Lab-created gemstones are different from natural gemstones. Usually, lab-created gems are mass-produced in standard sizes, so they are often sold in common calibrated sizes. That will fit the most standard jewelry making.
The following chart is the synthetic gemstones calibrated sizes as per cuts.
The above shapes and sizes, most of them we have available stones in stock. If you don’t find your sizes & shapes here, please contact us for customization.