Certificate and origin.

How the value of a color diamond arises.

With colorless diamonds, the absence of color determines value. With natural fancy color diamonds it is the other way around: the more intense and pure the color, the higher the value. Only about one in ten thousand natural diamonds shows a natural color at all, and only a fraction of those reach the intensity classified in the trade as fancy.

The GIA grades intensity in steps, from Fancy Light through Fancy and Fancy Intense to Fancy Vivid and Fancy Deep. A single step of difference already leads to considerable price differences in the market. Three factors matter: hue, saturation, and the evenness of the color distribution.

Where the colors come from.

Blue diamonds owe their color to traces of boron, yellow ones to nitrogen, and pink ones were formed under enormous pressure deep within the earth. These conditions cannot be repeated. What nature created over billions of years is finite, and that is the foundation of the value.

GIA, HRD and IGI.

A certificate from GIA, HRD, or IGI provides the objective basis for color, weight, clarity, and cut. It also records whether the color is of natural origin or was treated afterwards. For an investment this entry is decisive: a treated natural diamond follows an entirely different price logic.

We work exclusively with certificates from these three institutes. A piece without an independent laboratory certificate is not considered, however convincing it may look.

Kimberley Process and an unbroken chain.

The Kimberley Process is an international certification system intended to prevent trade in conflict diamonds. For each shipment it confirms that the goods come from conflict free production. For us this record is a condition of entry, not an addition.

Beyond that, what counts is that each stage can be traced. The shorter and clearer the documented path from mine through manufacturer to investor, the more robust the valuation and the easier a later sale.