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Lifetime Warranty*

Sienna — Princess Solitaire Moissanite Engagement Ring - Ready To Ship

Sienna — Princess Solitaire Moissanite Engagement Ring - Ready To Ship

Regular price $1,350.00 AUD
Regular price Sale price $1,350.00 AUD
Sale Sold out

Free Registered Discreet Shipping. Expedited, available for a fee. See below.

Metal Colour

Not sure? Use our size guide or we'll confirm with you after ordering.

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  • Complimentary shipping, insured and tracked
  • Lifetime stone warranty and free polishing
  • Free resize within 3 months of purchase
  • Hand-set in Melbourne with certificate of authenticity

Questions about this ring? Book a 15-minute consultation

Book a free consultation

See this ring in our Melbourne showroom or via video call before you decide.

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Description

The square cut that brings sparkle to a modern silhouette

Sienna is a princess cut moissanite in a four-claw V-corner solitaire. The princess is the only square cut that genuinely sparkles like a round — it's a modified brilliant with crisp 90° corners and 58 facets that mirror the round's fire pattern. If you've always loved the geometry of a square stone but didn't want to give up the brightness, this is the answer.

Sienna is the cleanest design in the princess family. The claws are V-shaped specifically to protect the corners — a princess's sharp points are its most vulnerable feature, and a standard round claw won't shield them. For a different square step-cut feel, look at Margot (asscher trilogy). If you'd prefer a softer square, the elongated cushion on Hadley is the next step.

Stone quality

D–E colour, VVS clarity, GRC certified. Princess cuts can show colour in the corners if the stone isn't graded carefully — we don't set anything below D–E so the white stays clean. Moissanite hardness is 9.25 on the Mohs scale, which is what makes it sensible for daily wear over decades. Centre size from 1.00ct (5.5mm) through 2.00ct (7mm) in the dropdown, with larger sizes available on request. Metal: 9k, 14k, or 18k gold in white, yellow, or rose, or platinum.

Workshop details

Ready-to-ship in the photographed configuration, or made-to-order in 4–6 weeks (3 weeks express, +$400). Free resizing within the first 3 months. Lifetime stone warranty, free re-polishing for life, every ring made in our Melbourne workshop. Read the 2026 buying guide if you're still weighing cuts, or compare the full princess cut collection and the broader solitaire range.

Shipping

  • Standard: 3-6 weeks to craft, then 1-4 business days Australian express
  • Express: 3 weeks to craft for an additional $400
  • International: 1-2 weeks after dispatch

Free shipping, fully tracked and insured. Ships in plain, unbranded packaging. Need a specific date? Contact us before ordering.

Returns

Returns accepted within 30 days when in perfect, unworn condition, with original packaging and certificate of authenticity.

Lifetime stone warranty. Your moissanite or lab-grown diamond is covered for life against loss of fire, sparkle, or clarity. Crafting faults repaired free.

Daily wear damage (impact, snagging, abrasion) repaired at cost. Book a free video call or studio appointment before ordering if you have concerns.

Sizing

Not sure of your size? Email for a free ring sizer, or visit any jeweller (most size for free). For surprise proposals, a close friend or family member can often help.

One free resize within three months of purchase. Up to 4 sizes (2 for stones set into the band). Takes 2-5 business days. Return shipping both ways included. Melbourne locals can drop off at the Southbank studio.

Crafting

Every ring is hand-set in our Melbourne workshop by generational jewellers. Made to order in 3-6 weeks, or 3 weeks express for an additional $400.

Moissanite is GRC certified at D-E colour, VVS clarity. Lab-grown diamonds are IGI certified for cut, colour, and clarity. Every order offsets one tonne of carbon. All resizing and repairs handled in the same Melbourne workshop.

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Princess Solitaire Moissanite Engagement Ring - Ready To Ship - Moissanite Engagement Rings

Sienna — Princess Solitaire Moissanite Engagement Ring - Ready To Ship

Regular price $1,350.00 AUD
Regular price Sale price $1,350.00 AUD
Sale Sold out
Book

DETAILS

Specifications

Stone Type Moissanite
Centre Stone Grade DE VVS
Selected Size 5.5x5.5mm - 1.00ct
Metal 9K Solid Yellow Gold
Band Width 2 mm
Certificate GRC certified
Made In Melbourne, Australia

PAIRS PERFECTLY WITH

Pair the Sienna — Princess Solitaire Moissanite Engagement Ring - Ready To Ship with

Couples who buy this ring often choose one of these wedding bands to match.

