SHOW: Rings 260
Title: Ring.
General: This ring is made from Sterling Silver, and is set with two
identical Lapis Lazuli stones set back to back.
Material: Sterling Silver.
Gem: Lapis Lazuli.
Method: Raised, Constructed.
Finish: Polished
Mechanics: The stones are partial Bezel set at the
narrow ends.
Designer: W.van Heeckeren.
Craftsman: W.van Heeckeren.
Availability: This Ring is currently Available.
Price: AUS $ 550.00.
STERLING SILVER is a binary Silver alloy consisting of:
925 parts/1000 Pure Silver and
75 parts/1000 Pure Copper.
Annealing temperature: 750 degrees Celsius.
Melting Temperature: 950 degrees Celsius.
Wal.
name: LAPIS LAZULI colour: Blue colour of streak: Light blue mohs hardness: 5-6 specific gravity: 2.4-2.9 cleavage: None fracture: Conchoidal, grainy crystal system: Isometric; crystals rare, mostly dense, grainy aggregate chemical composition: Na8 (Al6Si6O24)S2 sulphur containing sodium silicate transparency: Opaque refractive index: About 1.50 double refraction: None dispersion: None pleochroism: None absorption spectrum: not usable fluorescence: Strong; white
Bezel Setting is done by making a sheet metal surround (the
bezel) for the stone. Once the jewelry has been finished
the stone is then set. In setting the stone, the stone is
placed in the bezel, and the bezel is shrunk in around the
stone, by pushing it in little by little evenly around the
circumference, until the metal seals tight against the
stone. As a finishing touch a flat graver is used to bright
cut the edge of the bezel at right angles to the plane of
the bezel.
Wal.
Raising is a method of shrinking sheet metal in order to
form hollow shapes. For instance: a bowl, or a
jug may be raised from flat sheet metal in one
single piece. During the process the metal
actually thickens.
Wal.