




Australian Boulder Opal Sapphire Ruby Tsavorite Diamond 18K Yellow Gold Brooch
An otherworldly yet beautifully wearable design. A freeform Australian boulder opal is bezel-set as the heart of this sculptural 18K yellow gold brooch, its face alive with electric greens, teals, and flashes of blue and red over natural ironstone. Rising from it is a gracefully curved gold plume set with a vivid spray of marquise shape sapphires and rubies totaling 2.97 carats, marquise shape tsavorites totaling 0.43 carats, and 0.14 carats of round diamonds along the sides. The piece measures 1.50 × 2.25 inches and weighs 20.8 grams. Ready to wear.
Boulder opal forms only in Queensland, Australia, as thin veins of precious opal locked inside ironstone boulders. It accounts for a small share of all Australian opal mined, is cut with high waste, and is prized for unique patterns and greater durability than many other opals because the host rock remains part of the stone. Fine examples with strong, clean-faced play-of-color are increasingly scarce. The brooch reads as a single organic form — opal body, gold stem, jewelled plume — rather than a conventional pin. Statement scale with wearable presence.
7-Day Returns
Free Insured Shipping
Gemologist Certified
Free Ring Resizing
Questions about this piece?
Speak with Wesley, our GIA trained gemologist — (310) 550-5755
Monday to Friday, 10:30 a.m. to 4:00 p.m. PT · Email us
Want to see it before you decide? Ask for a live video call on FaceTime or WhatsApp and we will show you the piece in hand. Book a video call
- Free 2nd day domestic shipping on every order (overnight upgrade available for $30)
- Orders processed in 2-5 business days; all shipments insured and require a signature
- Full refund if you email us at info@jeweleretteandco.com within 7 days of delivery; exchange or store credit within 8-14 days
- We pay return shipping; we email you a prepaid insured FedEx label
- Returned items must be unworn, unaltered, and include all original tags; resized, engraved, or custom pieces are final sale
- International orders available by phone or email
- Complimentary ring resizing during the first year of purchase
- Lifetime free setting repairs, including prong re-tipping, re-setting loose stones, and polishing
- Free replacement of missing micro-pave stones within the first year
- Every item is authenticated by a GIA trained gemologist
More Details
Main Stone: Opal
Stone Cut: Brilliant
Metals & Materials: 18k Gold and Yellow Gold
Make an Offer
Choose options





Australian Boulder Opal Sapphire Ruby Tsavorite Diamond 18K Yellow Gold Brooch
Sale price$7,000.00