Use a 10x loupe to see whether the lab grown diamond is mono-refractive or birefringent. lab grown diamonds are mono-refractive stones, while moissanites are birefringent. If you look down from the table to the pavilion of the lab grown diamond with a 10x loupe, you can see that the prongs near the bottom tip are overlapping, or if you can see that the prongs near the bottom tip are overlapping from the kite surface at an angle, then it is probably moissanite, not lab grown diamond.
*One carat is equal to 0.2grams.
*The waist diameter of the diamond will be affected by the cutting method and proportion. So the same weight diamonds may have different waistlines.
Diamonds grown in the lab may be another choice for consumers.
lab grown diamonds are real diamonds in every sense,they are chemically, physically, atomically and optically the same as the natural diamonds. lab diamonds are a kind of diamond produced and manufactured by artificial methods to simulate the crystallization characteristics of natural diamond.
Natural & Synthetic,which one is environmentally kind!
As we all know, the mining sites of natural diamonds are very difficult to select,and the mining project is enormous and environmentally destructive by using some large machinery.That results in some serious problems including blood diamonds,conflict diamonds,child labour, human rights violations,resource exhaustion and environmental crisis.
Specific gravity liquid: The specific gravity of lab grown diamond and moissanite are not the same, so you can distinguish them by using specific gravity liquid, but only for unset stones. (The chemical composition of the specific gravity liquid is diiodomethane, which is highly toxic, so you should be especially careful in using it.)
Fire method: burn the gemstone with a lighter, moissanite will appear slightly yellow, but after annealing, it will return to its original state, while the color of lab grown diamond will not change after the fire. But be careful, do not exceed 600 degrees, or the real lab grown diamond will oxidize. Unless as a last resort, generally do not try this method to avoid disputes.