Compare gemstone outlines with documented millimeter dimensions and name the cutting style separately. Screen scale, depth, faceting, transparency, color, and setting context mean the drawing cannot reproduce the exact stone.
A relative gemstone silhouette worksheet that separates outline, cutting style, length, width, depth, ratio, and mounting context without turning a digital drawing into identity or quality evidence.
What this guide covers
- Record the outline, cutting style, millimeter dimensions, and evidence source for each gem.
- Place shapes on one relative scale while keeping depth and visual variables visible.
- Return to the exact stone, report, photographs, and setting review before drawing any item conclusion.
Name the gemstone dimensions
Use documented measurements; leave identity, treatment, and quality fields outside an outline comparison.
- Outline shape and cutting style as separate names, plus material identity only when documented
- Length, width, depth, and ratio in millimeters with source, date, and loose or mounted state
- Transparency, color zoning, pleochroism, phenomena, and faceting notes only when evidenced
- Display calibration status, image conditions, intended setting, and questions that require direct review
Build a relative silhouette record
- 1 — Normalize the dimensions
Keep length, width, and depth in millimeters and do not derive missing values from weight or a photograph.
- 2 — Draw only the outline
Compare silhouettes on one labeled relative scale without simulating facets, color, brilliance, or setting fit.
- 3 — Attach the open variables
Carry depth, cut, image, identity, treatment, condition, and mounting questions beside the drawing.
What a silhouette can and cannot show
Outline
- Working result: Relative length-to-width shape
- Boundary: Not a complete cutting-style or quality view
Scale
- Working result: Shared digital comparison basis
- Boundary: Not guaranteed physical size or color
Stone record
- Working result: Documented dimensions plus unresolved fields
- Boundary: No identity, treatment, fit, grade, or value result
The gemstone itself remains the source
Scope and disclosure · evidence version 2026-07-19
This local page does not accept dimensions, render a calibrated stone, inspect or identify a gem, reproduce color or brilliance, grade cut, infer weight or value, test setting compatibility, save a comparison, fetch inventory, or recommend a product. It is a relative educational worksheet only.