Engraved case

Handmade technique By Litinvs.


Engraving creates shining, swooping lines and a play of light and shadows, inspired art inscribed on a tiny, resistant metal canvas. In addition to artistic flair, it requires infinite dexterity to accomplish.
Before any engraving can begin, Litinvs uses a pencil to sketch his subject and all the complex motifs in its pattern. Once satisfied with the design, takes up a burin (the engraver’s slender chisel to make a fine line).

HANDMADE ENGRAVED CASE PROCESS.

This tool can be pointed, squared off or rounded, but it’s always sharp. It penetrates the material, tracing a line or a curve with furrows of varying depth. And so the engraver transfers his detailed guiding lines to the waiting surface.
The burin, almost a paintbrush, is held in one hand while the other moves the engraver’s ball, a spherical stand that rotates the piece for the best working position. Making the body that will hold the portrait jewel, and crafting the case that will keep it in place, are as important at Litinvs as the gemstone itself.
Crafting a case is extremely intricate work performing around 50 operations. Creating a metal case also requires a multitude of complex processes.

The three engraving techniques:

  • Line-engraving or intaglio: fine lines made with a burin.
  • Relief, also called “pounced ornament”: a trompe l’oeil style of modeling in the manner of bas-relief, created using a graver, where background material is removed to leave a raised, lighter-looking area.
  • Champlevé: refers to a hollow, made with a flat graver, in the surface of a metal plate to receive enamel diamonds setting.
ENGRAVED CASE MASSIVE PRECIOUS METAL THICKNESS 1.5mm, RELIEF THICKNESS 1mm.

Styles of polishing include Mirror polish: imparts an unusual dual effect of steely reflectiveness or deep matt black, depending on the play of light Smooth satin brushing: a grinding head fitted on a tiny motor and coated in fine emery paste produces a slightly frosted effect.


ENGRAVED CASE HANDMADE POLISHING PROCESS.

Polishing at Litinvs is done by hand, as it always has been, and is called “free floating,” or “float polishing.” This ultrafine technique is done without pressure, and is particularly difficult, but it produces a super-smooth, damage-free surface. The polisher uses a series of different-sized brushes disks of fabric, felt or hair, depending on the desired effect, each coated in a gently abrasive paste. Polishing is careful, time-intensive work. A gold case, for example, would take on average an hour and a half to polish, a silver double enclosed up to two hours, and a fine platinum case four hours.

Also called a black polish, or poli noir, a name it gets from the black or gray shine (depending on the angle at which it’s seen) the finished component radiates. This is a stunning finish and, is often found in high jewellery. To achieve that luminous sheen, only possible on precious metal, the part is gently rubbed in a circular motion on a zinc plate coated with diamond paste, beginning with a coarser grain paste and moving to a fine one. The highest level of polish achievable, it leaves no visible markings on the surface, even under high magnification. The final surface reflects only in one direction, so will appear either to absorb all light and be bottomless ebony, or give off a lucent glow.

The humble art of polishing is one of the most important finishing techniques. It accentuates the case shape, highlighting each distinct part and visually bringing together gemsetting, guilloché work, and engraving into a shining, unified whole. Regardless of the intensity of the deburring and polishing operations, the form and aspect of all parts, gemstone, interior mount and exterior elements must be preserved, in compliance with the Litinvs Seal.

ENGRAVED GEMSTONE PORTRAIT FINE POLISHED AT 6:20 SECONDS.

The polishing process is done as well in antiquity by a piece of polishing gum with fine 100% cotton bunch of thin threads. The fine polishing process into each metal engraved hair line without damage/erase the jewel design, polishing procedure esteemed 2-3 hours by two different gums. Litinvs continou the portrait engraved gemstone jewels tradition. Whether in terms of the workmanship or the external elements, the technique is only handmade without modern polishing gums. Used only 18th century tools and ancient equipment.


SEVERAL ENGRAVED CASE INCLUDED INVENTION ILLUMINATED EYES.






Gemsetting

Exquisite Advantage By Litinvs.





Any gem ch
osen for use in a Litinvs case – diamond, ruby, sapphire, emerald – will be the very finest of its kind, and comply with the Litinvs certificate of warranty. At Litinvs, only the top D to G color range is used.

The clarity of the diamonds is always of the desirable internally flawless grade (known as IF), and exhibits an immaculate cut. The precision of the cut is also vital in ensuring a regular and even setting.

Our task of the gemsetting is to place it perfectly, so that it shows to exquisite advantage and is of course secure.
https://sites.google.com/site/portraitcameosite/engraved-case/Gemsetting%20by%20Litinvs%208%20pix.jpg


DIAMOND SETTING INTO WHITE GOLD SECURE ENCLOSED MOUNT WITH INTERIOR TIN (Sn) BRIGHT & WATER RESISTANCE HOLDING.

Gemsetting is done continously with several handtools at Litinvs used traditional hammering technique to set gemstones into secure mount with highest reflection & water resistance without interior oxidation mount surface, at Litinvs setting with tin interior allow gemstone light reflection for thousand years because tin surface does not oxidate into mount setting.
  • At 1st pic it is pointed/hammered metal surface round space to set the diamond
  • soldered surround a gilt (pic 2)
  • hammering inside hole with tin Sn (pic 3)
  • a fine tool trigonal design point tin & hammering in order to create a negative trigonal shape into tin surface (pic 4)
  • installization of diamond into tin surface (pic 5)
  • pressing diamond with a wooden/copper tool while cut away tin metal under pressure, diamond is hammering fixed position into the metal space, precision fit diamond surrounded by tin mount (pic 6)
  • with a bronze tool round edge hammering metal surface to close mount & secure gemstone. (pic 7-8)
https://sites.google.com/site/portraitcameosite/engraved-case/Hand%20gemsetting.jpg

Litinvs gems are set in the time-honored way – by hand & handtools traditional, never bonded with adhesive. The setter positions each precious stone in its mount - water resistance interior tin (Sn) that surrounds stone presicion. Gems must be placed level, pointing in the same direction and all at the same height.

Precision and regard for the shape and character of the gem is vital to bring out its beauty and achieve the brightest radiance and luster.

When setting massive enclosed mount with diamond into gemstone surface Litinvs follows an ancient formula to set the metal appliance into stone with mechanical & chemical properties.

https://sites.google.com/site/portraitcameosite/engraved-case/Gemsetting%20into%20gemstone%20surface.jpg

WHITE GOLD ENCLOSED MOUNT WITH DIAMOND, SETTING WITH CHRYSOCOLLA GLUE INTO GEMSTONE SURFACE.

The massive metal mount setted deeply into gemstone surface with skin glue which have been compressed into bronze vessel with chrysocolla stone which produce a thin film without prevent oxidation during thousand years. Litinvs warranty superior durability of gem setting water resistance surface. Our task of the gemsetting is to place it perfectly and secure, without expire date. The same method was used in the Golden age of Pericles. (Hellenic Institute of Classical Art & British School of Archaiology in Athens)

https://sites.google.com/site/portraitcameosite/engraved-case/Litinvs%20case%20gemsetting%20with%20diamonds.jpg?attredirects=0

SEVERAL GEMSETTING INTO METAL MOUNT AND GEMSTONE SURFACE.