Rudraksh identification

Disclosure of Treatment in Gemstone and Diamond.

Bleaching:  A chemical used to alter / reduce a component of, or the entire color, of a porous gem. Some gemstones are bleached and then dyed, a form of “combination treatment.”

Surface Coating: Altering a gem’s appearance by applying a coloring agent like paint to the back surfaces of gems (a treatment known as “backing”), or paint applied as a coating to all or a portion of a gemstone’s surface with the effect of altering the color.

Dyeing:  introducing colored dyes into porous or fractured gems to change their color. Such fractures are sometimes purposely induced by heating the gem so that an otherwise non-porous material can more readily accept the dye.

Fracture filling:  filling surface-reaching fractures or cavities with a glass, resin, wax or oil to conceal their visibility and to improve the apparent clarity of gem materials, appearance, stability, or in extreme cases—to add to a slight amount of weight to a gem. The filling materials vary from being solids (a glass) to liquids (oils), and in most cases, they are colorless (colored filler materials could be classified as dyes).

Cavity filling: cavity filling with a glass oil to conceal their visibility and to improve the apparent clarity of gem materials, appearance, stability.

Heat treatment:  the exposure of a gem to high temperatures for the purpose of altering its color and/or clarity.

High pressure high temperature (HPHT): Heating a diamond to high temperatures under high confining pressures to remove, or change its color.

Impregnation:  The surface of a porous gemstone is permeated with a polymer, wax or plastic to give it greater durability and improve its appearance.

Irradiation: exposure of a gem to an artificial source of radiation to change its color. This is sometimes followed by a heat treatment to further modify the color. This second step also known as a “combination treatment

Laser drilling: this involves using a narrow focused beam of laser light to burn an open channel from the surface of a diamond to reach dark inclusions. This is generally followed by the use of a chemical forced into the channel to dissolve or alter the appearance of the inclusion.

Diamonds are the only gemstones to be treated in this fashion, in part because only they can withstand the heat of a laser.

Surface diffusin: the penetration of certain elements into the atomic lattice of a gemstone during heat treatment, with the objective of changing or accentuating its color.

Coating: This treatment is achieved by applying a thin film to the surface of a gem partially or completely in order to modify the color, luster or brilliance. Recent coatings are designed individually for different gem species and provide more than improvement of color. Most commonly coated gem materials are quartz, beryl and topaz, which display quite obvious color modifications and unnatural iridescence.

Glass Filling: the fissures and cavaties of sapphire and ruby are filled with high lead glass along with high temperature to improve their colour and clarity.

HTGF: indication of heating and pressure of high glass along the fissures and cavities that show colour flash.

CE in (Emerald) : The filling of cavities with colourless oil, resin to improve the clarity . the pressure of resin shows colour flashes along the fissures.

Beryllium Diffusion Treatment: Beryllium treatment is a form of heat treatment, mainly for sapphire, that adds the element beryllium to the heating process. Beryllium is a well-known element in the gem world, since it is an essential constituent of many gemstones, including emerald, beryl, aquamarine and chrysoberyl