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Poseidon's Mistress
  • Poseidon's Mistress
  • Poseidon's Mistress
  • Poseidon's Mistress
  • Poseidon's Mistress
  • Poseidon's Mistress
  • Poseidon's Mistress
  • Poseidon's Mistress
  • Poseidon's Mistress
  • Poseidon's Mistress
  • Poseidon's Mistress
  • Poseidon's Mistress
  • Poseidon's Mistress
  • Poseidon's Mistress
  • Poseidon's Mistress
Poseidon's Mistress

— 4.83 / 5,480+ Reviews

Poseidon's Mistress

$225.00 AUD

— Silver
Size (US SIZES)

FIND YOUR PERFECT FIT

Sizing shouldn’t be a guessing game. Whether it’s a ring, chain, or cuff — this guide will help you get it right the first time. And if it’s not quite perfect? You’re covered by our Perfect Fit Guarantee (scroll to the bottom).
FIND YOUR RING SIZE

Getting your ring size right matters — and while DIY methods can help, they come with a higher chance of error.

If you want to get the perfect fit, we recommend ordering our ring sizer kit or visiting a local jeweller for the most reliable result.

OPTION 1: DIY METHODS
USE A RING YOU ALREADY OWN

[40-50% chance of perfect fit]

Grab a ring that fits the desired finger. Measure its inner diameter in MM and match it to our size chart — this is the most accurate DIY method. If you can, use a calliper for an accurate measurement.

TIPS FOR ACCURACY

  • Measure at the end of the day (your fingers swell slightly). Don’t measure when your hands are cold (they shrink).
  • Consider the knuckle—if it’s larger than the base, measure both and choose a size in between.
  • If between sizes, size up for thicker bands or down for thinner ones.
  • Match the ring with the finger you want to wear it on. Remember that fingers vary in size, as does your left and right hand.
PRINTABLE RING SIZER

[30-40% chance of perfect fit]

Download our printable sizer or use a strip of paper around your finger, mark the overlap, then measure the length in mm.

TIPS FOR ACCURACY

  • Be sure not to pull too tight.
  • Ensure the page is set to 100% scale
STRING OR FLOSS METHOD

[30-40% chance of perfect fit]

Wrap a piece of string around the base of your finger, mark the overlap, then lay it flat to measure. This method can be less accurate — avoid stretchy materials.

TIPS FOR ACCURACY

  • String can stretch.
  • Tight wrapping can lead to incorrect sizing.
  • Try 2–3 times for consistency.
OPTION 2: RING SIZER KIT

100% Accuracy

Not sure of your size? We have taken our exact ring moulds and converted them into stainless steel rings marked with our sizes.

Each size is in the kit for you to try on and wear around to make sure it feels right.

Simply slip each ring onto your fingers to get your exact size. Perfect fit guaranteed.

Available in AUS only. Rolling out internationally in the coming weeks.

Order your Ring Sizer Kit Now!
OPTION 3: FIND A LOCAL JEWELLER

[90% chance of perfect fit]

For complete peace of mind, you can also pop into any local jeweller for a quick sizing — they’ll measure you in seconds.

This is a great option if it's a gift. Just bring a ring that the recipient already owns/wears and ask the jeweller to give you a size measurement.

RING SIZE CHART
PERFECT FIT GUARANTEE

If the size isn’t quite right, don’t stress — we offer one free size exchange on all jewellery.

Just return your piece in original condition and we’ll replace it with the correct size.

Start an exchange

Limited Pieces. 24 hrs only

Ready To Ship Pieces - Fast Delivery

SHIPPING & DELIVERY

We can’t guarantee delivery before Christmas due to holiday carrier demand. For a guaranteed last-minute option, our Digital gift cards are delivered instantly straight to your email.

Merchants ship to almost any address worldwide. The US and UK benefit from free shipping with duties and taxes paid.

AUSTRALIA

STANDARD - $8.95. 3-7 business days.
EXPRESS - $11.95. 1-3 business days.
Spend over $249 AUD for free shipping.

UNITED STATES

FREE SHIPPING on all orders over $159USD with Express.

NEW ZEALAND

DHL EXPRESS - $10.95 NZD. Spend over $300NZD for free shipping. [2-8 business days]

UNITED KINGDOM

FREE SHIPPING on all orders over $159GBP with Express. Duties & taxes paid. [2-8 business days]

INTERNATIONAL

Rates vary by country and will be calculated at checkout.
RETURNS & EXCHANGES

PLEASE NOTE: ALL BOXING DAY PIECES ARE FINALE SALE AND CANNOT BE RETURNED.

We offer free exchanges on all orders within 30 days of delivery. AUS and US customers will receive a pre-paid returns label (Head to our returns portal to process a return.) International customers will need to cover the costs.

All full price items (excl. earrings, engraved pieces, and made-to-order) can be returned within 14 days of your delivery date for a refund. Customers are responsible for all associated return costs.

Excludes: Discounted products, earrings, engraved and made to order items.

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