Cordelia Oval Cut Australian Opal Engagement Ring in 14K Solid Rose Gold

The Cordelia belongs to another era — on purpose. This opal engagement ring in rose gold pairs a natural oval-cut Australian opal with the warm blush of solid 10K, 14K, or 18K rose gold, in a vintage-inspired design with the quiet glamour of an Art Deco heirloom. Moissanite or natural diamond accents trace the setting, catching the opal’s shifting play-of-color and returning it as sparkle.

Why opal and rose gold belong together

Rose gold flatters an opal the way candlelight flatters a room. The metal’s coppery warmth picks up the pinks and pastel fire inside the stone’s play-of-color, so the whole ring reads as one continuous glow rather than a stone sitting on a band. It is the most romantic pairing in the opal family — compare the tones in our yellow gold vs white gold vs rose gold guide, or browse the blush side of the catalog in our rose gold rings collection.

A vintage soul, drawn in miniature

The Cordelia’s proportions are deliberately antique: a 5×7 mm oval cabochon — smooth-domed in the old lapidary tradition rather than faceted — held above a slender 2.0 mm band with accent stones set like a string of vintage brilliants. The effect recalls the rings of the 1920s: intimate, detailed, made to be admired up close. If that era calls to you, our vintage and antique-style engagement rings continue the story, and the opal engagement rings collection shows how many moods this stone can wear.

The opal itself

The center stone is a natural Australian opal — the classic source for the world’s finest opal — cut as an oval cabochon of approximately 0.7 carats. Its play-of-color drifts as your hand moves, no two stones ever patterned alike, which makes every Cordelia subtly one of a kind. Our opal engagement ring guide covers what to look for in these stones, from color bar to pattern.

Choose your karat of solid rose gold

Every Cordelia is solid rose gold throughout — never plated. Select your karat from the drop-down menu:

• 10K rose gold — the hardest and most durable option, and the most affordable for everyday wear.
• 14K rose gold — the most popular all-rounder, balancing durability, warm color, and value.
• 18K rose gold — the richest, warmest rose hue with the highest gold content.

Our 10K vs 14K vs 18K karat guide walks through durability, color, and value so you can choose with confidence.

Choose your accent stones

• Moissanite — color D, clarity VVS1, hardness 9 on the Mohs scale.
• Natural diamond — conflict-free, color G/H, clarity I1 (eye clean), hardness 10 on the Mohs scale.

Specifications

Sizing & care

Opal is a soft gemstone at 5.5–6.5 on the Mohs scale, so treat the Cordelia as the heirloom it is styled to be: remove it before workouts, gardening, and household chemicals, and clean it with a soft, slightly damp cloth — never an ultrasonic or steam cleaner. Each natural opal varies slightly in pattern, which is exactly what makes yours yours.

Sizing can vary up to half a size between jewelers’ sizers and mandrels, so please check our ring sizing guide before ordering. The ring is made to order — please allow 3–5 weeks for it to be handmade for you; requested modifications may adjust production timelines and pricing. Complimentary engraving of up to 16 characters, a free luxury ring box, and free USA shipping are included, and an optional appraisal can be selected from the drop-down menu (non-refundable once the work has been performed).