Gemologist Notes on iPhone: Stone Grading Observations, Treatment Findings & Provenance Research

Gemology is observational science applied to high-value, highly variable natural materials. Two diamonds with identical 4C grades may have very different visual performance and character. A ruby described as "unheated" commands a significant premium — and the documentation supporting that determination must be technically sound. Nemos gives gemologists a field-ready place to capture grading observations, instrument readings, and consultation notes at the loupe, at the lab, or in the field.

Why Gemologists Need Structured Notes

Gemological observations are detailed, time-sensitive, and consequential. The inclusions you observe under the microscope, the optical phenomena you document under varying illumination, the treatment indicators you find or don't find — these observations form the basis of grading reports, insurance valuations, and purchase recommendations. Without documented records, assessments depend entirely on memory, which is unreliable across a high-volume examination practice.

What to Capture in Nemos

Stone Grading Observations For each stone examined: - Species and variety (corundum/ruby, beryl/emerald, etc.) - Weight (if available) and estimated dimensions - Color description: hue, tone, saturation, distribution, zoning - Clarity: inclusion type, location, size, effect on transparency - Cut and proportion assessment - Polish and symmetry observations - Surface condition

Consistent grading observation notes create a record that's defensible and comparable across examinations.

Treatment Identification Notes Document treatment assessment: - Heating: silk condition, zoning, growth structures, fingerprints, surface features - Fracture filling: flash effect, gas bubbles, flow patterns - Beryllium diffusion (corundum): absorption spectrum notes, color concentration patterns - Clarity enhancement (diamond): fracture characteristics - Coating: surface features under oblique illumination - Conclusion: untreated / evidence of treatment / inconclusive

Treatment notes are among the most consequential in gemology. Documenting both what you observed and your reasoning protects your professional reputation.

Instrument Readings Log key instrument results: - Refractive index reading(s) and birefringence - Specific gravity measurement and method - UV fluorescence: short-wave and long-wave (color, strength, distribution) - Spectroscope observations (absorption bands, their positions) - Chelsea filter response - Polariscope and interference figure

Instrument readings provide the objective data alongside the subjective observations.

Inclusion Mapping For significant stones, create a written inclusion map: - Clock position and zone (table, crown, girdle, pavilion) - Inclusion type and orientation - Any growth structures (color zoning, twinning planes, growth lines)

Inclusion maps serve as stone fingerprints — useful for verification of returned stones and insurance claim documentation.

Provenance Research Notes For stones with claimed geographic origin: - Claimed origin and source documentation provided - Characteristic inclusions and growth features for claimed origin - Comparison to reference material - Conclusion and confidence level - Laboratory report reference if submitted

Provenance research notes document the reasoning behind origin assessments — especially important as origin premiums increase.

Client Consultation Records

After each consultation: - Stone or jewelry described - Client's purpose (purchase consideration, insurance, estate) - Key findings communicated and advice given - Any referral or follow-up recommended

Consultation notes create a professional service record that's useful for follow-up questions and disputes.

FAQ

Can I use Nemos offline at auction previews or field assessments? Yes. Full offline functionality — notes sync to iCloud when connectivity returns. Essential at auction houses or mining localities with poor signal.

How do I handle photomicrograph documentation alongside Nemos notes? Attach photomicrographs from your phone (through the microscope eyepiece or with a dedicated adapter) directly to the relevant stone note. Visual documentation of inclusions is the gold standard.

Is Nemos useful during gemological laboratory sessions? Yes — especially for capturing instrument readings, inclusion descriptions, and the reasoning behind treatment assessments as you work. Much faster than post-session reconstruction.

How do I organize notes across a large examination practice? Title notes with stone description and examination date. Tags by species, treatment status, and client type keep the practice history navigable.

What about report references — how do I link lab reports to my notes? Include the lab report number in the note body. This creates a searchable cross-reference between your observations and the formal report.

Why not just rely on the grading report? Laboratory reports document conclusions. Nemos captures the observations and reasoning that led to those conclusions — and the context around each examination that reports don't include.

Related Reading

• /blog/goldsmith-notes-iphone — jewelry fabrication and stone setting documentation
• /blog/lapidary-notes-iphone — stone cutting observation and material assessment records
• /blog/quality-control-inspector-notes-iphone — systematic inspection and measurement documentation patterns
• /blog/antique-dealer-notes-iphone — authentication and provenance research notes

Sources

• Gemological grading methodology: GIA (Gemological Institute of America) grading system documentation
• Treatment identification standards: CIBJO The Jewellery Book (Gemstones section) and AGL treatment disclosure documentation

Download Nemos free on the App Store.