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Vintage onyx pin with seed pearls and rose-gold frame, arched floral design
Onyx seed-pearl pin on blue denim jacket, round button detail at center
Vintage onyx pin with seed pearls and rose-gold frame, arched floral design
Onyx seed-pearl pin on blue denim jacket, round button detail at center

C. 1900 Vintage Onyx Pin with Seed Pearls in 14kt Rose Gold

19% Off

$1,895

$1,519
C. 1900. From our Estate collection comes this spectacular Victorian-era statement! The 15x12-70x20mm carved onyx pin instantly grabs attent…

Item 230077

Details

All weights and measurements are approximate. Most gemstones are treated to enhance their beauty and may require special care.

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The deeper story

Stone Story

Black onyx is almost always treated chalcedony. Gray or brownish stone is processed with sugar solution and sulfuric acid to carbonize organic material, producing a stable black that has been standard practice since ancient Rome. The treatment has no meaningful effect on durability, which is useful information when considering a gift of black onyx.

Industry Insight

When assessing a rose gold piece, look for '14K,' '14KT,' or '585' stamped on the metal, the same purity marks used on yellow and white gold, confirming the gold content regardless of color.

Elemental Detail

Rose gold's pink hue comes from copper in the alloy, with the specific tone determined by proportion. More copper produces a deeper rose, less produces a softer blush, which is why rose gold pieces can vary in warmth.

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