Ass #7- Key Terms and Concepts

What is the critical angle of diamond?

How is dispersion in materials measured?

What does a diamond's brightness relate to?

What phenomenon do diamond professionals refer to as 'fire'?

How can cutting affect a diamond's color appearance?

What does the GIA Cut Grading System evaluate?

Which type of lighting is most effective for evaluating a diamond's pattern?

What effect does increased absorption have on colored diamonds?

Which factor does NOT influence a diamond's appearance?

What is associated with a diamond's small critical angle?

What does the term 'adamantine' refer to regarding a material?

Which statement about the angle of incidence is correct?

What does 'optical density' indicate about a material?

What occurs at the critical angle during light transmission?

How does light behave when it travels from a less refractive material to a more refractive material?

What is 'dispersion' in the context of light?

What does the term 'symmetry' refer to in gemology?

What is indicated by the fact that the refractive index (RI) of air is assumed to be 1?

What does the term 'path length' refer to in relation to a light ray?

How does the refractive index affect the critical angle of materials?

What does a small critical angle in diamond primarily limit?

What is characteristic of the display of dispersion in diamonds, known as 'fire'?

Which aspect is NOT a component of the GIA Cut Grading System?

What effect does longer light travel distance in a gemstone typically have?

In what situation is diffused fluorescent lighting most beneficial?

Which of the following accurately describes the role of cutting in diamonds?

What could cause colored diamonds to appear lighter in color?

What primarily influences a diamond's brightness as perceived by an observer?

Which of the following can affect the appearance of a diamond significantly?

What effect does the optical density of a material have on the speed of light traveling through it?

Which phenomenon occurs at the critical angle during light transmission?

What effect does an increase in the angle of incidence have on the angle of reflection?

How does light behave when it transitions from a more refractive material to a less refractive material?

What does the term 'reflection' specifically refer to in the context of light?

Which factor is associated with a lower critical angle in a material?

What defines the angle of refraction when light enters a new medium?

What does the term 'pattern' refer to when evaluating a gemstone?

What is the significance of a material’s refractive index (RI) being higher than 1?

What is indicated by the term 'luster' in a material?

The angle at which light returns from a surface or boundary, measured between the normal and the reflected light is ?

The angle at which light hits a surface or boundary, measured between the normal and the incident light is ?

An imaginary line perpendicular to the surface of a boundary is ?

The overall condition of the facet surfaces of a finished diamond is ?

The change in speed and possible change in direction of light as it travels from one material to another is ?

Each cut grade includes a range of .......

A diamond’s face-up pattern reveals nearly all .....

The GIA Cut Grading System applies to round brilliant diamonds in all....