2.18.0 Latest 26 October 2026
Falloff, Mesh Cleanup, Edge Weight and AI Studio New shaping and clean-up tools, sizes in millimetres, and AI Studio for making a picture and a 3D model at true size.
New
Falloff: Move, Rotate and Scale act on each point by its weight, set with handles in the view (Linear, Radial or Cylinder). Mesh Cleanup: twelve clean-up options in one dialog, plus jewellery extras for loose specks, open edges and small holes. Edge Weight: harden edges of a subdivided surface without adding geometry, then Make Print Mesh for a printable body. Centre and Size in mm: centre objects or points on the origin, the cursor or another object, and type sizes in millimetres, not percent. AI Studio: describe a piece, make a reference picture, send it to Tripo for a 3D model and place it at true size. Your own AI app can drive AI Studio, but any paid request waits for your click on Allow. Improved
The section bar gains Shape and AI; a section opens its own panels, and Setting lists its sub-panels. A live weight line heads Check and Start Here, and findings read narrowly, worst first, with the full sentence of the one you pick. Fixed
AI Studio now refuses files that are not real PNG, JPEG or WEBP pictures, and sends nothing it has not checked. A paid request now needs your own click, and every started job counts against the daily spending allowance. In the manual:Your first look at the tab Shape: Falloff, Centre and Size in mm Mesh: cleanup, edge weight, Quad Fill, retopology AI Studio: a model at true size from words or a picture Keys, costs and privacy for AI Studio Drive AI Studio from your own Claude or ChatGPT Prepare a piece for printing
2.17.0 16 October 2026
Job files for scripts and AI helpers No change to the panels: scripts and AI helpers can now drive the add-on from a job file.
New
Job files: a script or AI helper can build and check jewellery from one job file, with no Blender window open. Cage: a ring band held as a light control cage under a subdivision surface, solved so the surface passes through the sections you ask for. Improved
Internal change for scripts only: every tool, setting and book figure is described in a reference card kept in step with the code. A job file is checked in full before anything is built, and a refusal lists every reason. 2.16.0 16 October 2026
A signet ring maker Build a signet ring from a few picture choices, check it against the book and get print files.
New
Signet panel: eight starting profiles; choose the face (oval, round, cushion or octagon), the shank, the border and what is cut. Cut text in any script, a picture or a relief; Persian and Arabic letters are joined correctly. Both forms: a one-part ring for the prototype print, and head and shank apart for production. Save and load every choice as a small sheet file, checked in full before it is used. Improved
Each build checks the bore against the ring size, the flat face and the shank, and weighs the ring. Blank Sheet resets every choice but keeps your size, metal and quality. In the manual:Signet: build a signet ring Prepare a piece for printing
2.15.0 11 October 2026
Live Mirror, Live Turn and Live Sizes See the other half of a ring, or turned copies, on the same mesh as you work, and read sizes as you scale.
New
Live Mirror: one click shows the other half across the ring's middle on the same mesh, in Edit Mode and Object Mode. Live Turn: copies turned about the ring's axis, joined at the seams, on the same mesh. Live Sizes: shows an object's size as you scale it, and in Edit Mode the length of each edge you change, with the change. Join Within, in millimetres, joins points closer than the gap you set; Make Real applies the result. Improved
The report is read from the mesh at every redraw, and a very large mesh is read once on request. In the manual:Mirror and Copy, Live Mirror and Live Turn Measure: reference pictures, ruler and live sizes
2.14.1 10 October 2026
Claw height and diameter rules Claws now stand 2.00 mm above the table and keep one diameter, and Seat Run-Out says what it is for.
Improved
Claws stand 2.00 mm above the table by default, with or without a talon tip; shorter is a choice you make. A claw keeps one diameter from foot to tip by default; a taper or a flare is something you set. Seat Run-Out explains that it is for a small stone's seat beside a neighbouring claw, never for a stone's own claws. A warning appears when run-out cutters are made for a stone that has claws of its own. In the manual:Claws: make, place, bend and edit Seats, divots and azure cutters
2.14.0 9 October 2026
Halo layout, bent claws, head and shank Lay out a halo before any metal, bend claw legs, and send every ring out in one-part and two-part forms.
