demantoid in iran

Iran rough demantoids with symmetrical cubic shape

Demantoid is a type of garnet and belongs to the andradite family. A gemstone that has not even passed two centuries since its discovery.

Green gemstone with very special and unique features

It has a refractive index of 1.88, which is considered a high refractive index and creates high brilliance.

Dispersion (fire) higher than diamond with a value of 0.057 is another characteristic of this precious gemstone.

light green to vivid green, which is one of the three main colors (RGB) and is considered valuable in colored gemstones.

A stone that does not have Pleochroism (two-color phenomenon based on the C axis) and has single refraction (SR).

The structure of the rough is cubic, that is, in the best case, it has 12 rhomboid faces with a very beautiful structure, and these angular shapes are usually much more in small roughs, and roughs above 2 carats are usually round in shape

persain demantoid with visible horsetail from the yaghoobigem collection

One of the most beautiful and unique features of demantoid is having a very special and beautiful inclusion called horsetail (horsetail-like) in it, which contributes to the originality of this precious gem and creates a collectible and expensive feature in certain cases.

persian demantoids with different characteristics from yaghoobigem collection

All the mentioned features are part of persian demantoids. The extremely high color variation in persian demantoids is very remarkable.

I have personally cut a large number of Iran’s demantoids, related to most of Kerman mines, and I have never seen so many color variations in one type of gemstone.

Not only have I seen and cut many different colors from vivid green to medium green, yellowish green, greenish yellow, rich chrome green, brownish green, vivid dark green, olive and countless other colors,

But I have also seen many different features, such as horsetail inclusions in the shape and different types of Dandelion shaped, V-shaped in the corner, scattered with low density, single, detached and clustered horsetail with different colors.

And also the feature of color change with color change in both fluorescent light and daylight

And also color zoning with various color densities and without color zoning

and with dispersion and without dispersion and the weight of roughs above 30 and 40 carats

All these features and even other things are incredibly found in persian demantoids.

Therefore, we can confidently name the most diverse demantoids in the world in Iran, which even in certain cases (in terms of color and clarity) is considered one of the best demantoids in the world.