SEDA JEWELERY

OPAL AND PERIDOTGEMSTONE RING

This is a quality made silverring ready to wear. The workmanship and polish is excellent.

Stamped 925

Size 9 x 7 mm app

Weight 1.15 cts app

RING SIZE- 9

Silver is a metallic chemical element with the chemical symbol Ag (Latin:for “grey” or “shining”). A soft, white, lustrous transition metal, it has the highest electrical conductivity of any element and the highest thermal conductivity of any metal. The metal occurs naturally in its pure, free form (native silver), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a by-product of copper, gold, lead, and zinc refining.

Jewelry and silverware are traditionally made from sterling silver (standard silver), an alloy of 92.5% silver with 7.5% copper. In the US, only an alloy consisting of at least 92.5% fine silver can be marketed as “silver” (thus frequently stamped 925). Sterling silver is harder than pure silver, and has a lower melting point (893°C) than either pure silver or pure copper.Britannia silver is an alternative hallmark-quality standard containing 95.8% silver, often used to make silver tableware and wrought plate. With the addition of germanium, the patented modified alloy Argentium Sterling Silver is formed, with improved properties including resistance to firescale.

Sterling silver jewelry is often plated with a thin coat of .999fine silver to give the item a shiny finish. This process is called “flashing”. Silver jewelry can also be plated with rhodium (for a bright, shiny look) or gold.

Silver is a constituent of almost all colored carat gold alloys and carat gold solders, giving the alloys paler color and greater hardness. White 9carat gold contains 62.5% silver and 37.5% gold, while 22carat gold contains up to 8.4% silver or 8.4% copper.