Two categories of stone cover most of what a jewellery designer draws after the centrepiece: cabochons and melée. One is the oldest cut in the trade; the other is the smallest. Both have drawing rules of their own, and knowing them keeps a design board credible long before it reaches the bench.
Cabochons: the oldest cutting style
A cabochon is a facet-less cut: a polished dome with a defined outline and no faceting. It is the most traditional and still the most common way to cut coloured gems, and many softer gem types — especially translucent and opaque varieties — are cut only as cabochons. Jade, agate and amber are classic cabochon materials; patterned or unusually featured stones also suit the cut because the dome displays them without faceted interference.
Sapphire and ruby can be cut en cabochon too, but with a caveat worth knowing at the design stage: they are always more valuable faceted, so typically only the lower-clarity grades are selected for cabochon cutting. A design built around a fine sapphire cab is drawing something the market rarely supplies.
Outlines
Round and oval are the traditional outlines. Teardrop and boat (marquise) shapes are popular fancy options, and freeform cabochons exist for one-off designs. Drawing a cabochon is the easiest gem to draw: it needs only the outline of its shape — no facet lines at all.
Profiles: height and belly
The dome can be high, medium or low. Most cabochons have a flat back; some carry a small "belly" underneath, and a large belly matters twice over: it is harder to set, and it retains extra weight that inflates the price of the stone. A double cab (domed on both sides), buff-top, bullet and tongue profiles appear in reference charts as the rarer variants, and occasionally a cabochon even comes with a pointed pavilion underneath.
Melée: the small-stone vocabulary
Melée are small stones, usually 3 mm or less and typically round. Less common shapes run about 4×2 mm or 5×3 mm and under. The term most often refers to small brilliant-cut or single-cut diamonds used as accents around a larger gem, though it applies to coloured stones too. Thread-work and pavé — rows of very small gems covering the metal surface — are the classic melée applications.
Drawing melée without going dark
The smaller the stone, the fewer facets you draw. Adding a full facet pattern to a 2 mm stone in a drawing renders it dark and included-looking instead of sparkling. The working rules from the drawing table:
- A few stones of 3–4 mm — draw the full brilliant cut.
- Many stones of 3–4 mm — simplify the facet pattern.
- A few stones of 1–3 mm — single cut.
- Many stones of 1–3 mm — single cut, further simplified.
Consistency is the rule that binds these choices: pick one style to suit the design and never mix styles within a layout. Enlarged views beside actual-size views are the standard way to show both the detail and the real scale on one board.
Working cabs and melée into a design
Cabochon profiles change setting choices — a high dome or a deep belly pushes a design toward a bezel, and bezel-setting a cabochon has its own technique. For the broader comparison of domed and faceted stones, see cabochons versus faceted gems, and for surrounding a centre stone, prong setting versus bezel setting. Gem drawing fundamentals — guidelines, symmetry and accurate outlines — are covered in how to draw gemstone settings.
These reference charts come from the drawing module of JDMIS Creative Drawing and Essential Jewellery Knowledge, where students draw cabs and melée at actual size and enlarged. To test the identification side of the same stones, try the Name That Gem challenge.
Frequently asked questions
What is a cabochon?
A cabochon is a facet-less style of cutting a gemstone: a polished dome with a defined outline. Cabs are found mostly in opaque materials or lower grades of gem-quality material, and drawing one requires only the outline of its shape.
Which gems are usually cut as cabochons?
Jade, agate and amber are commonly cut as cabochons, along with softer translucent and opaque gems and any stone with patterns worth displaying. Sapphire and ruby can be cut en cabochon, but only their lower-clarity grades — fine material is more valuable faceted.
What does melée mean in jewellery?
Melée are small stones, usually 3 mm or less and typically round, most often small brilliant-cut or single-cut diamonds used as accents around a larger gem. Thread-work and pavé settings are built from melée.
Why draw fewer facets on small stones?
