|
Agate |
A variety of
chalcedony found in all colors; used extensively in Scottish
jewelry |
|
Aigrette |
Jeweled ornament in
the shape of a feather or supporting a feather, worn in the hair
or on a cap, popular in the middle of the eighteenth century and
the early twentieth century |
|
A Jour |
Open setting that
leaves the pavilion facets open to the light |
|
Alloy |
A mixture of two or
more metals |
|
Aluminum |
A silver white metal
that is lightweight and malleable |
|
Amazonite |
An opaque form of
feldspar |
|
Amber |
The fossilized resin
of prehistoric pine trees which ranges in color from golden to
orange-red |
|
Amethyst |
A variety of quartz
found in deep purple to a bluish-violet color |
|
Annealing |
The process of
heating metal and then cooling it to render the metal more
pliable
|
|
Aquamarine |
A form of beryl found
in pale green blue to clear blue colors |
|
Arabesque |
A form of decoration
characterized by flowing lines, scrollwork, leaves, branches,
floral forms, symmetrical in form |
|
Art Nouveau |
A period of design
between the 1890’s and 1910; the jewelry is characterized by
flowing lines, unusual interpretations of nature, the use of
women with long flowing hair and the utilization of unusual
materials |
|
Assaying |
Process of
determining the proportions of precious metal contained in a
piece of gold or silver |
|
Assay Hallmark |
Hallmark showing the
office which assayed the metal used in a piece of jewelry
(English) |
|
Baguette |
Gemstone cut in the
shape of a narrow rectangle |
|
Bakelite |
Trade name for the
first synthesized plastic, phenol formaldehyde resin invented by
Dr. Leo Backeland |
|
Bandeau |
Head ornament in the
form of a narrow band worn low, encircling the forehead |
|
Bandelettes |
Decorated ribbons
worn in the hair |
|
Bangle |
Non-flexible bracelet |
|
Baroque |
Irregular shaped
stone or pearl |
|
Basse-taille |
French for ‘shallow
cut’, enameling technique worked in a chased relief metal and
overlaid with translucent enamel |
|
Berlin Iron |
Cast iron jewelry
worked into delicate openwork patterns, and made in Berlin
during the first half of the nineteenth century |
|
Bezel |
Gemstone setting
where a strip or wall of metal encircles the gemstone |
|
Bijouterie |
Art of working in
gold and enamel |
|
Biwa Pearl |
Freshwater cultured
pearl from Japan |
|
Blister Pearl |
Irregularly shaped
and hollow pearl cut from the shell of the oyster |
|
Bog-oak |
fossilized oak from
peat bogs in Ireland, popular during the Victorian Era |
|
Bolt ring |
A finding that is a
hollow or partially hollow connecting ring which is drawn back
on an internal spring |
|
Borax |
A flux used in
soldering |
|
Brass |
An alloy of copper
and zinc |
|
Brilliant cut |
A cutting style most
often used for diamonds, consisting of 58 facets, also known as
‘modern cut’ or ‘full cut’ |
|
Briolette |
A teardrop shaped
stone faceted with triangular or rectangular facets, sometimes
pierced at the top, also known as ‘drop-cut’ |
|
Bronze |
An alloy of
approximately 8 parts copper to 1 part tin |
|
Buff top cabochon |
Style of stone
cutting where the top of the gemstone is a dome (en cabochon)
and the pavilion is faceted |
|
Bulla |
Two concave plates
that form a hollow receptacle, a form used in ancient jewelry |
|
Cabochon |
Stone with a smooth
carved surface, domed and unfaceted with a flat base |
|
Calibre-cut |
Small stones cut in
usually rectangular shapes and faceted in a step cut to fit
exactly into a setting or against another stone |
|
Calipers |
Instrument for fine
measuring of both the outside and inside surfaces of a stone
|
|
Cameos |
A design cut in
relief, usually into a hard stone or shell |
|
Cannetille |
A type of gold or
silver filigree of fine twisted wires forming a coiled spiral,
used in early nineteenth century jewelry (Georgian period) |
|
Carat |
Unit of weight used
for precious stones |
|
Carbuncle |
A garnet cut en
cabochon |
|
Casting |
Process of forming an
object by pouring a molten or liquid substance into a mould
until it solidifies and takes on the impression of the mould |
|
Catalin |
Trade name for an
early phenol plastic |
|
Chalcedony |
A quartz, greyish-blue
in color |
|
Champlevé |
French term for
‘raised field’, Technique of enameling in which enamel is placed
in stamped or cut recesses of a metal form |
|
Channel setting |
A row of stones of
the same dimension, fitted into a metal channel |
|
Chasing |
Working a design into
a metal from the front using a hammer and/or punches |
|
Chatelaine |
A girdle or belt from
which various implements are suspended
|
|
Choker |
A necklace
approximately 15 inches long |
|
Chrysoberyl |
A semi-precious stone
of transparent golden yellow, green yellow or brown |
|
Citrine |
A variety of quartz
found in a range of colors from light yellow to red-orange to
