Diamond Passport

Lab-grown diamond example

This example shows how a lab-grown diamond is tracked through the Passport system. We follow the diamond from creation at a certified lab through IGI verification and custody transfer to a reseller.

About this example

All data shown is simulated for demonstration purposes. Actual passport IDs, certificate references, and timestamps would be generated by the system.

Step 1: Passport Created

The diamond receives a unique, non-personal identifier when minted.

Passport Record

json

{
  "passportId": "psp_diamond_igi_2025_001",
  "assetType": "diamond",
  "status": "active",
  "mintedAt": "2025-01-15T09:00:00Z"
}

Step 2: Attributes Bound

The 4Cs and certificate reference are bound as immutable attributes.

Carat

2.15

Cut

Excellent

Color

Clarity

VVS1

Bound Attributes

json

{
  "carat": 2.15,
  "cut": "Excellent",
  "color": "D",
  "clarity": "VVS1",
  "certificateRef": "IGI:LG528293847",
  "labGrown": true,
  "shape": "Round Brilliant"
}

Event Timeline

The append-only event log tracks every significant moment in the diamond's lifecycle.

provenance

1/15/2025, 9:01:00 AM

evt_001

Origin: Lab-grown
Facility: Superior Diamond Labs
Method: CVD

Raw Event Data

json

{
  "eventId": "evt_001",
  "eventType": "provenance",
  "timestamp": "2025-01-15T09:01:00Z",
  "data": {
    "origin": "Lab-grown",
    "facility": "Superior Diamond Labs",
    "growthMethod": "CVD"
  }
}

verification

1/16/2025, 2:30:00 PM

evt_002

IGI VerifiedCER Institute

Grade: certified
Certificate: igi.org/verify/LG528293847

Raw Event Data

json

{
  "eventId": "evt_002",
  "eventType": "verification",
  "timestamp": "2025-01-16T14:30:00Z",
  "verifier": {
    "nodeId": "verifier_igi_main",
    "type": "cer_institute",
    "name": "IGI Certified"
  },
  "attestation": {
    "verified": true,
    "grade": "certified",
    "certificateUrl": "igi.org/verify/LG528293847"
  }
}

custody transfer

1/20/2025, 11:00:00 AM

evt_003

From:

lab_custody_001

To:

reseller_node_042

Transferred to authorized reseller

Raw Event Data

json

{
  "eventId": "evt_003",
  "eventType": "custody_transfer",
  "timestamp": "2025-01-20T11:00:00Z",
  "from": {
    "nodeRef": "lab_custody_001"
  },
  "to": {
    "nodeRef": "reseller_node_042"
  },
  "notes": "Transferred to authorized reseller"
}

Privacy by Design

Notice that no personal information (names, addresses, contact details) appears anywhere in this passport. Custody transfers use node references only. The human identity layer (GardenID) is completely separate from asset data.

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