01
Inspect
Drop in a CAD file and get ring size, band dimensions, metal weight per alloy and every stone measured — plus the checks a caster cares about.
Jewellery CAD, measured and rendered in your browser
See every detailbefore it's cast.
Upload a ring and get its size, stone carats and metal weight in seconds. Style it in photoreal 3D, then share a 360° view anywhere.
Culet Studio by Frost Leaf · Free to try · Files never leave your computer
Tested on 25 real MatrixGold production orders
- ring sizes exact vs MatrixGold
- 21 / 21
- stone length & width
- ±0.03 mm
- centre-stone shapes identified
- 20 / 20
- to open a 60 MB Rhino order
- ~25 s
One studio
From CAD file to customer, in one place
Culet Studio replaces the back-and-forth between CAD software, render farms and photo studios.
02
Style
Six precious metals with real purities, twelve stone colours per stone group and studio lighting tuned against leading jewellery retailers' photography.
03
Share
Export a smooth 360° spin or a live 3D view and embed it on any product page with one line of code.
Inspection
The numbers your caster asks for — before they ask
Culet Studio reads the geometry itself. No layer names, no plug-ins, no MatrixGold licence on the receiving end.
Ring size in US, UK, ISO and India scales
Weight for every alloy from the true solid volume
Each stone's shape, dimensions and estimated carat
Watertight, thickness and stone-clearance checks
DetailsV-band · Rhino 5 .3dm
Ring
- Ring size
- US 7
- Inner diameter
- 17.30 mm
- Band width × thickness
- 1.77 × 2.16 mm
- Metal volume
- 203.3 mm³
Weight by alloy
- 14K yellow gold
- 2.66 g
- 18K white gold
- 2.98 g
- 18K yellow gold
- 3.17 g
- Platinum 950
- 4.09 g
- Sterling silver 925
- 2.11 g
Checks
- Watertight solid
- Ring size matches file name
- No loose fragments
Try it live
Every metal. Every stone. Your file.
This is the real studio. Drop in a ring and see it rendered here — your file stays in your browser.
- Upload your own CAD file
- Rotate, zoom and switch views
- Try every metal and purity
The inspection report, stone colours, diamond shine and 360° export are unlocked in the full studio.
studio.culet.frostleaf.coLive
Starting the studio…
How it works
Three steps, no install
01
Upload your CAD
Rhino, MatrixGold, STEP, IGES, STL, OBJ, FBX or GLB. Files are processed on your machine across every CPU core.
02
Read the report
Culet Studio finds the stones by their geometry, orients the piece and measures everything — no layer naming required.
03
Style and share
Pick metal, purity and stones, set the light, then export a 360° spin or live view for your website or client.
Opens the files you already have
.3dmRhino & MatrixGold, NURBS included.stepSTP.igesIGS.stlprint-ready meshes.obj.fbx.ply.glbglTF
Including MatrixGold files saved without render meshes.
Built for
Everyone between the CAD file and the customer
Questions
Do my CAD files leave my computer?
No. Files are read and measured in your browser. A model is only stored on our servers when you export a live 3D embed to share it.
Which files can I open?
Rhino .3dm (including MatrixGold files without render meshes), STEP, IGES, STL, OBJ, FBX, PLY and GLB / glTF.
How accurate are the measurements?
On 25 real MatrixGold production orders, ring size matched on every ring, stone length and width were within ±0.03 mm and centre-stone shapes were identified correctly. Carat weights are estimates from the modelled stone.
Can I put the 3D view on my website?
Yes. Every export comes with a copy-paste iframe that works on Shopify, WooCommerce, Webflow or any site you control.
See every detail before it's cast.
Open your next ring in Culet Studio
Free to try. Your files are measured in your browser and never leave your computer.