Product categories and sourcing
Diamond Carat Sizes: 0.30, 0.50, 1, 2, 3 and 5 Carat
Source a natural or lab-grown diamond by weight: ranges from 0.30 to 5.09 ct, measurements, price and offer comparisons.
DiamondTrade / 21
Carat measures weight
One carat is 0.2 grams. Shape and proportions affect how that weight translates into visible size. Separate natural from laboratory-grown diamonds and compare stones with similar specifications.
Choose a carat range
Each link opens the exact range shown. These are starting ranges for sourcing, not fixed prices or a promise of stock in every combination. You can adjust both boundaries in the catalogue.
0.30–0.39 ct
0.50–0.59 ct
0.70–0.79 ct
1.00–1.09 ct
1.50–1.59 ct
2.00–2.09 ct
3.00–3.09 ct
4.00–4.09 ct
5.00–5.09 ct
How to compare prices
Build a shortlist with one origin, one shape and comparable specifications. Compare total price, price per carat, measurements and documentation. Do not multiply a one-carat price to predict the price of a two- or three-carat stone.
One-carat diamond pricing in detail · How diamond prices are calculated
From information to a precise shortlist.
Apply the criteria to the current catalogue, then verify documentation, price and availability for the selected stone.
Open the catalogue