Among the most-loved pieces in our collection is the three-stone engagement ring. Elegant and symbolic, a centre diamond is flanked by two side stones—celebrating the past, present, and future—crafted to be worn and admired for a lifetime.

What Makes Three-Stone Engagement Rings So Special?

A three-stone (trilogy) ring frames the centre diamond with matched side stones, adding presence, balance, and extra sparkle. The design enhances the centre stone’s brilliance and can make it appear larger without overwhelming the silhouette.

At House of Diamonds, proportion is everything. We hand-match side stones for cut, colour, and clarity, and set them at a height that flows into the band for a refined, comfortable profile.

The Craftsmanship Behind a Three-Stone Ring

Precision is key: calibrated side-stone pairs, clean prong or bezel work, and seamless shoulders that taper gracefully to the band. Our setters align each stone for symmetry and secure wear, creating continuous lines of light from every angle.

Explore Our Range

Discover classic combinations like round with round sides, oval with pears or rounds, emerald with trapezoids or baguettes, and cushion with half-moons. Choose natural or lab-grown diamonds, your metal (18K yellow, white, rose gold or platinum), and optional pavé or plain bands.

Why Choose a Three-Stone Ring?

A three-stone engagement ring offers meaningful symbolism, versatile styling, and elevated sparkle. It pairs beautifully with straight or contoured wedding bands and can be tailored for low-profile everyday comfort or a more architectural look.

The House of Diamonds Promise

Handcrafted in Sydney with certified diamonds (GIA or IGI), our rings are built for beauty and longevity. Enjoy tailored guidance, custom design options, and aftercare to keep your trilogy ring shining for years to come.

Ready to design yours? Book a consultation or visit our Sydney showroom to explore three-stone engagement rings up close.

FAQ: Three-Stone Engagement Rings

What do the three stones symbolise?

Commonly “past, present, future,” but many couples choose meanings that suit them—love, friendship, fidelity; or milestones shared together.

How big should the side stones be?

Tastes vary, but a classic look is each side stone at ~55–70% of the centre’s width (by mm). We’ll mock up options so you can compare proportions.

Which shapes pair well together?

Round with rounds or pears, oval with rounds or pears, emerald with trapezoids/baguettes, cushion with half-moons—many combinations work beautifully when proportions are balanced.

Will a wedding band sit flush?

Usually yes with a low-profile head and tapered shoulders. Higher or wider heads may suit a gentle contour band—we’ll advise based on your design.

Prong or bezel side stones?

Prongs maximise light and keep a delicate look; bezels add modern sleekness and extra protection. Both are secure when properly made.

Can a three-stone ring be resized?

Typically within 1–2 sizes, depending on the band and any pavé. Plain bands are especially resize-friendly.

Natural vs lab-grown side stones—any difference?

Visually, no. We hand-match melee and sides to your centre stone for a seamless look in either choice.

How do I clean a three-stone ring?

Soak in warm water with mild dish soap, gently brush around/under the settings with a soft toothbrush, rinse and pat dry. Ultrasonic is fine for most diamonds; ask us if coloured stones are present.

Explore more styles: Classic Solitaire • Halo Engagement Rings • Hidden Halo • Pavé Band Rings • Cathedral Setting Rings