How we actually make a piece.

Full process wall chart

Read top to bottom like the sheet above the casting bay.

1. 01 · Zone A — Design deskJob card & briefSame as a local workshop taking a repair order: we write metal (22K / 18K), finger size, weight target, stone budget, and delivery date on one job card. Nothing starts until karat, shank style, and centre stone are locked.
2. 02 · Zone A — CAD bayCAD modellingDesigner builds THIS ring in CAD (Matrix / Rhino style). Seat depth, prong thickness, gallery openwork, and casting shrinkage are fixed here — so wax and cast come out the size we promised, not “close enough”.
3. 03 · Zone B — Wax labWax / resin printCAD file goes to the 3D printer. A wax or castable resin master of this SKU comes out. Loupe check: prongs intact, shank round, size correct. Wrong? Reprint. No guessing on the floor.
4. 04 · Zone B — Wax labTreeing the waxWax pieces are soldered onto a central sprue “tree” — like hanging parts on a branch — so one flask casts many units. Feed paths are planned so the head and shank fill clean when metal hits.
5. 05 · Zone B → CInvestment & burnoutTree goes into a steel flask, filled with investment plaster. After set, flask enters the kiln. Wax burns out completely (“lost wax”). What’s left is a clean hollow cavity in the shape of the jewellery.
6. 06 · Zone C — Casting bayAlloy & castingVerified gold (bars / grain) is alloyed to the ordered tunch (e.g. 916 or 750), melted in the crucible, then cast — centrifugal or vacuum — into the hot flask. Metal fills the cavity. Quench, break plaster, cut pieces from the tree.
7. 07 · Zone D — BenchBench workRaw cast looks rough — like any foundry part off the machine. Goldsmith files sprue scars, opens the gallery, trues the shank, prepares seats. Hand tools, motor, patience — before any diamond goes in.
8. 08 · Zone E — SettingStone settingSetter places the centre diamond and halo / side stones into the same cast head. Prongs are pushed and tightened. Security tug test. Stones sit on the ring we cast — not glued onto a different piece.
9. 09 · Zone F — PolishPolish & finishTripoli then rouge (or equivalent): bring the metal to mirror. Ultrasonic clean. Optional rhodium on white metal. Finger feel must be smooth — no file marks, no sharp edges.
10. 10 · Zone F — QC & dispatchHallmark & dispatchAssay / BIS hallmark (HUID where applicable), weight slip, QC stamp, pouch and box. For wholesale: invoice, packing list, courier. Job closed only when purity and weight match the order card.