For the trade
Buying Lab-Grown Diamonds Wholesale from India: Prices per Carat, Certificates and Ordering (2026)
Updated: · Vibama Jewels
If you run a jewellery store, a brand or a design studio, buying lab-grown diamonds at the source cuts out one or two layers of margin. This guide explains how wholesale buying from India works and what to check.
Why buy from Surat?
Surat, in Gujarat, is the world's largest diamond cutting and polishing centre, and it has become a major centre for growing lab-grown diamonds with CVD and HPHT equipment. Growers, cutters and graders work in the same city, which keeps lead times short and prices close to cost.
How wholesale lab-grown pricing works
Lab-grown prices have fallen sharply as production has grown. Many suppliers now quote a flat rate per carat rather than a price grid by colour and clarity, at least for the grades most jewellers buy.
Our current wholesale rates, with an IGI report:
| Size | Rate | Example |
|---|---|---|
| Below 1 carat | $200 per carat | 0.50 ct = $100 |
| 1 carat and above | $125 per carat | 2.00 ct = $250 |
The same rate applies to every shape, colour and clarity on our list. The full table, by size and in GBP, EUR and AUD, is on our wholesale diamonds page.
Certificates: what to ask for
- Centre stones: an IGI or GIA report, with the report number laser-inscribed on the girdle. Check every number yourself on IGI or GIA Report Check.
- Disclosure: under the FTC Jewellery Guides and similar rules elsewhere, lab-grown stones must be sold as laboratory-grown. Make sure your supplier's invoice says so for every stone, and pass that on to your customers.
- Treatments: some lab-grown stones are treated after growth to improve colour. The report states this.
How an order works
- Send a list: shapes, sizes, quantities and grades, plus any matched pairs or calibrated parcels.
- The supplier replies with available stones, report numbers and prices.
- You approve each stone from its report and video.
- You pay by bank transfer or card.
- The parcel ships insured, with the reports and an invoice stating the origin of every stone.
Shipping, duties and paperwork
Insured express couriers deliver from Surat to the USA, UK, EU and Australia in a few business days. Import duty and VAT/GST depend on your country, whether the goods are loose stones or set jewellery, and current trade rules, so check them with your customs broker before a large order. Always have the full value declared.
Frequently asked questions
What is the wholesale price of lab-grown diamonds in 2026?
It varies by supplier and grade. Vibama Jewels sells IGI-certified lab-grown diamonds at $200 per carat below 1 carat and $125 per carat from 1 carat, for every shape, colour and clarity on its list.
Is there a minimum order?
Ask your supplier. We quote any quantity; send your list with the trade enquiry form.
Can I get matched pairs and parcels?
Yes. Give the shape, size range, quantity and grades, and the supplier matches stones for earrings, eternity bands and tennis bracelets.
Can the same supplier set the stones into jewellery?
Many Surat suppliers also manufacture. We make rings, earrings, bracelets and chains on job work: see jewellery manufacturing.