Glossary of Terms
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the iridescent shell interior found in several types of marine species, often referred to as Mother of Pearl.
a synthetic polymer sometimes used as accent material in jewelry.
a type of quartz found in a variety of colors and patterns. A child’s marble. Agate was highly valued in ancient times as it was said to quench thirst and protect from fevers.
the Japanese name of the Pinctada fucata martensi mollusk. Japan and China both produce saltwater cultured Akoya pearls. They are typically round or semi-round and average 6 to 8 millimeters. Akoya pearls are widely available and consumers hold them in high regard.
a stone that changes color as the source of light changes, green in the daylight to red in incandescent light. It is often referred to as "emerald by day, ruby by night".
combination of two or more metals. Combining metals is necessary to make metal more durable, malleable and affordable. For example, pure gold, known as 24 karat gold, is too soft to be used as a jewelry material. Alloying gold with silver, copper, zinc or other metals strengthens the metal and can cause it to appear white, yellow or rose color.
a semi-opaque, blue-green gemstone variety of green microcline. It is named after the Amazon River in Brazil, yet no deposits have been found there.
translucent fossilized tree resin (sap). Ranging in color from golden yellow to reddish brown and occasionally includes trapped insects or leaves.
Amethyst (February Birthstone)
the birthstone for February - a transparent purple quartz. Leonardo Da Vinci wrote that amethyst was able to dissipate evil thoughts and quicken the intelligence.
a watch that displays the time using hour and minute hands.
a ring with a continuous row of stones set shoulder to shoulder. The diamonds may go half-way, three-quarters or completely around the finger.
the process of making an object resemble an antique by artificial means.
an ornamental piece, created separately, then applied to a piece of jewelry.
Aquamarine (March Birthstone)
the birthstone for March, a blue or greenish-blue gemstone belonging to the beryl family (which also includes emerald).
"The Water Bearer"
Astrological sign for January 21st through February 19th.
Astrological element: Air
Astrological sign for March 21st through April 20th.
Astrological element: Fire
a square type step-cut with cropped corners displaying an octagonal outline. Joseph Asscher, an eminent diamond cutter from Amsterdam developed and patented the cut in the early twentieth century.
refers to a watch with a mechanical movement, as opposed to a watch featuring a quartz or electrical movement. The mainspring of this watch is wound automatically as a result of natural motion of the wearers arm, rather than having to turn the winding stem. If an automatic watch is not worn for a day or two, it will wind down and need to be wound by hand in order to get it started again.
a form of quartz, characterized by its translucency. The most common color of aventurine is green, but it may also be orange, brown, yellow, blue, or gray.