Antique Australian 9ct rosy yellow gold and enamel 'poison' signet ring
Antique Australian 9ct rosy yellow gold and enamel 'poison' signet ring
- 100+ 5-star reviews
- Worldwide shipping included
- Free resize down on rings
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We are so thrilled to be able to offer this rare piece - we've never had this type of ring in stock before! Called a 'poison ring' due to its hinged secret compartment, which held (as the name suggests) poison historically, it was also popular to store other small trinkets, sentimental items, small portraits or perfume. It's a beautiful piece that would look good on any hand, featuring a clean silhouette with blue enamel detail (the enamel is in stunning condition considering the piece's age!) bordering the face of the ring. Adding to the allure of this piece are the clear Australian marks for Aronson & Co of Melbourne - we always love seeing antique Melbourne Manufacturing Jewellers Association marks! A beautiful, collectible rarity with so many amazing things going for it.
Size: R (US size 8.5)
Weight: 4.5g
Markings: Antique Australian pictorial marks including a flag for Aronson & Co of Melbourne and '9' and a wheat bundle for 9ct gold.
Condition: Beautiful antique condition. The ring's compartment opens and closes securely and there are no issues with the hinge. Enamel is in fantastic condition with no losses. Patina and scratches commensurate with age.
Resizeable? Yes

Before you buy
How do you authenticate your pieces?
We carefully assess every piece using our gemmological training, specialist tools, and industry experience. We are both studying toward the Graduate Gemmologist (GG) qualification with GIA (Gemological Institute of America) and have completed the Applied Jewelry Professional (AJP) and Graduate Diamonds (GD) qualifications.
We also work closely with our jeweller, who has almost 50 years of experience and is a qualified gemmologist.
Carat weights are estimates based on measurements taken in the setting unless otherwise stated. Precise weights can only be obtained from loose stones. Many of our diamonds are old cuts, which are often asymmetrical and not calibrated due to traditional hand-cutting techniques.
We aim to provide clear photos and videos from multiple angles to help you purchase with confidence.
Do I have to pay tariffs or duties when buying from the US?
Yes - US customs may apply tariffs, duties or taxes on imported jewellery. Don’t worry! We ship all US orders with DHL Express, who handle the customs clearance for you. You can read our full guide here.
Do you offer layaway or payment plans?
We offer an interest-free layaway (lay-by) service on orders over $500 AUD - please get in touch using the form below to set this up. Full details can be found on our layaway policy page.
PayPal Pay in 4 is also available at checkout (subject to eligibility), which allows you to pay in instalments to PayPal while we send your piece out right away.
Do you offer ring resizing?
Yes! We’re happy to help you get the perfect fit.
- Sizing down: Complimentary on all rings where resizing is possible - let us know your preferred size at checkout.
- Sizing up: Please contact us for a quote.
Our jeweller takes great care to keep the finish seamless and preserve original details and hallmarks where possible.
You can read more about ring resizing and common myths in our blog post.
I'd like more information about this piece
No worries at all, we're always happy to help! Please use the contact form below to ask a question and we'll get back to you as soon as we can.