Ass #19-Diamond Tools and Instrumentation

A diamond trade professional, often a dealer or manufacturer, with extensive knowledge and experience.

Folded parcel papers used to hold and protect single diamonds, matched suites, and parcels. Include information like size, weight, and cost.

Essential tools for handling and picking up small diamonds. Medium pointy tweezers are ideal.

A small, thin metal shovel used for handling and moving parcels of small diamonds.

A pad of heavy white paper used to lay out and sort parcels of diamonds.

A small plastic tray with grooves for different diamond sizes used to match and compare gems to create stone sets.

Tool used to measure diamond dimensions, particularly the diameter of the girdle, to the nearest 0.01 mm.

The preferred light source for evaluating diamond color.

Measures a diamond's absorption of ultraviolet, visible, and near-infrared light.

Precise instrument measuring light absorption at specific wavelengths.

Cooling a diamond to -196°C (liquid nitrogen) to sharpen spectral peaks.

UV-Vis-NIR spectroscopy helps determine the color centers causing diamond color.

Measures infrared energy absorbed by a diamond, offering rapid results.

Infrared spectroscopy is needed to precisely determine a diamond's type.

Diamond type is determined by the presence and state of boron/nitrogen in the spectrum.

An instrument revealing a diamond's absorption spectrum, but less sensitive than a spectrometer.

A visual representation of a substance's absorption of light at various wavelengths.

Advanced instruments help determine diamond's nature, color origin, and type.

A set of diamond holders and plates with varying hole sizes used to sort diamonds.

Adjusting a scale to accurately measure diamond weight using a reference weight.

Stable conditions for accurate weighing, avoiding drafts, vibrations, and heat.

Comparing the face-up color of diamonds against a neutral background.

Ensuring table sizes and reflection patterns are consistent between diamonds.

Considering clarity characteristics when matching large diamonds in the "I" clarity range.

Ensuring that smaller diamonds are the same size and have similar girdle diameters, when matching.

Selecting a center stone first to match with accent stones.

Measure stone depth of unmounted or back-holed stones.

A technique that measures light emitted by diamonds to identify defects and trace concentrations.

A method that maps the photoluminescence across a diamond's surface to reveal differences in defect concentrations.

A method used to distinguish natural and lab-grown diamonds.Uses ultra-shortwave UV to observe fluorescence patterns.

Lab-grown diamonds often have different fluorescence patterns than natural diamonds, aiding identification. Many show blue fluorescence.

A microscope that uses ultra-shortwave UV light to differentiate natural from HPHT lab-grown diamonds based on fluorescence patterns from a diamond's near-surface region.