Developed by Gem-A, this 10x triplet loupe estimates the weight of diamonds and gemstones in mounted jewellery with the use of the built in engraved scale. This loupe has an 18mm achromatic and aplanatic lens and an adjustment focus to minimise distortion. Complete with weight estimation formulae and travel case.
Measuring Range = 0-11 mm (around up to 5 ct)
Magnification = 10X
Dimensions / Lens = Φ21 x 33 mm / Triplet
Application = Round, Oval, Heart shaped, Baguette-cut etc
