Design

Setting. 

 Double Prong Claw

This settings consist of paired

single claw prongs and are used

most commonly on shapes with

rounded or cut corners, like radiant

cut, emerald cut, and cushion cut

diamonds.

Basket

A basket setting is a type of prong

setting where four or six prongs

rise up from the base of the metal

band for the stone to sit in, but then

more horizontal prongs are added

to create a 'b asket' shape.

Claws or Prongs

This setting could have 4,6 or more

prongs that extend up from the

ring's basket and over the

gemstone.

V-Prong

As the name suggests, this setting

shaped like the letter V. grip the

stone at its sharp ends and hold it

along the edges, from top to

bottom.

Bezel

A bezel setting is one where the

diamond is surrounded by a metal

rim rather than clutched by the four

or six prongs evident in the popular

claw setting.

Half Bezel

A partial bezel or half bezel with a

pavé band, leaves the sides of the

bezel open, allowing more light to

enter the diamond from the sides

stone to sit in, but then more

horizontal prongs are added to

create a basket' shape.

Tension and Bar

Tension

This setting uses compression ito

hold a center diamond or gemstone

in place.

Bar or Channel

In this setting, the stone is held in

position by two long, thin vertical

bars carefully placed on either side

of the stone.

Cathedral

This setting features a center stone

flanked by metal arches that mimic

a cathedral building to hold it in place. 

Cluster

In this setting, the center stone is

surrounded with several smaller

diamonds clustered together,

making it appear as one large

diamond.

Perspective :-

Perspective drawing is a technique to create the linear illusion of depth. As objects get further away from the viewer they appear to decrease in size at a constant rate. The box in the sketch below appears solid and three dimensional due to the use of perspective

All vanishing lines lead to a central point. The horizontal and vertical lines, however, remain parallel to each other, it has one vanishing point. 

In the two-point perspective, also known as the corner perspective, there are two vanishing points along the horizon line.

Three Point Perspective is the most complex form of perspective drawing. Three point perspective uses three sets of orthogonal lines and three vanishing points to draw each object.

Decorative Techniques. 

 embossing 

filigree

 Enamelling 

granulation

 engraving 

piercing 

texture 

acid etching

Embossing very commonly found in Ancient jewelry and coins. embossing is basically conjugation of repousse  and chasing. design on the front by sinking of the metal embossing is a technique that a 3D image on a paper. 

Filigree one of the most fascinating Jewellery making technique still in use today filigree involves twisting thin metal treads  into interact lack like pattern. 

Enameling in a simple terms in a enameling involves a glass plate being applied to metal and then heated to fuse it to the surface

Granulation in jewellery type of decoration in which minute grain or tiny balls of gold are applied to a surface in a geometric or linear pattern or must to fill in parts of decoration granulation is also called as rawa work in India. 

Engraving in traditional engraving which are rarely linear medium the important of halftone was created by making many very thin Parallel Lines a technique called engraving

Piercing 

This technique basically involves the use of a Piercing saw or jewellers saw and a blade to create negative and positive design.

Traditionally done with saw, this technique has advanced wherein Laser cutting machines have come to create intricate design.

Acid Etching:

Acid Etching on metal uses chemical reaction to selectively remove metal and create a depression.The idea is to cover parts of a metal( according to design) with an acid￾proof paint then submerge the piece in acid.

The caustic liquid eats away at exposed areas to create a relief

Technical drawings comprise of two-dimensional orthographic drawings and include three dimensional Isometric Projections.

Orthographic projection, a common method of representing three-dimensional objects, usually by 3two-dimensional drawings in which each of the object is viewed along parallel lines that are perpendicular to the plane of the drawing.

Primary Colours: Red, yellow and Blue, In traditional colour theory (used in paint and pigments), primary colours arethe 3 pigment colours that cannot be mixed or formed by any combination ofother colours. All other colours are derived from these 3 hues.

Secondary Colours: Green, orange and purple

These are the colours formed by mixing the primary colours.

Tertiary Colours: Yellow-orange, red-orange, red-purple, blue-purple, blue￾green & yellow-green

These are the colours formed by mixing a primary and a secondary colour.That's why the hue is a two-word name, such as blue-green, red-violet, andyellow-orange.

TINTS

A Tint is sometimes also called a Pastel. But to be precise, Colour Theory defines a True Tint as any Hue or mixture of pure colours with only White added. 

TONES

Colour Theory defines a True Tone as any Hue or mixture of pure colours with only Gray added. To be precise, this definition considers Gray as truly neutral. In other words, there are no additional pigments in the Gray other than White and Black

SHADE

Color Theory defines a True Shade as any pure Hue or mixture of pure colors 

with only Black added. In other words, it contains absolutely no White or Gray

Types of Shading:

1. Cross hatching

2. Smooth pencil shading

3. Stippling pencil shading

4. Circulism pencil shading

5. Contour Shading