18k Yellow Gold Marquise-cut Amethyst Ring

Pre-owned jewelry.

This marquise ring in 18-karat yellow gold (750/1000) showcases a faceted oval amethyst. What the photo doesn’t always capture are its lilac and plum hues, which are more pronounced depending on the angle of the light.

Its four-prong setting really lets the stone shine: when worn, the amethyst catches the light with grace and maintains a clear display of its color.

• Metal: 18-karat yellow gold (750/1000), a durable alloy that retains its luster over the years
• Gemstone: faceted oval amethyst, with crystal-clear transparency
• Stone dimensions: 0.8 cm wide x 1.6 cm high
• Setting: 4 prongs
• Hallmark: eagle’s head, French guarantee of 18-karat gold
• Total weight: 2.58 g
• Size: 59, inner diameter 18.80 mm
• Condition: excellent; pre-owned piece, authenticated and carefully restored

Circular jewelry. This piece is authenticated. You are choosing a piece of jewelry that has already stood the test of time, ready to last for many more years to come.

Its elongated shape visually slims the finger: this is one of the most sought-after features in a marquise ring, likely from the 1970s or 1980s. In vintage jewelry, this detail makes all the difference.

The prong setting allows light to flow beneath the stone. What truly sets this piece apart is the balance between its striking visual presence and the lightness of wear.

I’d gladly recommend it to those seeking an expressive ring without excessive ornamentation. The amethyst adds a distinct color, while the yellow gold lends it a softer warmth rather than an overly showy brilliance.

Its excellent condition has been verified, and its authenticity confirmed.

Size 59, with an inner diameter of 18.80 mm, offers a comfortable fit. Ideal if you’re looking for a ring that you can feel without it feeling heavy.

Shipping to France, Belgium, Switzerland, and the United States—registered and insured shipping included.