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Nacre: iridescent substance forming the outer layer of a pearl (or lining of a shell.)

Naif: outer surface of a rough diamond.

Nardi: Venetian jeweller famous for his blackamoor (‘Moretti’) motif brooches.

Nassak: celebrated Indian diamond, currently owned by Robert Mouawad.

Natural: a part of the naif (outer skin) of a diamond that remains after cutting.

Navette Cut: A gemstone shaped like into an oval with pointed ends.

Negligee: Long necklace that ends in irregular lengths with tassels or drops.

Neo-Renaissance: a 19th century style movement inspired by the Renaissance.

Neo-Classical:  jewellery inspired by the Classical era, particularly prevalent from 1760 to 1830.

Niello: Metal inlay technique which uses a composition of metal sulfides to blacken areas.

Nephrite: variety of jade.

Nickel:  silver-white chemical sometime used in gold alloys.

Nickel silver: Alloy of copper, nickel and zinc. Also called German silver.  Looks similar to silver but does not contain any silver. Sometimes contains trace amounts of tin, lead or other metal.

Nicolo: Cameo or intaglio carved in onyx in such a way as to create a translucent bluish, grey image contrasting with the surround.

Niello: (from Latin: Nigellus = “blackened”). A black metallic sulfur alloy used as a metal surface decoration technique similar to enamel.

Niobium: soft grey metal used to create alloys. Known for low toxicity.

Noble metals: pure, non-oxidising, non-corrosive metals, including gold, silver and platinum.

Noto, Giovanni: cameo artist.


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