almost brown |
|
Cloisonné |
Technique of
enameling in which enamels are contained in cells of metal |
|
Collet |
Round band of metal
encircling a gemstone to hold it in place |
|
Collier |
A wide necklace
encircling the neck from throat to chin |
|
Coral |
The skeleton of small
marine animals, found in colors ranging from white to pink to
red |
|
Creole earrings |
A hoop earring
broader at the bottom than at the top, popular in the 1850’s |
|
Cross facet |
Small triangular
facets above and below the girdle of a brilliant cut stone |
|
Crown |
Part of a cut
gemstone above the girdle |
|
Cut steel |
Faceted studs riveted
into arranged holes to created a pavé effect
|
|
Demi-parure |
A small matching set
of jewelry consisting usually of a brooch and earrings, or a
necklace and bracelet, etc. |
|
Diadems |
A semi circular band
worn around the head and usually jeweled and three dimensional |
|
Dog collar |
A wide collar of
fabric, gemstones and or pearls worn high and tight on the neck |
|
Double clip |
Type of brooch
consisting of two halves joined together on a frame which can be
detached and worn singly |
|
Doublet |
A stone consisting of
two separate layers |
|
Dwt |
Abbreviation for
pennyweight |
|
Edema collarettes |
“Dog collar” meant
for daytime wear which is usually made of a soft material laced
to a series of jeweled bars |
|
Electroplating |
A method in which an
electric current deposits a layer of metal on an object (i.e.:
gold over a base metal) |
|
Emerald cut |
Rectangular shaped
stone with mitered corners which is elongated and octagonal
|
|
Enamel |
Process of fusing
powdered colored glass to a surface by means of high heat |
|
Engine-turning |
Decorated metal
surface made by moving the surface of the object against the
blade |
|
Engraving |
A technique in which
metal is cut away with a tool known as a “graver” to form a
design, done by either hand or machine |
|
Etching |
Removal of part of a
metal surface by acid for a decorative effect |
|
Etui |
Small cylindrical
case that hangs from a chatelaine |
|
Facet |
A flat surface ground
or cut and polished on the surface of a gemstone |
|
Faience |
Glazed porcelain or
earthenware |
|
Fede ring |
A ring with two hands
clasped together first |
|
Ferronnière |
Narrow band with a
center jewel worn encircling the forehead |
|
Festoon |
Design motif of a
garland or string of flowers, leaves and ribbons |
|
Fibula |
Archaeological term
for brooch |
|
Filigree |
Wire twisted into
patterns, usually gold or silver, may be soldered to a sheet of
metal or twisted to form an openwork pattern |
|
Flux |
Material used in
soldering |
|
Fob |
A small charm, amulet
or trinket that hangs on a watch chain or chatelaine |
|
Foiling |
A technique used to
enhance the color of a gemstone, a thin sheet of metal is
applied to the base of a stone which is in a closed setting |
|
Freshwater pearl |
Pearls found in river
mussels |
|
Gallery |
A strip on metal with
a pattern usually refers to the sides of a ring |
|
Garnet |
A semi-precious stone
found in many colors. The Bohemian type is blood red, the
almandine variety ranges from deep red to deep purple, hessonite
garnets are brown orange, and demantoid garnets are found in
several shades of green |
|
German silver |
A misnomer for an
alloy of copper, zinc and nickel |
|
Gilding |
A process of covering
substances such as silver, base metal, wood with a thin layer of
gold or an alloy |
|
Gimmel ring |
A ring formed of two
or more linked hoops, which fit together in a manner that make
them appear as one ring |
|
Gypsy setting |
A setting in which
the stone is sunk into the surrounding metal leaving the top of
the stone almost level with the top of the metal surface |
|
Girandole |
A shape that consists
of three pear-shaped stones or pearls hanging from a large stone
or decorative motif such as a bow |
|
Girdle |
The widest part of a
gemstone which divides the crown from the pavilion |
|
Grain |
Unit of weight; for
diamonds and pearls a grain is 0.25 of a carat, 480 grains to
the Troy ounce. A Troy grain is equal to an Avoirdupois grain. |
|
Grain |
A small spherical
bead of metal |
|
Granulation |
The process of
decorating a metal surface with tiny grains of metal |
|
Graver Tool |
A tool similar to a
chisel used for engraving metal |
|
Green gold |
Gold which contains a
high proportion of silver |
|
Gerlots |
Small long pendant
beads |
|
Grey gold |
Gold which contains a
high proportion of iron |
|
Grisaille |
A form of enamel
painted in monochromatic colors |
|
Guilloché enamel |
A form of enamel work
acheived by working the metal on an engine turned lathe to form
a pattern and then enameling over the pattern |
|
Hallmarking |
Marks stamped on
gold, silver or platinum by assay offices after the metal has
