How Long Before Proposing Should You Buy the Engagement Ring?

Planning the perfect proposal is one of life’s most exciting moments—but when should you actually buy the ring?

At Diamond Lab, we’re often asked this question by nervous partners who want everything to go smoothly: the surprise, the fit, the design, and of course… the timing. Whether you’re planning a grand gesture or an intimate proposal at home, buying the engagement ring at the right time can make all the difference.

This guide will help you plan the timeline for choosing and purchasing the perfect engagement ring—especially if you’re considering a custom design, lab-grown diamond, or moissanite ring crafted in Australia.

Why Timing Matters More Than You Think

You may assume that buying a ring is as simple as walking into a store and walking out with a box—but the truth is, the best rings take time.

From crafting your ring to adjusting the size, or choosing a lab-grown centre stone, a bit of planning will ensure you're not stressed in the lead-up to the big day.

Especially if you want a custom-designed ring (which we highly recommend!), you’ll need time to design, approve, and create it with care.

The General Rule of Thumb

Buy your engagement ring at least 6–8 weeks before your proposal date.

This gives you enough time for:

• Design consultations

• CAD renders and revisions

• Stone sourcing (especially for rare sizes or custom shapes)

• Handcrafting and setting

• Quality control

• Resizing (if needed)

• Delivery or pickup

If your proposal is tied to a specific date—like a birthday, anniversary, or trip—start even earlier (8–12 weeks in advance), just to be safe.

Choosing Between Ready-to-Ship vs. Custom Rings

If you’re short on time, you may be tempted to choose a pre-made, ready-to-ship ring. While this can work in a pinch, most of our clients still go custom because:

• You can design exactly what your partner wants

• It doesn’t have to cost more

• It feels more meaningful and unique

At Diamond Lab, most of our rings are made to order, but we can also help you fast-track the process depending on your needs.

👉 Start a custom ring design

How Long Does a Custom Ring Take?

Here’s a general breakdown:

Total average time: 4–6 weeks

If you’re ordering a lab-grown diamond in a specific shape or carat, or designing something more complex like a Toi et Moi or hidden halo setting, allow extra buffer time.

How Far in Advance Do Most People Buy the Ring?

From our experience at Diamond Lab, here’s what most clients do:

• Planners: Start 2–3 months ahead to explore ideas, research cuts, and design custom rings at a relaxed pace.

• Strategists: Order 6–8 weeks before the planned proposal, allowing for production and resizing.

• Last-Minute Legends: Buy 2–3 weeks before and choose simpler or expedited designs.

There’s no right or wrong—just what fits your timeline.

Should You Buy the Ring Before or After Asking Their Opinion?

That depends on your style of proposal and relationship:

• Surprise Proposal?
  Start early and consider sneakily figuring out your partner’s preferences via friends, Pinterest, or one of their rings for sizing.

• Collaborative Approach?
  Consider proposing with a temporary ring or loose stone and designing the final ring together afterward. Many of our clients go this route, especially with custom rings.

What If You’re Travelling or Proposing Overseas?

If you're planning a destination proposal (like proposing on a beach in Queensland or overseas), order early—at least 8 weeks before your departure. This allows for:

• Travel-safe packaging

• Insurance preparation

• Any final resizing before you leave

We can ship securely across Australia and work with you to make sure your ring arrives well ahead of schedule.

How to Make Sure the Ring Arrives On Time

• Book a consultation early – Even a 15-minute chat can get things moving fast

• Approve your CAD quickly – Delays here can push back the entire schedule

• Communicate your deadline clearly – Tell us your proposal date upfront

• Ask about fast-track options – We sometimes have priority production available

Want to talk timelines with a real human?
👉 Book your consultation now

FAQs: When to Buy the Ring

Q: Can I get a custom ring in under 4 weeks?
A: It depends on the design. Some simpler styles and moissanite stones are quicker. Reach out for an honest timeframe.

Q: What if I don’t know the ring size?
A: We can start the process and adjust sizing later. You can also use our Ring Size Guide.

Q: When is the busiest season for engagement rings?
A: November to February (holiday proposals and Valentine’s Day), so plan earlier during these months.

Q: Should I insure the ring before proposing?
A: Yes. Once the ring is in your possession, arrange insurance to protect it during travel or surprises.

Final Thoughts

Buying the ring too late is one of the biggest proposal stressors—don’t let that be you.

Give yourself enough time to enjoy the journey. Designing your own ring or selecting the perfect style isn’t just practical—it’s meaningful. You’re crafting a piece that will be worn every day, forever.

And at Diamond Lab, we’re here to make sure your timing, design, and moment are all just right.