and eye-clean clarity tiers.
- check_circle Full Millimeter Spectrum: Comprehensive sizing from 0.80 mm micro-pavé up to 6.50 mm (1.00 ct equivalent) calibrated rounds.
- check_circle Strict Color Homogeneity: Available in Colorless (DEF) collection tier and Near-Colorless (GH) commercial manufacturing lots.
- check_circle Eye-Clean Clarity Grading: Carefully sorted VVS–VS fine jewelry parcels and commercial SI production lots free of dark inclusions.
- check_circle Scheduled Volume Delivery: Ongoing production lot contracts, monthly replenishment schedules, and rapid door-to-door insured transit.
Melee Sieve Size & Millimeter Calibration Chart
Standard sieve plate sizes, approximate carat weights, and stone counts per carat across the 0.80 mm to 6.50 mm range. Exact tolerances should be confirmed with our sales team.
| Millimeter Size | Sieve Size | Approx. Weight / Stone | Typical Mounting Application |
|---|---|---|---|
| 0.80 – 1.00 mm | +000 to +0 | 0.003 – 0.005 ct (200–330/ct) | Ultra-fine micro-pavé, watch dials, intricate filigree accents |
| 1.10 – 1.30 mm | +0.5 to +2.0 | 0.006 – 0.010 ct (100–165/ct) | Engagement ring halos, slender eternity bands, drop earring borders |
| 1.40 – 1.60 mm | +2.5 to +4.5 | 0.012 – 0.018 ct (55–80/ct) | Classic pavé bands, three-row eternity rings, tennis bracelet lines |
| 1.70 – 2.00 mm | +5.0 to +7.0 | 0.020 – 0.033 ct (30–50/ct) | Signature tennis bracelets, channel-set bands, statement halo rings |
| 2.10 – 2.50 mm | +7.5 to +9.5 | 0.037 – 0.060 ct (16–27/ct) | Shared-prong eternity bands, bezel-set necklaces, luxury watch bezels |
| 2.60 – 3.00 mm | +10.0 to +11.5 | 0.067 – 0.105 ct (9–15/ct) | High-carat tennis bracelets, cluster earrings, anniversary bands |
| 3.20 – 4.00 mm | +12.0 to +13.5 | 0.12 – 0.25 ct (4–8/ct) | Graduated tennis necklaces, three-stone side accents, eternity bands |
| 4.20 – 6.50 mm | +14 & Pointer Rounds | 0.28 – 1.05 ct (1–3.5/ct) | Solitaire stud earrings, pendant centers, prominent side stones |
Calibrated Melee Technical Specifications
Review standard physical parameters, sieve groupings, and sorting options for scaled jewelry manufacturing requirements.
| Millimeter Range | 0.80 mm to 6.50 mm (continuous calibrated increments of 0.05 mm or 0.10 mm upon production request). |
| Cutting & Faceting | 57/58-Facet Full Cut Round Brilliant with Excellent symmetry, standardized table width, and uniform crown angles for seamless mounting. |
| Color Tiers | DEF (Colorless Collection Tier) and GH (Near-Colorless Commercial Tier), rigorously sieved to prevent color variance across continuous pavé fields. |
| Clarity Tiers | VVS–VS (High Jewelry Tier, 100% eye-clean under 10x magnification) and SI (Commercial Production Tier, eye-clean face-up). |
| Sieve Groupings | +000 to +14 sieve plates, calibrated using precision mechanical sieves and digital optical micrometer verification. |
| Growth Technology | 100% CVD & HPHT lab-grown diamond crystal synthesis, optically tested for Type IIa purity and zero simulants. |
| Supply Formats | Bulk parcel lots, sieve-sorted cassettes, and calibrated carats packed in tamper-evident sealed containers with commercial invoices. |
Melee Sizing Precision & Mounting Integrity
Achieving flawless pavé surfaces and zero setting breakage depends on strict millimeter tolerances and uniform diamond geometry.
Sieve vs. Digital Gauging
While sieve plates quickly sort diamonds by diameter bands, our optical bench adds digital micrometer sampling to ensure that stones do not exceed your setter's seat tolerances.
Consistent Girdle Thickness
Melee with knife-edge or excessively thick girdles leads to chipping or loose mountings. Lavish ensures medium, uniform girdles engineered specifically for prong and channel security.
Color Homogeneity in Pavé
In dense pavé surfaces, a single off-color stone immediately catches the eye. Our strict DEF and GH lot separation eliminates the "salt-and-pepper" mismatch in fine jewelry.
Sieving & Optical Quality Inspection Protocol
Every melee parcel undergoes a multi-tier mechanical and visual sorting workflow to ensure absolute consistency across every carat dispatched.
Mechanical Sieve Screening
Passing rough polished rounds through precision stainless steel sieve plates to separate lots into tight millimeter bands.
Digital Diameter Audit
Micrometer verification of sample stones from each sieve batch to confirm compliance with maximum and minimum diameter limits.
Color Band Sorting
Examining lots over white grading trays under standardized daylight illumination to isolate DEF, GH, and commercial color lots.
Clarity & Culet Audit
Microscopic screening to ensure zero surface-reaching fractures, intact pointed culets, and uniform facet alignment across the parcel.
Sealed Parcel Dispatch
Packaging in static-free, tamper-evident parcel bags labeled with exact millimeter range, sieve size, total carat weight, and invoice manifests.
Melee Diamonds Across Key Jewelry Sectors
Calibrated melee diamonds form the luminous foundation of contemporary fine jewelry, bridal mountings, and luxury timepieces.
Micro-Pavé Fields
Supplying sub-millimeter rounds (0.80 mm to 1.20 mm) for intricate micro-pavé ring shanks, three-dimensional surfaces, and organic fine jewelry curves.
Halos & Engagement Shoulders
Calibrated 1.30 mm to 1.80 mm rounds providing brilliant framing for solitaire engagement ring centerpieces and cathedral shoulders.
Full Eternity Bands
Uniform 1.80 mm to 3.00 mm rounds with synchronized table widths for seamless 360-degree shared-prong and channel eternity bands.
Tennis Bracelets & Necklaces
Repeat carats in 2.00 mm to 3.50 mm calibrated rounds, providing uninterrupted brilliance and synchronized articulation across luxury bracelets.
Luxury Watch Bezels
Precision-sieved rounds for horological bezel pavé, diamond dials, and case integration meeting rigorous micrometer tolerances.
Cluster & Multi-Stone Jewelry
Graduated sieve assortments for floral clusters, snowflake motifs, and chandelier earring layouts requiring tiered millimeter spreads.
Frequently Asked Questions
Practical answers regarding calibrated round melee diamond sieve sizing, ordering minimums, and manufacturing tolerances.
Discuss Your Calibrated Melee Requirements
Whether you need a sample parcel for prototype CAD castings or ongoing monthly production lots, our diamond specialists will provide quotation and availability manifests.
Mumbai Commercial Center
Bharat Diamond Bourse, Bandra Kurla Complex (BKC), Bandra East, Mumbai, Maharashtra 400051, India.
Commercial Trading · International ExportSurat Manufacturing Facility
AK Road, Surat, Gujarat 395008, India. High-precision laser cutting, mechanical bruting, and facet polishing.
Rough Synthesis · Automated SievingTrading Hours & Response
Monday to Saturday: 10:00 AM – 7:00 PM IST. Dedicated B2B client consultation and parcel manifests.
Same-Day Invoicing · Fast Dispatch