Key Points to Ponder in Purchasing Gemstone Jewelry

Agilis Tech

Thursday 26, 2020

Diamonds may be a girl`s best friend, but those in the know recognize the ineffable beauty of a perfectly displayed gem of color. But in the absence of a professional eye, how might a buyer ensure value for money expended? In today`s market, here are the key points to consider in determining gem value.

Arguably, Color is paramount in an evaluation, particularly since many consider this to account for 60% of the value of a gem. Thus, one should consider the following factors:

1) Hue, which reveals the range of visible colors within the gem.
2)Tone, which simply defines lightness and darkness throughout the stone matrix,
3) Saturation, which defines the intensity or richness of the hue, and
4) Uniformity of the color.

Certainly, the more experience one has in viewing stones, the greater the ability one will have to evaluate the above points.

Another consideration in determining gem value is the country of origin. Remarkably this can supersede the pricing impact of shape, cut, and even size. Generally, origin can account for 15% of the value. An example of such pricing differential would be in valuing an untreated sapphire of intense blue color from Kashmir versus a similar stone from another locale. In some cases, the impact might exceed 15%.

The cut of a stone most often – but not always – is determined by the stone type. Opals are more suited to a round non-faceted surface while Sapphires are usually faceted. There are a variety of factors defining impact of cut on quality and price for any given stone. The style of cut and even the craftsman making the cut each have impact on the pricing point.

And of course,clarity of a gem translates to added value. Gems are cut to sparkle and display color. But if there are flaws – and there almost always are – that sparkle is interrupted. Thus,a value curve exists for each gem type related to clarity. Again, almost always, gems will display inclusions, whether eye-clean, i.e., invisible without magnification. But oddly enough, some inclusions actually are beneficial by virtue of the light-scattering that takes place. For example, in Kashmir sapphires, this results in a value enhancing so-called, velvety effect.

This is but an outline of the value-factors associated with fine gems and only begins to reflect the level of study required to achieve the GIA and foreign qualifications held by the Gemjunky staff.

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