Jewellery listing software that reads the certificate for you.
A lab report is the product’s truth. CaratList reads it once, attaches the 4C data to the SKU, and every listing on every channel inherits it — so what you publish can never contradict the certificate.
GIA 2185746103 — 1.02 ct · F · VS1 · Excellent
Hallmark 585 read from photo 2
Recommended price ₹23,400–₹26,100 · 34 comparables
3 drafts claim a certificate that is not uploaded
Running on your catalogue right now — every line below happened without anyone opening a tab.
actions today
needed you
unattended
grade mismatches across 412 certified SKUs
Jewellery listings fail on data you already own.
The certificate is retyped
4C data goes from a PDF into a spreadsheet into six listings. Each hop is a chance to be wrong.
Returns come from one wrong letter
VS1 typed as VS2 is a dispute, a return and a rating hit.
Pricing by feel
Per-carat value moves. Pricing a 1.02 ct F VS1 off last month’s gut is money either way.
Before and after
A jeweller’s week
The same work, measured twice — today’s numbers against the same catalogue running on MergeKart.
Six tools, five hubs, nothing talking to anything else.
Every job feeds one record, and the marketplaces follow it.
grade mismatches per 100 SKUs
6
returns from data errors
4
of SKUs priced on comparables
20%
The certificate drives the listing.
One ring — GIA 2185746103 — followed from scanned report to priced, live listing.
Lab
GIA · report 2185746103
AICarat
1.02 ct
AIColour
F
AIClarity
VS1
AICut
Excellent
AIFluorescence
None
AIEvery extracted field stays editable, and shows that MergeKart — not you — filled it.
0
grade mismatches
412 certified SKUs · 8 weeks
1 min
per certificate, not 14
scan and confirm vs manual entry
100%
of SKUs priced on comparables
per-carat band, per stone
“Our listings cannot contradict the certificate any more. That single change removed most of our returns.”
“Zero grade mismatches since switching”
Works better with
The jewellery toolkit is CaratList plus three horizontals.
CaratList
Certificates, 4C data and hallmark OCR
Magic Lister
Guided capture for the jewellery shot list
PriceLens
Per-carat repricing against live comparables
Vertical · from ₹4,800/mo
See full pricing →Questions sellers actually ask.
Certificate data is captured from the lab report itself, including the issuing lab and report number, so the published listing states what the certificate states rather than what someone retyped from it.
Carat, colour, clarity and cut populate the required jewellery attributes each marketplace enforces. Filling them from the certificate is what stops a listing being rejected for data rather than for quality.
Comparable sold stones set a band rather than a single price, and the payout breakdown shows what actually reaches you after each channel’s fees — so a higher headline price is not mistaken for a better one.
A category-specific shot list covers the hallmark, the clasp and setting, and a scale reference — the shots buyers and channel policies expect, captured as a guided pass rather than remembered per item.
Send one certificate and one ring photo.
We will read the report, build the draft and price it on comparables while you watch.
No card for the first 14 days · your catalogue, not a sandbox