New
Halo Layout: reads a round centre stone and its claws, and offers every ring of small stones that fits, with figures. Halo Band and Tilt: builds the band, makes a seat cutter for each small stone, and reads the metal left. Bend Leg: gives a claw a swept, bent leg while its top stays exactly as made. Seat Run-Out: a seat cutter that closes as a cone, for a small stone's seat beside a claw's foot. Head and Shank: measure the parting, then split a ring into head and shank, or fuse parts built apart. Improved
Castle Setting recognises a halo round a centre stone and accepts the close-halo pattern instead of warning. Cut Row now finishes the cut body cleanly, without stray fins or triangles of no area. In the manual:Halo layout, band and tilt Claws: make, place, bend and edit Seats, divots and azure cutters Reports & Checks: weight, checks and print files A halo: centre stone, small stones and band Prepare a piece for printing
2.13.1 7 October 2026
Baguette seats and cleaner cut metal A fix to the baguette seat cutter, a safer Cut Metal and a stricter print-clean check.
Improved
Cut Metal applies the piece's live modifiers first by default, so they cannot act a second time on the cut. The print-clean measure counts what a print file would contain, including faces with collinear corners. The azure rib stays at 0.40 mm by default, with 0.30 mm as the floor. Fixed
The baguette's seat cutter no longer passes through itself. In the manual:Seats, divots and azure cutters
2.13.0 7 October 2026
Castle Setting U cutters, V cutters and a channel for a row or ring of stones, with a measured verdict.
New
Castle Setting: for one row or ring of stones, a U cutter per stone, V cutters between neighbours, and the channel. Choose which walls get the V cut, including shared claws, and read back every claw and block against the book's figures. Walls can be Both, Outer, Inner, Left or Right, and the cutters follow stones that lean. Improved
Read-back gives a verdict on gaps, metal beyond the girdle, claw widths and cut depths before anything is cut. In the manual:Castle setting: U cutters, V cutters, channel
2.12.0 7 October 2026
Azure Cutters Open the back of a piece under a field of stones, with one measured cutter per stone.
New
Azure Cutters: one cutter per stone that carries the seat's light hole down to a cell on the back, like a honeycomb. Every stone gets a verdict: funnel, round opening or none, with the reason and its numbers. Check and Remove report stale cutters and the metal taken in grams, and clear the azures. Improved
Ribs, walls and the metal under each seat are measured in 3D after the cutters are built; defaults come from the book where it speaks. In the manual:Seats, divots and azure cutters
2.11.0 6 October 2026
Section bar, start object, reference pictures, ruler A bar of sections at the head of the tab, a choice of what new files open with, reference pictures at true size, and a ruler.
New
Section bar: choose Start, Rings, Gems, Setting and more, and the tab shows only that section's panels. New Files Open With: a finger rail at a size you set, a box, or your own object in every new file. Reference Image: a picture at true size on the front, side or top plane, scaled by two points and a typed distance. Ruler: measure in millimetres by click, by drag or between selected points; T reads wall thickness and Alt+T starts it. Improved
Follow the Tool shows a tool's section when you start it by key, pie or menu. In the manual:Your first look at the tab Setup: units, alloy, presets and new files Measure: reference pictures, ruler and live sizes
2.10.0 6 October 2026
Shared claws, polar axis key, retopology button A fourth claw snap for claws shared by two stones, a polar-axis key while placing, and the retopology tools reachable from the tab.
New
Shared claw snap: press S in Place Claws to put a claw the same distance from two neighbouring stones. A steps the axis of a polar array while placing, and Shift+A steps back. A Retopology button at the foot of Start Here opens the built-in retopology tools. Improved
A shared claw stands on the mean of the two stones' axes, and Ctrl slides it along its line. All eighteen cuts are now included in the add-on download. In the manual:Claws: make, place, bend and edit Place & Guides: place stones on a surface Mesh: cleanup, edge weight, Quad Fill, retopology
2.9.0 6 October 2026
Eighteen new cuts, built to fit the stone Eighteen faceted cuts join the round brilliant, and seats, claws and bezels are built for the stone as it is.
New
Eighteen faceted cuts: oval, cushion, princess, pear, marquise, emerald, radiant, heart, trillion, baguette and more. The cut shows as a picture; click it to see every cut in a grid. Any cut can be set to any width, length and depth and stays exact. Improved
Seats, claws and bezels are made for the stone as it is, not for a round. Every cut is exactly its own mirror image, so a mirrored pair of stones is a true pair. Files made in 2.8 keep the shapes of their stones. In the manual:Gems: cuts, sizes and groups Seats, divots and azure cutters
2.8.0 6 October 2026
Mirror and Copy for any object One window mirrors or copies any object about a reference you choose, and the copy can follow its original.
