Diamond upgrade program

Go bigger. Keep the story.

Ready for more sparkle? Trade your Don Key diamond up to a bigger one. We take your stone back, you only pay the difference.

The price difference+$50 upgrade fee

Diamonds only. A new setting, if your bigger stone needs one, is quoted separately at a discount.

How it works

Four steps to a bigger stone

Tell us which piece you have and the size you want. Use the estimate below to see your number first.

Ship your piece to us insured, with your certificate or order number. Or drop it off on Hill Street.

We check your stone, then set your new, bigger diamond. If it needs a larger setting, we quote that at a discount first.

Back to you polished and insured, with a new Certificate of Authenticity for your upgraded stone.

Upgrade estimate

Your piece

The size you have

The size you want

Your size today

New size

Price difference

Upgrade fee$50

Diamond upgrade

+ New setting if needed, quoted at a discount. Setting prices follow the gold market, so we confirm yours when you request.

The fine print, in plain words

For diamonds bought from Don Key. Bring your certificate or order number.
Upgrades go up in size, within the same style of piece. Want a new style? We'll quote it as custom.
You pay the price difference at today's prices, plus a $50 upgrade fee.
Gold isn't part of the credit. We reuse your diamond, not the setting.
If the bigger stone needs a new setting, it's quoted separately at a discount. It depends on the gold price that day.
Stones must be free of chips or damage. We check every stone before we confirm your quote.
Studs upgrade as a pair. Pendants upgrade one stone at a time.
Your upgraded stone ships with a new Certificate of Authenticity and lifetime care.

Questions