Cordelia Oval Cut Australian Opal Engagement Ring in 14K White Gold

In white gold, the Cordelia turns moonlit. A natural oval-cut Australian opal — 5×7 mm of drifting blues, greens, and pastel fire — sits above a bright band of solid 10K, 14K, or 18K white gold or platinum, its vintage-inspired setting traced with moissanite or natural diamond accents. Where the rose gold Cordelia glows warm, this one shimmers cool: ice, starlight, and a stone that never repeats itself.

White metal, full spectrum

Against a cool white band, an opal’s play-of-color has nowhere to hide. White gold and platinum act like a neutral gallery wall: every flash of blue, green, and pastel fire inside the stone reads at full saturation, and the accent stones bridge the opal’s glow into true sparkle. It is the choice for someone who wants the opal itself — not the metal — to do the talking. See how the setting metals compare in our platinum vs gold guide, or browse the cool-toned side of the catalog in our white gold jewelry collection.

An heirloom silhouette

Like its rose gold sibling, the white Cordelia keeps deliberately antique proportions: a smooth 5×7 mm oval cabochon — the traditional, unfaceted cut that suits opal best — over a slender 2.0 mm band lined with small accents in the manner of early twentieth-century rings. The oval shape gently elongates the finger, a quality it shares with our oval engagement rings, while the overall effect stays intimate and detailed. The full range of the stone’s moods lives in our opal engagement rings collection.

The opal itself

The center stone is a natural Australian opal of approximately 0.7 carats. Every stone carries its own play-of-color pattern — a private constellation — so no two Cordelias are ever quite the same. Opal is also the October birthstone; if you are matching a stone to a birth month, our guide to finding your birthstone is a good companion, and our opal engagement ring guide goes deeper on the stone itself.

Choose your metal: white gold or platinum

Every option is solid precious metal throughout, never plated, and each is its own selection in the drop-down menu:

• 10K white gold — the hardest, most scratch-resistant gold alloy and the most affordable way into solid gold.
• 14K white gold — the most popular all-rounder, balancing durability, color, and value.
• 18K white gold — the richest gold content for a warmer, more luxurious feel.
• Platinum — naturally white, the densest and most substantial choice, and hypoallergenic.

Yellow gold and rose gold are also available on request. For the karat decision, our 10K vs 14K vs 18K karat guide lays out the trade-offs.

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 sits at 5.5–6.5 on the Mohs hardness scale, so give it the consideration an heirloom deserves: off before workouts, gardening, and household chemicals, cleaned with a soft, slightly damp cloth rather than ultrasonic or steam equipment. Natural opals vary slightly in pattern from stone to stone — the signature of a genuinely natural gem.

Sizing can vary up to half a size between jewelers’ sizers and mandrels, so please check our ring sizing guide before ordering. Each 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 added from the drop-down menu (non-refundable once the work has been performed).