New
Mirror (Alt+M): choose what to mirror about: the guide's middle, the origin, the 3D cursor, another object, a picked line or its own centre. Copy Follows the Original: the copy redraws itself when the original is moved, edited or given a modifier. Turn Copies makes copies turned about the same references. Improved
A mirrored copy is a true mirror, never a negative scale, and modifiers such as Subdivision are mirrored exactly. The quick pie's Symmetry entry became Mirror and Copy, and still holds the twin tools. In the manual:Mirror and Copy, Live Mirror and Live Turn Keys and menus An ornament flowed onto a band
2.7.1 6 October 2026
Keep Shape and two Flow fixes Stones and drops now land whole on a flowed surface, and two band-unwrapping faults are fixed.
New
Keep Shape: select a stone or a drop and it lands whole on the piece instead of bending with the surface. Fixed
A band pulled out of round is no longer rolled out round the ring as if it were circular. A band picked all the way round is no longer unwrapped as a loop; whether it closes is read from how its faces join. In the manual:Flow on Surface: draw flat, carry onto the piece
2.7.0 6 October 2026
Flow on Surface Draw ornament flat and carry it onto a band or other surface at true size.
New
Make Guide lays picked faces, or a band's outer face, flat at true size with a millimetre grid and o'clock marks. Draw on the guide and the pattern appears live on the piece, all the way round a closed band. Make Real bakes the pattern into a mesh; Join to Piece unites it with the piece and checks the result. Improved
The guide says how true it is: exact on a flat face, true along the centre on a dome. In the manual:Flow on Surface: draw flat, carry onto the piece An ornament flowed onto a band
2.6.0 1 October 2026
Holes follow the stone, hide stones, mesh tools Through holes follow the stone, divots give blind seats, stones hide in groups, and Edit Mode gains Quad Fill and tools for loops of points.
New
Hole under each stone: Through, Divot (a blind seat that never breaks through) or None. Gem Groups: hide, show or select stones by size, cut, stone or your own groups; the eye hides every stone at once. Quad Fill: fills n-gons and open borders with four-sided faces; border points never move. Tools for loops of points built in: bridge, circle, curve, flatten, loft, relax, space and stretch to a stroke. Improved
Through holes follow the stone's size (0.25 times the girdle past the culet by default) instead of a fixed 10 mm. The Cutters panel says what the hole depth means for the active stone, and reports flag holes deeper than twice their width. Edit Mode keeps Blender's own selection colours, and W opens the retopology pie only inside a retopology tool. In the manual:Seats, divots and azure cutters Gems: cuts, sizes and groups Mesh: cleanup, edge weight, Quad Fill, retopology
2.5.0 29 September 2026
Retopology tools built in Six retopology tools, a set-up window for navigation and units, and install guidance.
New
Six retopology tools built in: add points and faces singly, draw strips of quads, bridge edges, make rings, drag points, even out spacing. Retopology extras: mirror, pin and unpin points, clean up, and the tools' settings in the add-on's preferences. A one-time Set Up window offers bench navigation (Alt + left drag) or Blender's default, and millimetres. Improved
Objects the add-on makes are named with a CJ_ prefix and recognised by a hidden tag, so you can rename them freely. Files made in 2.4.0 load unchanged. In the manual:Install the add-on Mesh: cleanup, edge weight, Quad Fill, retopology Setup: units, alloy, presets and new files Keys and menus
2.4.0 29 September 2026
The J pie, Jeweller menu and Edit Array Three ways into the tools (a quick pie, a header menu and a Start Here panel), and arrays you can change after they are made.
New
J opens a quick pie: Place Gems, Place Claws, Edit on Surface, Make Claws, Mirror and Copy, Make Cutters, Guides, All Commands. A Jeweller menu in the 3D view header lists every command in the order a piece is made, with each key shown. Start Here: the usual order of work as numbered buttons. Edit Array changes the count, angle, axis or mirrors of a symmetry group after it is made. Improved
Claw names are clearer: Pave claw (a small shared pin) and Setting claw (a stone's own shaped claw). In the manual:Your first look at the tab Keys and menus Symmetry: mirror and polar twins Claws: make, place, bend and edit
2.3.0 29 September 2026
Symmetry, Place Claws and Edit on Surface Symmetrical designs with live twins, and two new tools to place and adjust claws and stones on a surface.
