• 5.45ct Lightning Ridge opal cocktail ring with bezel-set ruby accent and diamond shoulder in 18ct yellow gold, front three-quarter view.
  • Model wearing 5.45ct Lightning Ridge opal, ruby and diamond cocktail ring in 18ct yellow gold on the hand.
  • Close-up of freeform green-blue Lightning Ridge opal with round ruby accent in 18ct yellow gold setting.
  • Side profile showing diamond-set shoulder and ruby tube-bezel on the 18ct yellow gold opal cocktail ring.
  • Top view macro of domed opal and openwork gallery of the 18ct yellow gold ruby and diamond cocktail ring.
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Stone River Gems

5.45ct Lightning Ridge Opal, Ruby & Diamond Cocktail Ring — 18ct Yellow Gold

5.45ct Lightning Ridge Opal, Ruby & Diamond Cocktail Ring — 18ct Yellow Gold

$15,600.00 AUD
$15,600.00 AUD
Sale Sold out
Taxes included. Shipping calculated at checkout.
Ring size

Bold yet refined, this ring captures the essence of Australian luxury. At its centre, a striking 5.45ct Lightning Ridge black opal glows with flashes of deep blue and green — a stone alive with shifting fire.

Set against its vivid play of colour, a single ruby glimmers in rich red, adding warmth and contrast, while a sweep of brilliant-cut diamonds brings light and elegance. The split-shoulder design in 18ct yellow gold gives the ring a sculptural presence, balancing strength with sophistication.

Handcrafted using the traditional carved wax cast technique, this one-of-a-kind jewel is made to endure as both adornment and heirloom.

Details

Primary Stone: Natural Lightning Ridge Opal

Provenance: Lightning Ridge, NSW, Australia — opal personally mined and hand-cut by my late father

Carat Weight: 5.45ct

Cut/Shape: Freeform pear-shaped cabochon

Dimensions: 18.7 × 15.2 × 3.19mm

Colour: Black body tone with vivid blue-green flash

Secondary Stone: Ruby, 0.12ct, 2.8mm round, mid–dark red with slight brown undertone, lightly included

Accent Stones: 7 × round brilliant cut diamonds, 1.6–2.3mm, total 0.23ct, G colour, VS clarity

Metal: Solid 18ct yellow gold

Band: 3.7mm split-shoulder, bar-style, sculptural flattened base

Total Ring Weight: 13.9g

Manufacture: Handcrafted using traditional carved wax cast technique

Kindly note: the accompanying gemstones in the Lightning Ridge Opal Collection were not mined or sourced by Stone River Gems and may have been treated, unless otherwise stated

Shipping

Australia — Free DHL Express shipping on orders $500 AUD+ (signature required). All shipments are fully insured (via DHL).

Items over €10,000 cannot be purchased online or shipped under standard coverage — please contacthello@stonerivergems.com or +61 416 469 851 to arrange VIP delivery or in-person collection.

International (NZ & US) — Free DHL Express Worldwide shipping on orders $500 AUD+ (signature required). All shipments are fully insured (via Secursus) and sent DDP, so duties and taxes are included at checkout.

Reserve Collection: orders over €25,000, and loose gemstones cannot ship under standard coverage — contact us to arrange VIP delivery or in-person collection.

For full details, see our Shipping Policy.

Take Care

Everyday care (all jewellery)

  • Remove prior to sport, manual tasks, showing/swimming, and sleep.
  • Avoid Impacts and sudden temperature changes.
  • Store pieces separately in soft pouches/compartments.
  • Clean most jewellery with warn water & mild detergent-free soap & a soft brush, then rinse and pat dry with a lint-free cloth.

Metal care — Solid gold (9K/14K/18K)

  • Wipe with a soft cloth after wear; avoid harsh chemicals and abrasives.
  • For mixed stone settings, default to the gentlest method suitable for the most delicate stone present.

Professional checkups

  • Have prongs/claws and settings inspected every 6–12 months, or sooner if you notice movement/snags or after a hard knock.

Resizing

  • We do not recommend resizing rings from our Lightning Ridge Opal Collection. Opals are highly sensitive to heat, pressure and vibration; resizing can crack or craze the stone or compromise adhesives in layered constructions.

Opal (cleaning)

  • Hand clean only: no ultrasonic or steam. Use a slightly damp soft cloth or a quick lukewarm, mildly soapy rinse; do not soak for long.

Delicate stones (handle with extra care)

  • Opal, peridot (and some garnets): avoid ultrasonic/steam and hard knocks; stick to gentle hand cleaning.

Size & Fit

All ring sizes on our website are listed in US/Canadian sizes. Please refer to our size chart to find your recommended fit. For the most accurate result, we suggest visiting a local jeweller who can measure your finger professionally with calibrated tools.

We do not recommend resizing rings from our Lightning Ridge Opal Collection. Opals are highly sensitive to heat, pressure and vibration; resizing can crack or craze the stone or compromise adhesives in layered constructions.

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