Labarum: Monogram using first two letters of Greek alphabet, found in Castellani mosaic jewellery of the 1800’s.
Laboratory grown: Gemstones produced by man.
Labradorescence: Play of light that occurs in gem quality labradorite.
Labradorite: a mineral species / gemstone.
Lace Brooch: Small brooch generally set with diamonds, later 19th Century.
Lace Ring: ring with open worked motifs, resembling lace work.
Lacloche Frères: Spanish jewellery house known for its Art Deco jewellery and objects. Founded in 1875.
Lacquer: a spirit based varnish used to coat and protect finishes. Mixed with iron oxides or coloring agents to create different effects.
Lalaounis: Athenian jewelry company. Known for antiquity-inspired designs.
Lalique: 1881 – present. Jewellery company founded by René Lalique.
Lampl, Walter (1895 – 1945): American jeweller, known for use of jade.
Language of Birds Birds in jewellery held a nuanced and precise meaning.
Language of Flowers (Floriography): Floral motifs used to convey secret, coded meaning. Popular in Victorian era.
Language of Stones Acrostic jewelry was a beautifully subtle and poetic way of sending a sentimental message by way of the first letter of each stone.
Lapidary: The craft of who cutting gemstones.
Lapis lazuli: a rock aggregate predominantly composed of the minerals lazurite, sodalite, nosalite and hauyne. Cobalt blue color, often with patches of pyrite (golden) and/ or calcite (white).
Larimar: (aka ‘Stefilia’s Stone). Gemstone found only in Dominican Republic, usually light or deep blue but can only be blue-green or white.
Laser: acronym for Light Amplification by Stimulated Emission of Radiation. Lasers are often used in gemstone work.
Latten: a copper alloy used in the Middle ages until the end of the 18th century.
Lavaliere: A chain from which an ornament hangs in the center
Lava Jewelry: Jewellery made from volcanic lava. Emerged during the Grand Tour era.
Lazo: Spanish word for ‘bow’ which, when used in jewellery, refers to a type of earring with a bow motif or a long, ribbon shaped brooch or bodice ornament popular in Spain in the 16th and 17th centuries.
Le Note Blanche: Term for 1930s all white jewellery. (Or possibly 1940s)
Liberty & Co: 1876 – present. English jewellery company, famous for popularizing the Arts and Crafts style.
Limoges enamel: an enamelling technique developed in Limoges in the 15th century. First dark enamel is painted on a metal surface and then translucent enamel is applied in parts.
Line bracelet: A bracelet of individual, flexible links set with gems. A tennis bracelet is a type of line bracelet.
Link: A ring which forms a chain when interlocked with other rings.
Liquid Silver: Term for polished, silver tubular beads that appear to flow like liquid silver.
Le Grand Condé: 9 carat, pink diamond owned by France.
Leontine: From the Spanish leontina. A chain used to suspend a watch, often with tassels and slides in colored gold.
Lobster Claw: a catch used for bracelets and necklaces. Often oval or pear shaped (but can be any) it has a spring mechanism to close.
Locket: A hinged, opening piece of jewellery.
Longchain: a linked chain generally more than a meter long. Popular in the 18th century.
Lorgnette: Eyeglasses, often ornate, that are used by holding them to the eyes by a handle. used from the late eighteenth century through the Art Deco period.
Lost Wax Method: A method of casting metal using a rubber mold, filled with wax to form a pattern to create a plaster mold. The plaster is then heated and the wax melts away (is “lost”)
Louis Comfort Tiffany: jewellery designer and director at Tiffany and Company 1902 – 1918. He was the son of Charles Lewis Tiffany, the founder.
Lover’s Eye: A “lover’s eye” miniature is a painted miniature of the giver’s eye, presented to a loved one. Set in rings, brooches, pendants and lockets. A fashion during the years 1790 – 1820.
Lover’s Knot: A knot jewellery motif used since Roman times. Often given as an engagement, betrothal or friendship ring.
Lozenge: A lozenge shaped diamond is one that is rhomboid (or ‘diamond’ shaped) in outline.
Luckenbooth brooches: Scottish heart shaped – or double hearts – brooches. They originate from late medieval times and were popular again during the 18th and 19th centuries.
Ludo: A 1930s honeycomb motif bracelet designed by Van Clef & Arpels.
Luigi Podio: mosaicist for Castellani, 1851-1888.
Luster: quality and quantity of light reflected from a gemstone.
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