A full facet pattern drawn at 1–3 mm scale reads as dark and included rather than sparkling. Fewer facets — down to a simplified single cut — keep small stones looking bright in a design.
Tracing gets a bad reputation in art, but in jewellery design it is a production technique. A working designer is expected to turn one accepted design into a whole line of matching pieces, quickly and by hand, and tracing is the fastest way to do it. This guide walks through the tools, the core techniques and the repetition patterns taught in JDMIS introductory jewellery drawing courses.
The basic setup
Designers trace with a 2H pencil on translucent tracing paper, which lets you see the source image underneath and find its edges. Anything flat with a hard surface underneath works as a source: your own drawings, photographs, catalogues, trade magazines and reference books.
Fix the tracing paper to the source with masking tape before you start. If the paper shifts mid-trace, lines double up, and doubled lines are not acceptable in presentation work — the tape comes off cleanly afterwards without damaging the original.
Three techniques that create variation
Axial symmetry
Mirror a shape along an imaginary axis. On tracing paper this is as simple as tracing a shape, flipping the paper over, and tracing it again — the flip produces the mirror.
Radial symmetry
Rotate a shape around a central point instead of mirroring it. A full rotation of 360 degrees returns the element to where it started; partial rotations produce the sunburst arrangements seen on round pins and pendants. You achieve this by rotating the tracing paper between traces.
Partial tracing
Trace only a portion of a design element, then combine it with fragments traced from elsewhere on the same design or from a different one. Partial tracing is how two magazine images become one new composition rather than two copies.
Repeating patterns for bracelets and necklaces
Repetition is where tracing pays off commercially. Four strategies cover most cases:
- Offsetting elements — move one or more elements sideways between repeats. Offsetting suits geometric shapes and produces quick bracelet and necklace layouts.
- Flipping while repeating — introduce axial symmetry into the repeat so the eye does not read a plain linear chain. This suits organic shapes.
- Rotating with linear repetition — use radial symmetry within a straight repeat for variation that still follows a line.
- Rotating around a point — spin elements around a centre for circular, radial designs such as sunburst pins. Partial rotations often look better than the full circle.
Nothing stops you combining flipping, rotating and offsetting in one design — the unusual combinations are usually the strongest.
Speed and accuracy habits
- Keep the work surface clear enough to rotate the source fully.
- A mechanical pencil with 2H lead holds its point longer; keep the tip sharp.
- Use light pressure and a smooth pace; trace only the outline or part of it.
- Turn the paper so your hand stays comfortable — never stretch into an awkward position.
- For long straight lines, work in small overlapping sections and lighten the pressure at the joins so no overlap shows.
- Ink over the finished pencil trace with a black pen for the final line.
Why variation matters commercially
Not every design is saleable or manufacturable, and employers expect jewellery lines rather than single pieces — without spending the same time on each variation as on the original design. Customers, meanwhile, engage more when they see several variations to choose from; a selection builds confidence in the purchase.
A practical classroom exercise: trace three jewellery items from a magazine in pencil, combine two of the tracings in several ways, then ink the best composition. Trace one element repeatedly in a straight line to develop a link bracelet, or rotate it around a 360-degree guideline to build a sunburst pendant.
Related reading
Tracing is one of the first hand skills covered in the Creative Drawing and Essential Jewellery Knowledge course at JDMIS. To go further with drawing fundamentals, read about the major forms, critical lines that define shape, and how jewellers draw rings to scale.
Frequently asked questions
Is tracing cheating in jewellery design?
No. Tracing is a standard production technique for transferring shapes and building design variations. The creative work is in how traced elements are combined, mirrored, rotated and offset — not in redrawing every outline freehand.
What pencil should I use for tracing?
A 2H lead in a mechanical pencil. The hard lead holds a sharp point, keeps lines light enough to correct, and takes black ink cleanly over the top for the final design.
How do I keep tracing paper from moving?