  • Guthrie Jewellery moissanite engagement ring

    Start With A Deposit

    Select your ring details and proceed to the final checkout screen. Select bank transfer as payment method.

FAQ

How long until my ring arrives?

Standard processing is 3-6 weeks for made-to-order rings, plus 1-4 business days for Australian Express shipping (1-2 weeks internationally).

Express order processing is available for an additional $400, which guarantees dispatch within 3 weeks.

If you need delivery for a specific date, contact us before ordering and we will confirm whether your timeline is workable.

What does the lifetime warranty cover?

Every ring includes a lifetime warranty on the stone. Your moissanite or lab-grown diamond is covered for life against loss of sparkle, fire, or clarity. Moissanite does not go cloudy, dull, or change colour over time.

The warranty also covers any faults caused by our crafting, such as a stone loosening from a setting that was not built correctly. Repairs covered by the warranty are completed at our Melbourne workshop, free of charge.

It does not cover damage from heavy impact, snagging, or general wear-and-tear, since these are caused by daily use rather than a fault in the make. We can repair these at cost.

Can I customise the metal, carat, or setting?

Yes, almost every ring in our collection can be customised:

  • Metal: 9k, 14k, or 18k gold (white, yellow, or rose), or platinum
  • Centre stone size: 1ct to 8ct standard, larger sizes on request
  • Setting: bezel, prong, halo, hidden halo, and more
  • Band: plain, pavé, half-pavé, or with side stones

For fully custom designs, book a free consultation in our Melbourne showroom or via video call. Custom-made rings take 4-6 weeks to complete.

What if I get the ring size wrong?

Resizing is fully complimentary, including return shipping both ways.

  • Most rings can be re-sized within 4 sizes
  • Rings with stones set into the band can be re-sized within 2 sizes
  • Resizing takes 2-5 business days at our Melbourne workshop

If you are not sure of the size, we can post you a free ring sizer. Most jewellers will also size for free, no purchase required. For a surprise proposal, a friend or family member who knows your partner can often find out the size discreetly.

What if my partner doesn't love the ring?

Each ring is made specifically for that order, so we do not offer change-of-mind refunds on custom-made rings. We can typically rework the ring (change the setting, swap the band style, adjust the stone size) for a fee that varies by the change.

For ready-to-ship rings, we look at change-of-mind requests case-by-case.

The best way to reduce risk is to book a free video call or showroom appointment before ordering. Many couples do this and it costs nothing.

Are the stones certified?

Yes. Every centre stone arrives with a digital certificate of authenticity:

  • Moissanite: graded by GRC at D-E colour and VVS clarity
  • Lab-grown diamonds: IGI certified for cut, colour, and clarity

The grading scale is the same as for mined diamonds. D-E colour is the highest grade (essentially colourless) and VVS clarity means no impurities visible to the naked eye. Stones can be verified by any independent gemmologist or third-party lab.

Can I see the ring in person before I buy?

Yes. Our Southbank showroom (Level 7, 80 Dorcas Street, Melbourne) is open by appointment. Appointments are private. Just you, your partner if you are shopping together, and one of our jewellers.

For couples elsewhere in Australia or internationally, we offer free video consultations. We will show you rings on camera and walk through the design process.

Both can be booked from the Book Appointment page. There is no obligation to buy, and consultations are always free.

How do you ship the ring?

Every ring ships in plain, unbranded packaging. The ring inside arrives in our presentation box.

  • Free registered shipping with tracking and insurance
  • Australian Express: 1-4 business days after dispatch
  • International: 1-2 weeks after dispatch
  • Tracking link emailed when dispatched

Every order offsets one tonne of carbon, contributing to our annual emissions reduction commitment.

Before and after comparison of a landscape with greenery and hills.

1 Tonne Carbon Offset

For every engagement ring sold we offset by donating to greenfleet to offset one tonne of carbon per ring. This goes towards reforestation of Australian land. You can learn more about this on our climate commitment page.