Numismatic and Estate Appraisal
If your profession is assessing the fair market value of precious objects, whether coins, estate jewelry and plate, or other collectibles, you need a magnifier of the highest quality.
A Zeiss D12-AR is an excellent choice for inspecting ceramics and furniture, while a Zeiss D16-AR is better for gold and silver pieces, and for costume jewelry.
For higher-power viewing of semi-precious stones in jewelry, you can carry the handy Zeiss D12+24 multi-lens pocket loupe magnifier wherever you go.
And for appraising fine gemstones, the Zeiss D40 10X pocket loupe is the standard of the trade.