Antique diamond specialists | Since 1976

Private worldwide sourcing

Find My Diamond

Tell us the essential specifications. Imperial Cushions will search privately for an Old Mine Cut, antique cushion or rare natural diamond with the right character.

How private sourcing works

From your brief to a considered choice.

We source natural Old Mine Cut, antique cushion and other rare diamonds for private clients, engagement rings and bespoke jewels. Tell us what matters to you; the options and next steps depend on the individual stone.

  1. Share your brief

    Describe the cut, size, character and budget you have in mind. Add your destination, timing and intended setting. Leave anything you are unsure about open.

  2. Review the stone and its evidence

    We confirm current availability and discuss photographs, movement video, grading reports and known condition details for the stones considered. Ask what supports any antique attribution.

  3. Agree the inspection and written terms

    Confirm the quotation, inspection route, payment sequence, delivery, duties and return eligibility before committing. Independent inspection is arranged by prior agreement for the particular stone.

  4. Plan the next step

    For a loose diamond, agree the delivery arrangements. For a bespoke jewel, discuss the stone's suitability, design, materials, timing and payment stages before making begins.

Diamonds sourced, reserved or acquired specifically for your written request are final sale unless the written transaction terms state otherwise. Confirm the terms for your stone before payment or mounting.

Confidential enquiry

Start your sourcing enquiry.

Name, email and contact permission are required. Stone specifications, budget and timing are optional. Include your destination and setting plans if you know them.

Private updates

New diamonds, recent creations and invitations to view them.