Buying guide
Where to Buy Lab-Grown Diamonds Online in 2026: How the Main Types of Seller Compare
Updated: · Vibama Jewels
Search "best place to buy lab-grown diamonds" and you get lists of brand names. A more useful question is what kind of seller suits you, because the price, choice and service you get depend mostly on the business model. Here is how the five main types compare, and what to check with any of them.
The five types of online seller
| Type of seller | Examples | Usually best for | Usually weaker on |
|---|---|---|---|
| Large online jewellers | Blue Nile, James Allen, Brilliant Earth, Ritani | Huge settings catalog, 360° videos, showrooms in some cities | Price: you pay for brand, ads and showrooms |
| Lab-grown specialists | Clean Origin, VRAI | Focused lab-grown range, clear lab-grown messaging | Choice of natural stones |
| Comparison marketplaces | Rare Carat | Comparing many vendors' stones and prices in one place | One point of contact: the stone ships from a partner vendor |
| High-street chains | Signet brands, Ernest Jones, Michael Hill | Trying rings on, local resizing | Price, and a smaller choice of loose stones |
| Direct from the maker | Vibama Jewels and other cutters in Surat, Antwerp or Ramat Gan | Price, custom work, talking to the people who cut and set | Showrooms; check returns and import costs carefully |
Many lab-grown diamonds sold by all five types were cut and polished in Surat, India, which handles most of the world's diamond polishing. The difference is how many companies sit between the cutter and you.
What really changes the price
- Certificate lab. IGI and GIA reports are the reference for lab-grown stones. Compare stones graded by the same lab.
- Cut grade. An excellent or ideal cut costs more and is worth it; it decides how bright the stone looks.
- Colour and clarity. For lab-grown, F-G colour and VS clarity look the same to the eye as D VVS and cost less.
- Setting and metal. A ring can cost more than the stone. Compare 14k with 14k and 18k with 18k.
- Margins between cutter and buyer. Each importer, wholesaler and retailer adds its own.
For current numbers by size, see our monthly diamond price index and the price pages for each carat, such as the 1 carat lab-grown diamond price.
The checklist that matters more than the brand
Whichever seller you pick:
- Verify the report yourself on IGI or GIA Report Check using the report number.
- See the exact stone in a video or 360° view, not a stock photo.
- Read the return policy: how many days, who pays return shipping, any restocking fee, and how quickly refunds are paid.
- Check the label: under the FTC Jewellery Guides a lab-grown diamond must be clearly described as laboratory-grown, laboratory-created or [manufacturer]-created.
- Know your total: shipping, insurance and, for orders from abroad, import duty and VAT/GST.
- Pay with protection: a credit card or protected payment service.
Where Vibama Jewels fits
We are a direct-from-maker seller based in Surat. We send the IGI or GIA report and a video of the exact stone for approval before you pay, ship fully insured to the USA, UK, EU and Australia, and show prices in USD, GBP, EUR and AUD. We have no showrooms, so if trying rings on in person matters most to you, a jeweller with stores near you is the better fit. Our returns page and shipping page set out the terms in full.
Frequently asked questions
Is it safe to buy a lab-grown diamond online?
Yes, if the stone has an independent IGI or GIA report that you verify yourself, the seller has a written return window, the parcel is insured, and you pay with buyer protection.
Which is cheaper, an online jeweller or a high-street store?
Online sellers are usually cheaper for the same grades because they carry less stock and fewer stores. Sellers buying direct from cutters or cutting themselves are usually cheapest.
Is IGI or GIA better for lab-grown diamonds?
Both are independent and widely recognised. IGI grades most lab-grown diamonds on the market; GIA also grades them. Compare stones graded by the same lab. Our guide on GIA vs IGI certificates explains the differences.
Do lab-grown diamonds hold their value?
No. Lab-grown prices have fallen as production has grown, and resale value is low. Buy one because you like it and the price, not as an investment.