been tested and determined to contain the proper amount of
precious metals required by law |
|
Handkerchief ring |
Small ring worn on
the little finger and connected by a chain to a larger ring in
which a handkerchief was held |
|
Hematite |
An opaque mineral of
iron oxide, ranging in color from deep grey to black metallic |
|
Horn |
A substance often
used as a substitute for tortoiseshell which is from cow horns |
|
Ingot |
A precious metal
formed into a bar or brick by pouring molten metal into a mold |
|
Inlay |
Materials such as
stones, gems, woods and metals are inserted and cemented into
the surface of another material and ground down to create a
smooth surface |
|
Invisible Setting |
A channel setting
using calibrated stones without any metal showing from the top
|
|
Intaglio |
The carving or
engraving of a design into a gemstone which is the opposite of a
cameo which is in high relief |
|
Ivory |
African ivory is from
the tusk of a male or female elephant whereas Indian ivory is
from the male only |
|
Jabot pin |
A jeweled tie pin
popular in the 1920’s and 1930’s |
|
Jet |
Fossilized coal,
often known as Whitby jet for the area of England where much of
it came from or black jet |
|
Lace Brooch |
Small brooch usually
set with diamonds, worn in the later 19th Century |
|
Lapidary |
A craftsperson who
cuts, facets, engraves and polishes gemstones |
|
Lavaliere |
A chain from which an
ornament or gemstone hangs in the center |
|
Locket |
A jewel which opens
on a hinge |
|
Lost Wax Method |
The method of casting
metal that uses a rubber mold, which is filled with wax to form
a pattern from which a plaster mold is made. The plaster is
heated and the wax melts away or is “lost” |
|
Mabe Pearl |
A cultured blister
pearl |
|
Marcasite |
An iron ore material,
pyrite, that is facetted into rose cuts and set into silver or
pewter jewelry |
|
Marquise Cut |
A stone cut in an
oval with pointed ends or a boat-shaped stone |
|
Mélange |
Term for mixed
diamond sizes weighing more than carat |
|
Mélée |
Classification used
in the sorting of diamonds weighing less than carat |
|
Mellon Bead |
A hollow and ribbed
bead popular in the Etruscan period and in the 1930’s |
|
Memento Mori |
Jewel that is a
reminder of death |
|
Memorial jewel |
Jewel that is made in
memory of a loved one, often containing hair from that person
and frequently decorated with enamel |
|
Micro Mosaic |
Mosaic of very small
colored glass pieces (tessarae) inlaid in glass or hardstone |
|
Milanese Chain |
Chain consisting of
interwoven rows of small links forming a mesh
|
|
Millefiori |
Glass ornamentation
made from canes of colored glass that are layered, and sliced to
form patterns, flowers or mosaic effects |
|
Millegrain |
A decorating style
creating a fine bead like effect around the edge of a metal
collet; popular in the Edwardian and Belle Époque periods |
|
Minaudière |
The name for a
woman’s small hard vanity case or handbag, usually metal or
wood, which is held in the hand |
|
Mississippi River
Pearls |
Irregularly shaped
pearls, usually elongated. |
|
Mizpah Ring |
A broad gold ring
engraved with the word MIZPAH, meaning “I will watch over thee”,
popular during the Victorian period |
|
Mother of Pearl |
The smooth iridescent
interior lining of the shells of certain mollusks
|
|
Navette Cut |
A gemstone shaped
like a boat or oval with pointed ends |
|
Negligee |
A long necklace that
usually terminates in irregular length with tassels or drops
|
|
Niello |
An inlay technique in
which the grooves made in silver or gold are made black in color
by the use of a composition of metal sulfides |
|
Opal |
A semi-precious stone
with a rainbow-like iridescence which are categorized as three
types: opalescent precious opals, yellow-red fire opals and the
common opal |
|
Orient |
The characteristic
sheen of fine natural and cultured pearls |
|
Paillons |
Small pieces of
metallic foil which are placed underneath enamel work to provide
a glow, popular with a number of Arts and Crafts movement
jewelers |
|
Palladium |
A white precious
metal belonging to the platinum group, it weighs a little more
than half as much as platinum and sells for half the price |
|
Pampilles |
A cascade of pendant
stones; popular in Georgian jewelry and meant to look like rain
drops |
|
Parure |
A suite of matching
jewelry usually four or more pieces, a necklace, bracelets,
earrings and belt or brooch |
|
Passamenterie |
Jewelry inspired by
furniture trimmings such as cording |
|
Paste |
A high content leaded
glass which is 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 |
|
Patina |
Discoloration that
forms on metals such as silver and bronze but often planned for
in the artist’s design, can also be introduced artificially by
use of chemicals |
|
Pavé Setting |
|