Paillonné: a 19th century enamelling technique utilising layers of translucent colored enamel on fine sheets of silver or gold.
Paillons: Small pieces of metallic foil placed beneath enamel work to provide a glow, popular in Arts and Crafts jewellery.
Palladium: White precious metal belonging to the platinum group. It weighs a little more than half as much as platinum.
Pampilles: Cascade of pendant stones that appear like rain drops. Popular in Georgian jewelry.
Paraiba: a variety of tourmaline (neon blue and green).
Parure: Suite of matching jewelry usually four or more pieces, (necklace, bracelets, earrings, belt or brooch).
Passamenterie: Jewelry inspired by furniture trimmings
Paste: Leaded glass faceted to imitate diamonds or backed with colored foils to imitate other gemstones. Also known as strass after Frederic Strass who invented this method in the 18th Century
Pâte de verre : French art glass technique that allows subtle graduations of colour.
Patina: Discoloration that forms on metals such as silver and bronze, sometimes an intentional part of the design created with chemical
Pavé: A stone setting technique whereby the entire surface of a piece is closely set with small stones.
Pavilion: Lower part of a cut gemstone below the girdle.
Peacock: Tahitian cultured pearls with dark green-gray to blue-gray colour and a pinkish or purple overtone.
Peau d’ange: (from French: angels skin) is a particular deep pink colour of certain corals.
Pebble jewelry: refers to Scottish polished gemstone jewelry.
Peking glass: faux-jade green glass.
Pendaloque: Pear or tear drop shaped gem faceted as a brilliant cut, suspended from a smaller stone, usually separated by a bow or other motif.
Pendant: Neck jewelry that features an ornament hung from a chain, string, cord or wire.
Penannular: (means “almost closed”). Penannular brooches (often Celtic cloak pins) are ring shaped and not fully closed, sometimes with a pin.
Pendant: a dangling ornament.
Pendeloque earrings: ( c. 1770’s) earrings with a round or marquise shaped top, a bow motif and a drop.
Pennyweight: a unit of Troy weight for weighing precious metals.
Penthièvre: famous diamond on display in Chantilly France at the Musée Condé.
Peridot: golden green gemstone, gem variety of the mineral forsterite.
Pewter: alloy of tin, lead, antimony and copper.
Pigot Diamond: famous missing diamond.
Pin: a small decorative jewelry item designed to be affixed to a garment with a pinstem.
Pinstem: finding on reverse of brooch that pierces garment.
Pietra Dura: Mosaic of colourful semi-precious stones set into black marble or onyx. Also referred to as ‘hard stone mosaic’.
Pinchbeck: A gold simulant. Invented circa 1720 by Christopher Pinchbeck. Made of a mixture of copper and zinc.
Piqué: Tortoiseshell or horn inlaid with mother-of-pearl, silver or gold.
Pistachio: Tahitian cultured pearls with a yellowish greenish color.
Pistol gold: gold alloyed with 895/1000 parts of gold.
Pitt-Regent: famous diamond, displayed in the Louvre.
Planishing: Metal hammering process to create a smoother finish.
Plaque: (from French: plate) a central, decorated plate of metal or other material.
Plaque de cou: central decorative element on a dog collar necklace (collier de chien).
Platinum: Non-corrosive silver white metal, heavy with a high tensile strength.
Play-of-color: the changing colours within an opal.
Pleochroism: Property of most doubly refractive colored minerals showing two or three different colors when viewed in different directions.
Plique à jour: Enamelling technique using transparent enamel and metal outlines, creating a stained glass window effect. Popular in the Art Nouveau era.
Poinçon: French for hallmark.
Point cut: diamond cut.
Pointillé: Decoration technique where motifs are created by dots or small points.
Poissarde: (from French: “fishwife”) type of earring ( c. 1790-1810) with an elongated geometrical shape, sometimes gem set, often with ornaments below each other.
Polychrome enamels: enamels with many colours.
Pomander: A pendant containing scent.
Porcelain: a fine ceramic material that can be used in jewellery.
Post: short length of straight wire attached to the back of an earring which passes through the earlobe.
Posy Ring: Ring engraved with a verse on the interior.
Prase: green colored quartz aggregate with inclusions.
Precious: applies to gold, silver and platinum and certain rare minerals used in jewellery (diamond, ruby, emerald etc). The term ‘semi-precious’ is discouraged in modern usage.
Princess cut: popular contemporary diamond cut.
Princess length: Necklace of approximately 50 cm (17-19 inches) .
Promise ring: Ring to indicate commitment between two people
Prong: Collection of wires to secure gem in a setting.
Provenance: documentation of an historical item’s origins and travel through time.
Pseudo Hallmark: 18th, 19th and early 20th century marks which resemble legitimate marks or are completely made-up.
Puzzle ring: ring made from rings linked together in such a way that they form a puzzle.
Pyrope: Bohemian garnet.
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