SHOW: Necklaces 34
Title: Necklace. General: This necklace is constructed fromn 18K Gold and set with a Baguette Diamond, the chain is constructed from 18K Gold. Material: 18K Gold. Gem: Diamond. Method: Flame textured, Constructed. Finish: Polished. Mechanics: The catch is a ball and slot type. Designer: Walraven van Heeckeren. Craftsman: Walraven van Heeckeren. Price: AUS $ 11000.00.
18K GOLD is a ternary Gold alloy consisting of: 750 parts/1000 Pure Gold. 125 parts/1000 Pure Silver. 125 parts/1000 Pure Copper. Annealing temperature: 750 degrees Celsius. Melting Temperature: 950 degrees Celsius. Wal.
name: DIAMOND colour: Colorless, yellow, brown, sometimes green, blue, reddish, black colour of streak: None possible mohs hardness: 10 specific gravity: 3.47 - 3.55 cleavage: Perfect fracture: Conchoidal to splintery. crystal system: Isometeric ( cubic ); mainly octahedrons, also rhombic dodecahedrons, cubes, twins, plates. chemical composition: C, crystalised carbon. transparency: Transparent. refractive index: 2.417 - 2.419 double refraction: None, often anomalous. dispersion: 0.044 pleochroism: None. absorption spectrum: Colorless to yellow: 4780, 4650, 4510, 4350, 4015, 4230, 4155, 3900 Blue-green: ( 5370 ), 5040, ( 4980 ) fluorescence: Variable; Colorless and yellow: mostly blue. Brown and green: often green.
Flame Texturing is done by putting the sheet metal on a flat fire resistant surface, and heating the metal until the surface begins to melt. By using various types of flame, (reducing or oxydising or combinations thereof) various surface textures can be achieved. in recent times this is sometimes referred to as reticulation. Wal.