Gemmological GemSET_LEM-3 ® refractometers:
range 1,30 - 1,81 readability 0,01.
It comes with
a 1.79nD refractive index fluid,
a monochromatic filter,
a polarizing filter and an elegant case.
 
Prix ttc : 490 €, sur commande.
Liquide Anderson 1.79,
 
Prix ttc : 25€, sur stock.
 
Méthodologie
Liquide Anderson