Marcasite Jewelry

Marcasite jewelry is set with tiny crystals of pyrite — iron pyrite, cut with small facets and polished to a metallic glitter — almost always in silver. The effect is a field of small bright points, like steel filings catching light, and it made marcasite the working sparkle of jewelry that wanted to glow in the evening without diamonds. Jewelry sold as marcasite is, strictly, pyrite; the name carried over from an older trade term, and the craft around it is centuries deep.

Its ancestor is cut steel: in the eighteenth century, faceted steel studs were set like gems in buckles, buttons, and jewelry that glittered famously by candlelight. Pyrite took steel's place in the nineteenth century, easier to cut and slower to rust, and the Victorians set it across brooches, buckles, and crosses. The great age of marcasite, though, is the early twentieth century and the Art Deco years, when German, French, and English workshops turned out necklaces, rings, and brooches patterned in glittering geometry — much of the finest from Pforzheim and Idar-Oberstein in Germany, and Birmingham in England.

The stones are set small and close — pave-set into silver that is often oxidized in the recesses, so the bright points stand out against a dark ground. That contrast is the whole art of it. Marcasite keeps company with colored stones as a frame: carnelians, garnets, carved glass, and cameos all wear marcasite borders, and matching sets — necklace and earrings as a demi-parure — were a specialty, the glass stones carved in deep red or green and the marcasite links worked as bows and bars.

Marcasite asks for dry handling: the little stones are commonly secured in their settings with a jeweler's precision rather than claws alone, and soaking can loosen them, so a marcasite piece should never be immersed, steamed, or ultrasonically cleaned. A soft dry brush and a dry cloth are its whole regimen. At Royal Regency every marcasite piece is checked stone by stone before listing, described as it is — glass as glass, stone as stone — and any replacement stones are stated, so the field of light you buy is the one the maker set.

Frequently asked questions

What is marcasite in jewelry? The small glittering stones in marcasite jewelry are pyrite — iron pyrite, cut with tiny facets and polished bright — set in silver. The jewelry trade kept the older name marcasite for the finished work. Each stone is a small crystal, and hundreds of them may cover a single necklace.

What is the difference between marcasite and cut steel? Cut steel is older: actual steel, faceted and riveted into jewelry that was famous by candlelight in the eighteenth century. Marcasite jewelry uses pyrite crystals instead of steel, appearing later and reaching its peak in the early twentieth century. The two look alike at a glance; the materials and construction differ.

How should marcasite jewelry be cleaned? Dry, always. Brush dust away with a soft dry brush and wipe with a dry or barely damp cloth. Never soak a marcasite piece, and keep it out of ultrasonic and steam cleaners — water works into the settings and can loosen the stones.

Why is marcasite usually set in silver? Silver's white surface and softness suit the stones: it takes the dark oxidized finish that makes the pyrite points glitter, and it can be worked into the small pave settings marcasite needs. Fine marcasite work is usually stamped sterling or a continental standard such as 935 or 950.

What is a demi-parure? A demi-parure is a small matching suite — typically a necklace with earrings, or a brooch with earrings — as distinct from a full parure, which might add a bracelet, tiara, and more. Vintage marcasite and glass sets are classic demi-parures, made to be worn together.

From Our Archive

The pieces below have already been sold through Royal Regency. We keep them here as a record of the jewelry we handle — each one researched and checked before it was offered, in the same way as everything in this collection.

A sterling marcasite and rhinestone heart necklace, Deco style. Sixteen inches of pave-set sparkle gathered into a heart — the evening glitter marcasite was made for. Sold through our Whatnot showroom.

An Art Deco carnelian and marcasite cocktail ring in sterling silver. The warm red stone crowned with glittering marcasite points — a cocktail ring built to catch candlelight. Sold through our Whatnot showroom.

A 1940s sterling and marcasite collar necklace. The collar sits close and covers the throat in patterned sparkle — marcasite's most elegant necklace form. Sold through our Whatnot showroom.

A garnet and marcasite ring in sterling silver, Deco style. Deep red garnet ringed by bright marcasite — the color pairing the Deco jewelers returned to again and again. Sold through our Whatnot showroom.

A 950 silver and marcasite carved shell cameo brooch and pendant. A carved shell profile given a frame of glittering points — two antique traditions, cameo and marcasite, in one piece. Sold through our Whatnot showroom.