Preserving History with
Micrometric Precision.
Victorian, Edwardian, and Art Deco masterpieces cannot be compromised by ill-fitting modern stones. We supply specialized restoration studios with rare historical cuts (Single Cuts, Rose Cuts) and exacting sub-millimeter tolerances to perfectly match 100-year-old metalwork.
The Heritage Mandate
Rare Historical Geometries
Modern 57-facet brilliants look anachronistic in vintage pieces. We program our CNC lasers to execute classical 8/8 Single Cuts, Rose Cuts, and French Cuts, preserving the authentic low-fire, broad-flash aesthetics of early 20th-century jewelry.
#Single_Cut_MeleeSpatial Metal Preservation
Antique platinum and gold bezels are fragile. Attempting to force an incorrectly sized stone destroys historical value. Our ±0.02mm sorting ensures replacement stones drop perfectly into original century-old settings without requiring destructive filing.
#Non_DestructiveEra-Specific Color Matching
While we default to DEF purity, Art Deco contrast pieces often require specific grading. Our optical sorting machines can isolate strictly calibrated matched layouts, ensuring the new stones blend invisibly with surviving original diamonds.
#Optical_BlendingCalibration & Historical Applications
Providing complete access to micro-tolerances. Our parcels are segmented to exact millimeter parameters, enabling master restorers to execute seamless repairs.
| Standard Sieve Plate | Diameter Range (MM) | Cut Availability | Pieces / Carat (Approx) | Primary Restoration Application |
|---|---|---|---|---|
| +000 to -00 | 0.80 – 0.85 mm | Brilliant / Single (8/8) | 330 – 400 pcs | Edwardian Milgrain Borders |
| +00 to -0 | 0.90 – 1.05 mm | Brilliant / Single (8/8) | 200 – 250 pcs | Victorian Micro-Prong Replacements |
| +0 to -1 ART_DECO | 1.10 – 1.15 mm | Single Cut / Step Cut | 140 – 165 pcs | 1920s Geometric Halos & Borders |
| +1 to -2 | 1.20 – 1.30 mm | Brilliant / Rose Cut | 100 – 125 pcs | Antique Pocket Watch Bezels |
| +3.5 to -4.5 VINTAGE_STD | 1.50 – 1.65 mm | Old European / Brilliant | 58 – 70 pcs | Victorian Cluster Ring Accents |
| +6.5 to -8 | 2.00 – 2.40 mm | Old Mine / Cushion | 20 – 33 pcs | Antique Brooch Centerpieces |
| +11 to -16 | 2.80 – 4.00 mm | All Historical Cuts | 4 – 11 pcs | Edwardian Three-Stone Side Stones |
The 12 Master Diamond Cuts
We leverage multi-axis CNC lasers to recreate the exact geometries used by early 20th-century European master jewelers.
Single Cut (8/8)
17 Facets / Art Deco Pave
Square Step Cut
Precursor to Princess Cut
Emerald Cut
1920s Architectural Styles
Asscher Cut
The Hallmark of Art Deco
Oval Rose Cut
Flat Bottom / Victorian Rings
Pear Cut
Antique Drop Pendants
Marquise Navette
Edwardian Floral Accents
French Cut
High Crown / Antique Borders
Old Mine Cut
Deep Pavilion / Open Culet
Heart Shape
Victorian Romantic Tokens
Shield Cut
Art Deco Shoulders
Tapered Baguette
Geometric Target Framing
Restore with Absolute Accuracy
Submit the millimeter requirements for your missing stones. Our historical cutting desk will provide a quote for precise Single Cut or Old Mine replacements within 24 hours.