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BUYING GUIDE

Common Diamond Buying Mistakes

Almost every regret we hear about a diamond comes back to one of ten mistakes. Here they are, and how to avoid each one.

01

The ten mistakes

In rough order of how often they cause regret:

1. Choosing on carat alone
A big, poorly cut stone looks smaller and duller than a slightly lighter, well-cut one. Size on paper is not size on the hand.
2. Ignoring the cut
Cut decides the sparkle. It is the one grade worth stretching for.
3. Paying for grades you cannot see
D colour and flawless clarity are rare, but G to H and an eye-clean VS2 look white and clean on the hand.
4. Buying without an independent report
Without one, you are taking the seller’s word for everything.
5. Not matching the report to the stone
Check the inscription on the girdle and the measurements against the report.
6. Choosing for yourself, not the wearer
The shape and style they love matter more than the one you would pick.
7. A setting that does not suit the life
A high, delicate setting on someone who works with their hands is a repair waiting to happen.
8. Forgetting the wedding band
Decide early whether a band needs to sit flush, so the two rings can be designed together.
9. Leaving it too late
Made-to-order rings take weeks. Start two to three months before the date.
10. Not insuring it
Insure it from the day it is yours, ideally before the proposal.
02

And one more

Being rushed. A good jeweller explains, shows you the report, and lets you take your time. If you feel pressure to decide on the spot, step back. The right ring will still be the right ring next week.

Questions

What is the biggest mistake when buying a diamond?

Choosing on carat weight alone. A well-cut stone looks larger and brighter than a heavier, poorly cut one.

Should I buy a diamond without a certificate?

Not for a significant stone. An independent grading report is the only reliable way to know what you are buying.

What diamond grades are worth paying for?

Cut above all. For colour and clarity, choose grades that look white and clean to the eye rather than the rarest grades on paper.

How early should I start shopping?

Two to three months before the proposal, to allow time to design, source the stone and make the ring.

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