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Facet
One of the flat surfaces of a cut
stone or glass.
Faceting
A method of cutting and polishing the
surface of a stone.
Fancy diamond
Rare type of Diamonds that are
red, blue, green, or purple in color and are quite expensive.
Fancy cut
An unusual cut of stones.
Some fancy cuts include the heart, fan, rivoli, trapezium,
cathedral window, half-moon (lunette), kite, and triangle.
Fantasy cut
A new style of faceting
stones in which there is a quite freeform regarding angels – virtually anything goes.
Faux
Literally meaning false this term is used for an imitation gem.
Feather
An internal flaw of a stone also known as
an inclusion, it can start at the surface of the
stone and extend deep inside. Feathers can either ruin a stone or add to its
beauty.
Feldspar
A mineral family have stones like moonstone (adularia), amazonite, sunstone, and
Labradorite.
Fetish
A charm, amulet, pendant or
other decoration that is related with magical properties. It
usually represents an animal or person.
Fibula
A type of brooch (pin) that resembles a safety pin. It is used as
cloth accessory.
Figural
A kind of jewelry design in which the jewelry pieces resembles a
real objects. Common subjects are the human body, animals
(especially butterflies, dogs, cat, birds, and shells), flowers,
leaves, and everyday objects (like baskets and fans).
Findings
Parts used by jewelers in jewelry making. For example, clasps, hooks, pin backs, jump
rings, and earring backs are findings.
Fineness
Fineness is the proportion of
silver or gold in a metal alloy. Fineness is usually expressed in
parts per thousand.
Finger ring size
Method used for measuring the size of finger for a ring. A finger – ring
gauge is used for the purpose. The rings are marked with their size and the
person determines which one fits well. Another, less accurate
method is a cardboard card with cut-out holes marked with the
ring sizes.
Fire
The fire of a stone determined with the streaks of brilliant
color within it. Good quality opals have a lot of fire.
Fire opal
Opal firey
orange to red color in color with little transparency and usually
milky. Fire opals are found in Western Australia,
Mexico, Brazil, Guatemals, and Honduras.
Firestone
Fire stone is an imitation iridescent rainbow quartz, made by heating rock crystal until it
crazes and then putting it into dye as it cools.
Flaw
A flaw is a an imperfection in a gemstone.
Flaws can be in form of cracks, inclusions of other minerals or liquid
–filled cavities. Flaws can
greatly reduce the value of a stone, but in some cases, like moss
agate or rutilated quartz, it also increase the value of the
stone.
Floater Necklace
Also called invisible necklace because it gives the looks as
though the beads are simly floating on the skin. Actually the beads or
pearls are strung far apart from one another on an almost
invisible string that provides such effect.
Florentine finish
A kind of metal finish that
reduces the metal’s reflectivity. It is accomplished by engraving
parallel lines into the surface using a sharp tool, and then
making more lines or curves at right angles (cross-hatching).
Fluorescence
Fluorescence is property in which light is emitted from an object. Many stones
(including some diamonds) fluoresce when exposed to ultraviolet
light.
Fob
A short chain or ribbon that
attaches to a pocket watch; it frequently had decorative
medallion or other ornament attached to one end.
Foilback
called foiled stone too, it is a stone that has a metallic
foil backing frequently composed of mercury and tin.
Silver-colored, gold-colored, or other – colored foil is applied
to the back of a stone to make the stone more reflective.
Fold-over clasp
It is a jewelry fastener that
is composed of a device that opens and closes with a hinge, and
latches shut. It is used to attach the two ends of a necklace or
bracelet.
Fracture
Also known as feather it is a crack in a gemstone.
French enamel
French enamel refers to fine enamel work, first developed in Frances.
It is a technique in which many thin layers of translucent colored enamel are applied to a metal surface.
After firing the piece at temperatures of up to about 820C, the
work is polished. A final layer of clear enamel often covers the
piece.
Freshwater pearl
A pearl
harvested from a freshwater mussel (mollusk). These pearls are
frequently shaped like crisped rice cereal, and are less valuable
than oyster pearls. Biwa pearls are very good quality freshwater
pearls.
Frost Agate
An agate with white markings
and looks like frost.
Full Cut
A full cut stone is a gemstone with 58
facets.
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