Young Buddhist Monks

Any question about your report? Talk to one of our gemologist.

Bellerophon nomenclature complies with the internationally accepted standard. In a quest for transparency and clarity, we disclose any enhancement found at the time of examination.

 

A gemstone can be subject to multiple enhancements and are not limited to the one below.

Enhancement detection is done with the excellency applied in all our task.

 

Our laboratories are equipped with state-of-the-art equipment, research facility and a complete reference collections of all enhancements coupled with professional gemmologists.

Enhancement Disclosure.

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Ruby & Sapphire

-No indications of heating-

No present alterations of internal features and gemmological properties. 

(Such as infrared and/or photo-luminescence spectrum). 

-Indications of heating / TE-

Thermal Enhancement: indications of heating.

Colour improved by heat only. 

-Indications of heating + TE1/2/3/4/5- 

Thermal Enhancement: indications of heating with residue in fissures.

Clarity improved by heat.

-Indications of heating + TE (Be/Ti/Cr)-

-TE - Beryllium diffusion

Enhanced by heat with the diffusion of foreign material to modify colour:

Beryllium/Titanium/Chromium

-F1/2/3- 

Filling: Indications of clarity modification.

Followed by identification of filler present:

-Oil

-Resin

-Lead / Silica glass

Colour stability:

-Colour stable

-Colour unstable: Colour will fade.

-Tenebrescence (reversible photochromism): the ability of minerals to change colour when exposed to light. The effect can be repeated indefinitely,

Emerald

 

-No indications of clarity modification-

No present fissures filling and alteration of gemmological properties. (Such as infrared and/or Raman spectrum).

-Insignificant amount of oil-

Insignificant amount of oil in fissures.

 

Quantification & identification of filler 

-Minor amount of clarity modification-

-Minor amount of oil-

-Minor amount of resin-

-Moderate amount of clarity modification-

-Moderate amount of oil-

-Moderate amount of resin-

-Significant amount of clarity modification-

-Significant amount of oil-

-Significant amount of resin-

*Dry filler residues and fat contamination from human handling (and/or any insignificant amount of filler that does not enhance the clarity) will not be considered an enhancement.

Oil: any greasy substance that is liquid at room temperature and insoluble in water.

Resin: any natural or synthetic organic compound consisting of a noncrystalline or viscous liquid substance.

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Spinel

-No indications of any treatment-

No present alterations of internal features and gemmological properties. 

(Such as infrared and/or photo-luminescence spectrum). 

-Indications of heating / TE-

Thermal Enhancement: indications of heating.

Colour improved by heat only. 

-Indications of heating + TE (Co)-

Enhanced by heat with diffusion of foreign material to modify colour:

Cobalt

-F1/2/3-

Filling: Indications of clarity modification.

Followed by identification of filler present:

-Oil

-Resin

Jade

Jade is a trade name that encompasses jadeite and nephrite only.

-No indications of impregnation / Type A-

Any Jadeite Jade, that does not show indications of having undergone modification through the impregnation with colorless or near colorless wax, resin or any other agents.

-Indication of impregnation / Type B-

Any Jadeite Jade, that shows indications of having undergone modification through bleaching and the impregnation with colorless or near colorless wax, resin or any other agents.

-Type C-

Any Jadeite Jade, that shows indications of having undergone modification through fissures filled with colored agents (Dyed)

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Not enough? Take a look at these websites.
2021-09-10 21_27_52-Introduction to the Blue Books – CIBJO – The World Jewellery Confedera
CIBJO.
The CIBJO Blue Books are definitive sets of grading standards and nomenclature for diamonds, coloured gemstones, pearls, coral, precious metals and gemmological laboratories, and also responsible sourcing practices.
2021-09-10 21_28_08-The Laboratory Manual Harmonisation Committee (LMHC).png
LMHC.
The LMHC draws on the individual experiences of its members for the purpose of creating a general philosophy for proper nomenclature and disclosure for laboratories as well as to initiate and suggest "preferable" language to be used in the trade.