Provenance
Every stone carries its origin, forever.
Eight stages, each sealed with the seal of the stage before it. Together they hold permanently.
Why it matters
Every small stone keeps its history.
A three-carat stone gets a certificate and a file. Melee, traditionally, gets a weight and a size range. Ours carries the same depth of record as a single large stone.
Buyers are increasingly asked to state origin down the chain. With LEAD, the answer is already documented.
How it works
Each stage carries the one before it.
At the end of every stage we take what happened — the lot, the weights, the department, the date, the people — and seal it together with the previous stage's seal into a single value.
Because each seal is computed over the one before it, the stages form a chain rather than a list, and the chain proves its own consistency. It is the same principle a blockchain uses, applied to our own floor.
-
01
Purchase
Rough acquired under the Kimberley Process, mine of origin on record. The genesis record — the one stage with no predecessor.
#b3e08c17 -
02
Memo
The lot is issued to the factory to begin manufacture. A stone leaving the vault is a movement worth recording.
#08d4a2c6 -
03
Kapan
Internal lotting into the working parcels the floor is organised around. Weights in and out are reconciled here.
#4d71aa02 -
04
Factory
Twenty-nine departments, planning through final inspection. The longest stage, logged department by department as the work happens.
#77c25e90 -
05
Assortment 1
Premium size and quality lines separated out.
#a0d113e5 -
06
Assortment 2
Commercial lines — the working volume of the business.
#5c88f24b -
07
Assortment 3
Smalls and specials — tracked to the same standard as every other line.
#2f91b0d4 -
08
Sale
The journey is sealed. The record goes with the parcel, and the chain reads back to the rough.
#e6193fb4
The hashes shown above are illustrative, taken from our film. Live values are issued per lot.
What it means for a buyer
Three things you can verify yourself.
No gap between the rough we bought and the parcel you receive
Each seal confirms every seal that follows it
Kimberley Process certification and mine of origin held at the genesis record
- Sealed stages
- Eight, from purchase to sale
- Chained
- Each seal computed over the previous seal
- Granularity
- Lot level throughout, department level inside the factory stage
- Held by
- LEAD, on our own systems, for the life of the record
- Available to
- The buyer of the parcel, on request, at any point after sale
Every diamond we deliver carries the same trace.
The same chain runs behind every parcel we ship, at every size we cut. Ask us to walk you through one.