1-Grading report: Lab-grown diamonds usually come with a grading report that clearly states where the diamond came from and how it was made. You can check the details on the certificate to determine if a diamond is lab-grown.
2-Optical Inspection: Lab-grown diamonds often have some unique characteristics, such as more uniform color and fewer inclusions. These characteristics can be found through optical inspection to determine whether a diamond is lab-grown.
3-Magnetic Field Detection: Lab-grown diamonds often contain elements such as iron or nickel that respond to magnetic fields. Diamonds can be tested for these elements using a magnetic field tester to tell if they are lab-grown.
4-Diamond Cut Characteristics: Lab-grown diamonds often have some cutting characteristics that differ from natural diamonds, such as straighter edges and more regular facets. You can tell if a diamond is lab-grown by looking at its cut characteristics.