Education

Proportions Do Affect Value (12.08)

The proportions of a diamond have a great affect on the value of a diamond.

Accurate Grading in a Mounting (13.01)

The only way to grade a diamond accurately is loose.

Reflections (13.02)

Tilt the diamond ring to differentiate prong reflection from an inclusion.

Covered Inclusions are Common (13.03)

Hiding a diamond inclusion under a prong is common practice for a setter.

Dark Field Illumination (13.04)

Locating inclusions in the diamond with a gem microscope's darkfield illumination makes it much easier.

Look for Hidden Inclusions (13.05)

Carefully look for hidden inclusions in mounted diamonds under prongs or bezels.