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This diamond selector doesn't react on stones like fake crystals, or simulants such as cubic zirconium, when the probe touches the surface. It is the easiest answer for the vast majority of retail jewelers, pawn brokers and chain stores when faced wi..
This Chelsea Filter is designed to transmit only deep red and yellow-green light (best obtained under strong electric light). Just hold the filter close to your eye and look at the stones. Multiple stones can be viewed at once. It is helpful with..
Ruby Filter is a filter that is extremely useful in differentiating red stones such as Ruby, Spinel, Tourmaline, and Garnets from others that might look similar in comparison. Using it is as simple as holding the filter close to your eye, look at t..
It is a sure way to tell the difference between diamonds and moissanite (man-made diamonds). This tester will leave you in no doubt as to the nature of your stones. It is a "touch and tell you" device that utilizes the moissanite feature, the di..
A handheld spectroscope for visible light shows the absorption lines of the elements involved in producing its color. For instance, it helps to separate ruby (chrome) against red or pink sapphire (iron). Spectroscope breaks up the light that is bei..
Functii: Operare usoara fara a fi necesara ajustarea LED-urilor prin controlul de volum pentru calibrarea in functie de pietre de dimensiuni diferite asa ca in cazul altor testere de diamante. Poate fi alimentata de baterii alcaline AAA, ba..
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