New
Symmetry groups: mirror on X, Y or Z or repeat round an axis, as live twins that follow their master. Place Claws on Surface (Alt+C): snap claws into the gaps between stones or onto a girdle. Edit on Surface (Shift+E): pick a stone, claw or bead, slide it over its surface, resize it or delete it. Symmetry while placing: X, Y, Z, P and F work inside Place Gems and Place Claws. Improved
Re-landing casts each twin back onto its surface, for designs whose two sides differ. Ctrl+Shift+G flips the guides in Object Mode. In the manual:Symmetry: mirror and polar twins Place & Guides: place stones on a surface Claws: make, place, bend and edit Keys and menus
2.2.1 24 September 2026
No claw thinner than 0.35 mm A floor of 0.35 mm for every claw and prong.
Improved
Any requested claw or prong diameter below 0.35 mm is raised to 0.35 mm, so none is built thinner. In the manual:Claws: make, place, bend and edit
2.2.0 24 September 2026
Seat cutters, pave claws and row ends Seat cutters default to 95 percent of the girdle, pave gets small claws instead of balls, and row ends are held better.
New
Pave claws: a small round claw with a domed top stands on the girdle plane, instead of a ball. Improved
Seat cutters default to 95 percent of the girdle, with no extra clearance. At the end of a row the rim is never counted as a hold; a pair of holds goes in the widest empty arc. In the manual:Seats, divots and azure cutters Bezels, pave and channel
2.1.1 23 September 2026
Light-hole fix, narrow rows, alloy names Three fixes found while building a ring: no fin at the light hole, graduated rows for narrow fields, and alloy name matching.
New
Graduated row for a narrow field: one row along the middle, with the most stones and the largest at the widest point. Fixed
No thin fin of metal is left at the mouth of the light hole under any stone. Alloy names such as platinum 950 now give the right density instead of a near match or an error. In the manual:Seats, divots and azure cutters Bezels, pave and channel Reports & Checks: weight, checks and print files
2.1.0 23 September 2026
Pave Fill Fill the region inside a closed curve with graduated round stones.
New
Pave Fill: fills the region inside a closed curve on any surface with graduated round pave; other curves become holes. Rows follow the outline, sizes graduate with the local width, and neighbours differ by at most one size step. Beads and cutters can be added in the gaps. Improved
Additive only: nothing that existed before changed. In the manual:Bezels, pave and channel A pave band: a row of stones all round
2.0.3 14 September 2026
Spacing while placing stones Change the gap between stones without leaving Place Gems.
New
Alt+Wheel, or the [ and ] keys, change the spacing in 0.05 mm steps while placing (Ctrl 0.10, Shift 0.01). Improved
The preview recolours at once, and the status bar shows size, spacing and the live gap. In the manual:Place & Guides: place stones on a surface Keys and menus
2.0.2 14 September 2026
Guides follow your last placement Place Gems remembers whether you had the guides on.
Improved
Place Gems switches the guides on when it starts, unless your last run ended with them off; G toggles them while placing. The remembered state survives files and restarts. In the manual:Place & Guides: place stones on a surface
2.0.1 14 September 2026
Shift+G now starts Place Gems The Place Gems key was being taken by a Blender key, and now works.
Fixed
Shift+G did nothing because Blender's own Select Grouped took the key first; the add-on's key now wins in Object Mode. In the manual:Keys and menus Place & Guides: place stones on a surface
2.0.0 14 September 2026
A rebuild as a Blender extension A rebuild of the earlier toolkit as a Blender extension, with the book's standards and the first tools.
New
Installs as a Blender extension under GPL-3.0-or-later. The book's standards with page references: ring sizing in UK, US, EU and JP, stone densities and carat estimates, and house defaults. Units at 1 unit = 1 mm, with a panel warning and a one-click fix. The first tools: rings, stones, placement, claws, seats and checks, each built to the book's figures. Improved
Internal rebuild: tidier code, one place for keys, and a switch-off that leaves nothing behind. In the manual:What CAD/CAM Jeweller is Your first ring in five minutes Install the add-on Rings: size, rail, band and eternity