Fix it to the source with masking tape. It holds the paper still during the trace and peels off without damaging the original page.
Can tracing create repeating patterns?
Yes — offsetting, flipping, rotating along a line and rotating around a point are the four standard repetition strategies, suited respectively to geometric elements, organic shapes, linear repeats and radial designs like sunburst pins.
When a jeweller quotes a stone, the number is not a guess and it is not a secret — it comes from a small set of trade benchmarks that the industry has built over decades. Knowing they exist changes how you read any gem price, from the 4 Cs of diamonds to a gem certificate.
Diamonds: the Rapaport benchmark
The Rapaport price list is the international benchmark dealers use to establish diamond prices across all major markets. Subscribed to by dealers and jewellers, it states current market prices by size, colour and clarity, is updated weekly, and reflects changes in the global diamond markets. It is often used openly with customers — and in practice serves as the basis from which recommended retail prices are discounted. Alongside it, Diamonds.net offers subscription price lists that compare the Rapaport sheet in real time against the average and best prices of live listings on RapNet, the Rapaport diamond trading network.
The source that beats every chart
For actual cost prices, there is no substitute for speaking to a supplier: diamond dealers in Singapore provide price lists to qualified businesses, along with advice on payment methods and terms. Charts give the shape of the market; conversations give the number.
Coloured gems: the Gem Guide and friends
Coloured stones have their own authorities. Gemworld's Gem Guide — from a company with thirty years of supplying prices to the industry — is the reliable benchmark for independent, market-driven wholesale pricing, available by subscription in print and online. GemVal pioneered online gemstone valuation as a further reference point. Where diamonds price off one dominant sheet, coloured gems reward knowing several sources — which is itself part of how gem value is judged.
Why this matters at the counter
These benchmarks explain two things shoppers notice. First, why stone quotes move week to week: the underlying lists do. Second, why two jewellers can quote differently for similar stones: each starts from the same benchmarks but lands on different terms from suppliers. Combined with metal-weight estimation and the worked example in why jewellery costs more than its materials, they complete the professional picture of where a price tag actually comes from.
Matching jewellery sets — a pendant with earrings, a bracelet with a ring — need the same design at different sizes. A traced copy reproduces a design exactly, but an earring at pendant scale is often too large and heavy to wear, and a pendant at earring scale looks insignificant. Jewellery designers solve this at the drawing table with a fast grid technique that enlarges or reduces a design while keeping its proportions exact.
Why proportion matters more than size
The problem with naive scaling is distortion: stretch a design in one direction and the piece stops looking like itself. The hand method below keeps the length-to-width ratio constant, because everything is governed by one diagonal line. A photocopier will enlarge instantly, but the grid method needs no equipment and no queue — useful when a deadline is close.
The diagonal-grid method, step by step
- Draw the design at actual size. Sketch the piece in HB pencil, focusing on the outline and negative spaces first and leaving details for later. Ink the outline for sharp definition.
- Box the outline. With a ruler or triangle template, draw a box tightly around the outline at its exact length and width. Add a diagonal from the lower-left corner to the upper-right corner — this is the most important line in the whole process.
- Divide into quarters. By eye, draw a vertical centre line; where it crosses the diagonal, draw a horizontal line. You now have four sections.
- Divide again into sixteenths. Repeat the halving inside each quarter. Each time a vertical line meets the diagonal is where the next horizontal goes. Perfect measurement is not necessary — each section should just look equal to the eye.
- Set the new size on the diagonal. Extend the diagonal line by a few centimetres and extend the left vertical of the box upward. Decide the new size, draw the new top of the box parallel to the bottom until it meets the extended diagonal, and drop a vertical down from that meeting point. The new box is larger (or smaller) but has exactly the same length-to-width ratio as the original, because the diagonal never changed.
- Transfer the grid. Trace the new box and its diagonal onto tracing paper and divide it into sixteen sections the same way.
