Lab diamonds are a lower-priced alternative to natural diamonds.
Diamonds have a certain charm! And lab diamonds are making prices more competitive than ever before.
There’s nothing quite like glittering diamond facets, although I’ve enjoyed exploring diamond alternatives.
Gemstones, white sapphires, moissanite, cubic zirconia and more.
Natural and lab diamonds have a specific sparkle that’s hard to replicate!
CZ crushed ice can look diamond-like but may scratch, and often has visible windowing. Moissanite has double-refraction rainbow sparkle (birefringence) and occasionally visible little squiggles in curved cuts (eg. Pear / oval shape.)
But where to find big lab diamonds over 5+ carats? Here’s my shortlist of the three providers I’d consider.
Novita
Top pick : most big stones selection / quality cuts / international locations
- Sizes up to 20 carat
- Coloured stones available
- Locations 9 countries
- Fancy colours
- REDIRECTS to local website only
- HK website looks spammy
- NO affiliate program
Brilliant Earth
Second choice : good big stones selection / quality cuts
- Sizes up to 43.31 carat
- Coloured stones available
- Locations USA only (+ virtual viewing)
- YES affiliate program
James Allen
Limited larger stones / varying quality / windowing common
- Sizes up to 30 carat
- Coloured stones available
- Locations USA only (+ virtual viewing)
- Fancy colours, gemstones & moissanite
- NO ratio option on stone selector
- YES affiliate program
NOTE : Prices and available sizes change regularly. This is a fast-evolving industry; information at time of publishing may be outdated by time of reading! Use the free stone search tool on relevant websites to see current available options.
Or explore your favourite styles with diamond-like CZ rings under US$100-
What diamond shape / style / fit is right for you? Best to test and try to check comfort & wearability.
I like to explore with CZ (cubic zirconia) options – see my post on dreamy travel rings over 3 carats.
I’ve also curated some shoppable sparkles that look like diamonds! Check out my Amazon Affiliate store (category Jewels.) Hope you enjoy finding your favourite styles!
