Color Stone Grader
Job Summary
WE ARE HIRING Color Stone Grader
We are hiring an experienced Color Stone Grader to evaluate and grade colored gemstones based on color clarity cut carat weight transparency origin characteristics and overall quality.
- Inspect and grade colored gemstones according to established quality standards
- Evaluate color hue tone saturation clarity cut polish symmetry and transparency
- Identify gemstones such as Ruby Sapphire Emerald Amethyst Topaz Tourmaline Garnet Tanzanite and Aquamarine
- Detect visible inclusions fractures treatments and other quality characteristics
- Identify signs of heat treatment filling dyeing irradiation diffusion and other enhancements
- Assess gemstones under appropriate lighting and magnification
- Sort and categorize stones based on quality size color and commercial value
- Maintain accurate grading records and documentation
- Coordinate with Production Quality Control Purchase and Sales teams
- Ensure grading consistency and adherence to company quality standards
- Handle gemstones carefully and follow proper security procedures
Required Skills:
Strong knowledge of colored gemstones and their characteristics Experience in colored stone grading / gemstone sorting Good visual observation and color differentiation skills Knowledge of gemstone treatments imitations and synthetics Familiarity with loupe microscope refractometer polariscope and dichroscope Strong attention to detail and accuracy Ability to perform repetitive grading and sorting tasks Good communication and documentation skills