- Transfer the design point by point. Mark five or so points where the outline crosses grid lines in the small box, locate the same positions in the large box, and connect them with a smooth pencil line. Ink the final outline.
Combining scale with variation
Enlargement and reduction multiply the value of tracing techniques: trace to vary a design, then scale it to build an entire line — pendant, earrings, bracelet — from one accepted theme. The same design language appears at every scale, which is exactly what makes a set read as a set.
Scale also interacts with weight and wearability. A design that works as a pendant can be unwearable as an earring not because of its shape but because of its mass, so the reduced member of a set is often the one that gets worn most. Deciding pendant-versus-earring scale is a design decision, not an afterthought.
Where this is taught
The grid method comes from the drawing module of JDMIS Creative Drawing and Essential Jewellery Knowledge (JD100), where students practise enlarging and reducing their own traced designs into matching sets. It sits alongside top and side view drawing and estimating gem weight in a drawing as core hand skills.
Frequently asked questions
Why draw a diagonal line across the box?
The diagonal fixes the length-to-width ratio. Any box whose corner stays on that same diagonal — larger or smaller — keeps the exact proportions of the original design, so enlarging along the diagonal cannot distort the shape.
Do the grid sections have to be measured precisely?
No. The divisions are drawn by eye; the guide is that each of the sixteen sections should look as close as possible in size and shape. Precision comes from transferring the outline points at the grid crossings, not from measuring the grid itself.
How many points should I transfer between grids?
Around five well-chosen points where the outline crosses grid lines are enough to reconstruct the design accurately in the new box. Connect them with a smooth light pencil line, adjust, then ink.
When should a set member be reduced rather than kept the same size?
When wearability demands it: an earring copied at pendant size is commonly too large and heavy, while a pendant shrunk to earring size looks insignificant. Matching a set is about matching the design language at scales that suit how each piece is worn.
The price of pure gold and the price of jewellery made from gold are far apart — and the gap is not a mystery. Professional training opens the topic with a worked example any buyer can follow.
A ring, taken apart on paper
Take a piece of 18-karat gold and diamond jewellery weighing 10 grams, priced at 2,500 dollars. Only 18 of 24 parts — 75 percent — of 18K metal is pure gold, so those 10 grams contain 7.5 grams of gold. At a market price of 52 dollars per gram, the gold in the design is worth about 390 dollars. Its three small high-clarity diamonds of about a quarter-carat each, priced from the trade's Rapaport price sheet at roughly 392 dollars apiece, add about 1,176 dollars. Total identified materials: roughly 1,566 dollars — nearly a thousand dollars below the price tag.
Where the other thousand dollars goes
Three reasons account for the gap. First, the calculations so far ignored the other materials: a quarter of 18K gold is alloy metals, and those are not free. Second, the figure includes none of the labour to make the piece, nor the design work behind it — the hours of fabrication, setting and finishing the design required. Third, it covers none of the operating costs a retailer must carry to keep the doors open. Jewellery pricing is as much art as science: it needs experience, research, access to raw-material prices, labour charges and business operating costs — and even with all of them, nobody can do more than estimate a price without the physical piece in hand.
Weight is only the start
Both halves of the materials bill deserve their own scrutiny. Metal weight can be estimated four ways, from quick comparisons accurate to a factor of two or three, up to CAD models within five to ten percent — the full ladder is in how jewellers estimate metal weight. Stone value runs through its own grading logic, from the 4 Cs of diamonds to how gem value is judged.
Rising metal prices change the arithmetic
One more professional reality: gold and silver prices are expected to stay high, which means a jeweller who sells a piece must replace that inventory at increasing cost. Pricing structures have to absorb tomorrow's metal prices, not just today's — one reason jewellers often accept smaller margins to stay competitive at familiar price points. For designers, understanding this arithmetic is part of the profession itself: it is taught alongside how pieces are made in the school's business and design curricula, and it is the knowledge that turns a shopper's suspicion into an informed purchase.