Trioss Engagement Ring

FROM $4,750 AUD

The Trioss Engagement Ring features a trio of elegantly sized diamonds, culminating in an understated, yet stunning, engagement ring.

Each WILLIAM ÉDOUARD Engagement Ring can be tailored to your preferences, from the design of the band to the type, cut, colour, clarity and total carat weight of the gemstone or diamond.

For more information about our Bespoke Service, please select 'Bespoke Enquiry' below.

The Engagement Ring pictured features a total carat weight of approximately 0.50ct.

Book Engagement Appointment

- Solid 14k or 18k yellow, white and rose gold
- High polish finish
- Approximately 2mm band width
- 0.47 total carat weight (4mm centre diamond and 3mm side diamonds)
- Matte finish available upon request

Our engagement rings are customisable in every way from band design to diamond size/carat weight.

Please contact us at for more information on our bespoke service.

Please note: As no two diamonds are the same, it may not be possible to select a diamond that fits the precise dimensions listed above. Due to this, the carat weight may vary by up to 3%. I.e. a diamond listed as “0.84ct” may vary between 0.81ct - 0.86ct but will not result in any visible difference to the naked eye.


Our full Diamond & Pricing Guide can be found here.


Our ring size guide and ring sizers can be found and purchased here.


If your chosen product (and size/metal selection) is in stock and ready to ship, the “Add to Cart” button with change to “Ready to Ship”, with your order often dispatched on the same-day or within 24 hours of being placed.

Any “Ready to Ship” orders placed on weekends may not be dispatched until the following Monday.

Our “Ready to Ship” policy does not apply to stated closure dates listed on our “Contact” page or if additional products in your order are not marked as ready to ship.

Some WILLIAM ÉDOUARD pieces are handcrafted to order and most often dispatched between 1 to 3 full business days, however some pieces may require up to 5 to 10 full business days to produce. Wedding and Engagement pieces may require up to 15 full business days to produce.

If required urgently, we may be able to expedite the production time for certain products and offer same-day or 24 hour shipping. Please contact us at to check whether this service may apply to your chosen product/s.

We happily offer a single-use exchange credit (excluding postage fees) on all orders (excluding the Letter Ring Collection, customised signet rings, wedding bands and engagement rings, and any other piece of a customised nature) should you change your mind within 14 days of receiving your purchase. For hygiene reasons, this excludes all earring purchases.

Our full Shipping & Returns Policy can be found here.


Protect your jewellery by removing it when washing your hands, swimming, exercising, cleaning and before applying any kind of personal body product.

Maintain your jewellery’s shine by avoiding contact with agents such as soaps, perfume, lotion, makeup, hair & cleaning products, etc. Always wear your safety backs with your earrings to prevent loss.

If need be, wash your WILLIAM ÉDOUARD jewellery with a gentle hand soap, rinse well and dry completely with a soft cloth. Using jewellery dips or polishes is not recommended as they may contain harsh abrasives.

Store your WILLIAM ÉDOUARD jewellery in its pouch or gift box for safe keeping when not being worn.


Contact us below to discuss creating your perfect engagement ring and we’ll be in touch within 24 hours.

We look forward to collaborating with you and discussing the 4C’s of Cut, Colour, Clarity, and Carat Weight to find your ideal diamond as per your requirements. 

All of our diamonds are conflict-free and ethically sourced in compliance with the Kimberley Process and certified by the Gemological Institute of America (GIA), the preeminent global expert on diamonds and diamond grading.

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