Knowledge & Craft
Diamond, gemstone and jewellery guidance from a gemologist-led Melbourne jeweller.
Journal
How yellow gold interacts visually with D-to-Z diamonds and why the setting head colour can be designed separately Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Simple precautions for documentation, storage, hotel safes, cleaning and insurance while travelling Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How a lab report describes a loose stone while a valuation addresses the complete item and a value purpose Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Common causes, what repeated distortion can do to settings, and when reinforcement may be needed Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Signs of thinning, flattening or lifting and why retipping is preventive stone-security work Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Why jewellery gold is alloyed and how purity affects colour and mechanical properties Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How copper-rich alloys create warm pink tones and why shade varies with karat and alloy recipe Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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What rhodium plating does, why it wears gradually and when replating may be desired Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Why tanzanite’s colour is prized but its lower toughness means ring settings should protect the stone Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How tourmaline’s wide colour range and moderate hardness affect setting and care choices Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Cleaning, claw checks, stone security and finish maintenance for plain and diamond-set bands Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Dates, initials, coordinates, short phrases and symbols, with practical space and legibility considerations Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Why a low basket often requires a curved, notched or open band Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How scalable production and changing wholesale supply can create more price volatility than buyers expect Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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The roles of carat, shape, cut quality, finish, report, grower quality, market supply and retail service Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Why some laboratory-grown diamonds receive additional treatment and where report disclosure matters Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How facet style and depth can make warmth more noticeable and why metal choice matters Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How to identify overly transparent or weak central areas and distinguish them from normal step-cut contrast Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How pavilion depth and belly shape can reduce face-up spread even at the same carat weight Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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What buyers mean by steep-deep combinations and why excess depth can affect spread and light return Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How measurements, proportions, transparency, fluorescence, report details, rarity and market factors create price differences Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How transparency issues can relate to inclusions, fluorescence interactions or other factors requiring direct inspection Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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A practical viewing checklist for focus, lighting, rotation speed, inclusion visibility and outline Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Why modern diamonds may have no culet or a very small culet and how a visible culet can affect the face-up pattern Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How groups of tiny pinpoints can affect clarity and, in some cases, transparency when extensive Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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What the term means and why position, size, relief and surface reach matter more than the name alone Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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A plain-English explanation of light return, obstruction and why a bright diamond cannot be judged from one proportion alone Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How to compare visible dimensions between diamonds of similar weight and why hidden depth can reduce apparent size Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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What to inspect in the clarity plot, video and face-up view before considering an SI1 diamond Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How GIA clarity grading works and why two diamonds one grade apart can look similarly clean to the unaided eye Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Why eye-clean is a viewing judgment rather than a laboratory clarity grade, and how distance, lighting and inclusion position matter Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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The small decisions—claw proportions, shoulder taper, basket height and band profile—that distinguish a balanced solitaire Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How millimetre dimensions, girdle outline and depth affect claw position, halo fit and overall ring proportions Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How 1.6 mm, 1.8 mm, 2.0 mm and wider bands change visual balance, comfort and structural considerations Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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What to prepare, what is usually discussed, and how a gemologist-led consultation can turn preferences into a workable brief Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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What measurements and setting condition must be checked before assuming a new centre stone will fit Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Why insurance replacement value and second-hand sale value answer different questions Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How metal, stone coverage, engraving, design symmetry and size change affect feasibility Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Why spinel offers strong durability, varied colour and a distinct gem identity Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Ways to coordinate metal, finish, engraving or profile without making both rings identical Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How the two settings differ in metal visibility, sparkle, edge protection and repairability Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Why insurance decisions depend on replacement cost and the full jewellery item, not whether the diamond was mined or grown Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How outline ratio changes the mood, spread and setting options of a cushion Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How square and elongated radiants suit different ring styles and finger proportions Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Why a wider-looking round is not automatically better if light performance is compromised Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Why two Excellent-cut rounds can still differ in proportions, pattern and visual character Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How pavé coverage, engraving, eternity-style details and shank structure can affect later resizing options Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How warm rose alloys complement diamonds and coloured gemstones, and what to consider for claws and maintenance Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Which stages can sometimes be compressed and which quality-control steps should not be skipped Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Benefits of planning height, curvature, shared motifs, diamond spacing and future stacking as one bridal set Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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A sensible inspection routine for claws, settings, shanks, clasps, rhodium, cleaning and valuation records Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How stones and metal are assessed before reuse and why sentimental value does not remove structural constraints Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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What identification, measurements, quality descriptions, photographs and replacement basis can contribute to a useful valuation Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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What a jeweller can inspect during cleaning and which gemstones should avoid aggressive ultrasonic or steam methods Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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How common pavé styles hold small diamonds and why maintenance depends on design and wear Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Compare colour, density, maintenance, wear behaviour and rhodium plating considerations Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Why peridot’s colour is inherent to the mineral and what to know about inclusions and care Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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A balanced look at colour, durability, cleaning and the visual effect of warm metal Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Why colour leads value, while clarity, cut, treatment, size and origin also matter Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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Why bridge clearance, basket width and band contour should be measured rather than assumed Learn what to check, what the terminology means and how to compare options with GemTrove’s gemologist-led guidance.
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