Articles

Doctored Synthetic Sapphire

Prima facie glance can be futile, a stone having coarse skin surface with mother rock attached gives the appearance of a perfect mined crystal.

Download

Swindling with Gemmological Reports

Swindling is not new for the field of Gemstones and Jewellery. Treatments on gemstones are usually done for enhancing their colour, clarity and beauty, ultimately to get their price hike. 

Download

Synthetic Moissanite with Hexagonal Negative Cavities

Synthetic Moissanite (Silicon Carbide) a well-known substitute of Diamond. But easily differentiable from Diamond with its strong doubling and fine sub-parallel stringers oriented parallel to its optic axis direction.

Download

Sapphire Doublet

Several types of assembled stones are formed with motive to create a bigger stone, by combining smaller stones together, in less of price to fetch more of money.

Download

Change in Emerald's reaction under Chelsea Filter with the change of Illumination

Study of chelsea filter reaction under different illuminations of an Emerald, hosting other Emerald Crystal.

Download

Hoax Diamond

Topaz doctored rough was beautifully polished depicting striations parallel to octahedron edges and were made as in to show Trigons, natural growth markings present on diamond octahedron crystals.

Download

Spurious Diamond

Spurious diamonds, which are not actually diamond but are rather some other natural or synthetic stone, are getting frequent to encounter. Such stones are cut in Octahedral shape, to look like Natural Diamond Rough.

Download

Prasiolite with inclusion influenced by Brazil-Law Twinning

Prasiolite displaying prominent Brazil-law twinning, with very sharp twinning planes when the sample was observed parallel to the optic axis between crossed polarizing filters.

Download

Phosphorescence in Synthetic Sapphire

Colourless synthetic sapphire concluded synthetic on the basis of curved growth banding in Diamond view instrument with unusual phosphorescence.

Download

It's Like Thousand Bubbles Bursting Inside a sapphire.

One of the frequent inclusion to see in sapphire is phase inclusion, which is not as such surprising to talk about. Although, this phase inclusion must have surprised Sir David Brewster, in 1823, when it was first time encountered.

Download YouTube Link