Paste Jewelry: The Glass That Was Never Ashamed of Itself
Paste is not fake diamond. It is glass, cut and foiled by hand for candlelight, worn openly by people who could afford diamonds and often preferred the glass. Old paste is a legitimate jewel with its own connoisseurship.
The modern eye meets an eighteenth-century paste necklace and asks the wrong question: what is it imitating? The Georgian answer would have puzzled at the premise. Paste, hand-cut leaded glass, was a material in its own right, made by specialist workshops, set by fine jewellers in silver and gold, bought by aristocrats who owned diamonds and wore the paste anyway, for travel, for candlelight, for the simple reason that it was beautiful and cuttable into shapes diamonds resisted. Old paste is not a lie about diamonds. It is glass with a career.
What paste actually is
The recipe is glass with a high lead content, dense, dispersive, soft enough to cut on a wheel like a gemstone rather than mould like a bottle. Georges Frédéric Strass, the Strasbourg-born Parisian jeweller of the 1730s, perfected and popularised the material to such effect that his name became its continental synonym, strass, still the word in half of Europe. Workshops cut each stone individually, matched suites by hand, and set them exactly as diamonds were set in the period: foil behind the stone, closed backs, silver fronts, the whole Georgian settings grammar.
That craft context is why the material commands respect: an old paste rivière represents hundreds of hours of wheel-cutting and foiling, in period, by the same trades that made diamond jewelry. The glass was honest; only later centuries projected embarrassment onto it.
Recognising genuine old paste
The cut. Hand work shows: facets meet slightly unevenly, outlines are individual, and shapes appear that diamond cutters of the day could not afford to waste rough on, closely fitted shaped stones tiling a bodice ornament being the classic tell. Paste cutters cut to the design; diamond cutters cut to the crystal.
The surface. Glass is soft, so old paste shows its age honestly: facet edges gently rounded by wear, fine scratches, the occasional chip with the glassy conchoidal look. Crisp unworn facets on a supposedly Georgian piece argue re-cutting or reproduction.
The black dot. Many Georgian pastes carry a small dark spot painted at the culet, mimicking the open culet's dark window in period diamond cuts, compare the old cut diamonds article, and improving the illusion by candlelight. The dot is a period signature forgers long overlooked.
The setting. Closed backs, foil, silver, hand construction: paste travelled in exactly the mounts its diamond contemporaries used, and the mount is dated by the ordinary dating checks. Foiled and sealed backs also mean the cardinal care rule: water is the enemy, one soak clouds the foil forever.
Against later rhinestones. Machine-pressed stones with identical outlines, mirror-bright modern foils, open claw settings and white base metals say nineteenth-to-twentieth-century mass production, a different and humbler genre. The difference is the difference between a wheel and a mould, visible at 10x.
The market, honestly
Fine Georgian paste has outpriced many casual expectations: important pieces bring serious money, suites and rivières especially, and even modest earrings trade briskly, because supply is tiny, glass survives worse than diamond, and the collecting field matured. Condition rules the price, original foil bright and unclouded, stones unchipped, settings unmolested, and 'sympathetic' repairs with modern stones or new foils cut value hard. The classic frauds run in both directions, paste sold as diamond to the ignorant, and modern reproduction sold as Georgian paste to the enthusiastic, and both fall to the same examination: cut, wear, foil, mount, era, read together.
Paste's lesson generalises across the whole site: materials are innocent, descriptions are where honesty lives. Glass described as Georgian paste is a collectable telling the truth; the same glass described as diamonds is a fraud, and the difference was never in the stone.
Frequently asked questions
What is paste in antique jewelry?
Hand-cut high-lead glass, developed to brilliance in the eighteenth century, foiled and set like the diamonds of its period. A legitimate material with its own workshops, market and collectors, not merely a diamond imitation.
How can I tell old paste from diamonds?
Paste is glass: warmer to the touch, softer, its facet edges rounding with wear, often foiled in sealed closed backs, and frequently bearing a painted black culet dot on Georgian stones. Diamonds stay crisp and cold. A jeweller's tester settles residual doubt without harm.
How do I tell Georgian paste from later rhinestones?
Hand versus machine: individual wheel-cut stones with slight irregularities, shaped to fit designs, in closed-back foiled silver, against pressed identical stones in open plated settings. The mount's construction dates the whole object.
Why do old paste stones have a black dot?
It imitates the dark open culet of period diamond cuts, sharpening the illusion in candlelight. The dot is a genuine Georgian signature worth looking for at the culet.
Is paste jewelry valuable?
Good Georgian and early Victorian paste is genuinely collectable, with fine suites commanding strong prices; condition of foil and stones drives value. Later mass-produced rhinestone goods are a separate, modest market.
How should paste be cleaned?
Dry, soft and seldom: never soaked, since moisture penetrates closed backs and clouds the foils permanently. A soft brush and barely damp cloth on the fronts is the safe maximum.