Time-honoured finery engineered by modern standards

Every Heirest piece starts with your choices and is finished by hand — cut, set and polished with transparency at every step.

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OUR PROMISE

Nothing hidden, everything considered.

Fine jewellery has long been shaped by heritage and occasion: traditions that have kept you at armˇs length from the start.

Heirest resets the standard. Combining modern engineering and complete transparency, we craft timeless silhouettes with precision, clarity and honesty placing each decision where it belongs: with you.

For those who choose to author what others inherit.

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LEARN MORE

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Our goal is for every customer to be totally satisfied with their purchase. If this isn't the case, let us know and we'll do our best to work with you to make it right.
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Our goal is for every customer to be totally satisfied with their purchase. If this isn't the case, let us know and we'll do our best to work with you to make it right.
Tab title

Our goal is for every customer to be totally satisfied with their purchase. If this isn't the case, let us know and we'll do our best to work with you to make it right.
Tab title

Our goal is for every customer to be totally satisfied with their purchase. If this isn't the case, let us know and we'll do our best to work with you to make it right.
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Our goal is for every customer to be totally satisfied with their purchase. If this isn't the case, let us know and we'll do our best to work with you to make it right.

Our values

Transparency

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Accessibility

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Craft

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Co-creation

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Post-purchase care

When is it included?

An HEIREST Statement of Authentication is included with every order.

What does it document?

This document confirms that the piece you received matches the specifications you ordered, to the standards set out on this page. For diamonds of one carat or greater, it is accompanied by an IGI Certificate providing independent third-party verification of stone grades.

The statement documents:

  • Stone type: lab-grown diamond or lab-grown coloured gemstone
  • Stone shape and cut style
  • Carat weight
  • Colour grade
  • Clarity grade
  • Cut, polish, symmetry and fluorescence grades (diamonds of one carat or greater)
  • Metal type and hallmark
  • Setting type
  • Ring size (ring orders only)
  • Order reference and date of issue

Learn More
Authenticity Statement

When is it included?
A third-party Jeweller's Report, issued by the International Gemological Institute (IGI) is complimentary with multi-stone pieces including five-stone rings, eternity bands, tennis bracelets and tennis necklaces.

What does it document?
A Jeweller's Report assesses the finished piece as a whole rather than grading each stone individually. It provides independent, third-party confirmation that the piece matches the specifications you ordered.

  • Total diamond carat weight across the piece
  • Number of stones set
  • Stone type: confirmed lab-grown diamond
  • Overall colour and clarity grades across all stones
  • Metal type and hallmark
  • Setting type
  • Overall piece dimensions

Learn More
Jeweller's Report

When is it included:
All HEIREST white lab diamonds are independently certified by the International Gemological Institute (IGI) for pieces of one carat or greater.

What does it document:
The IGI Certificate grades the individual stone independently of the finished piece. It is issued by the International Gemological Institute and provides full third-party verification that the stone meets the specifications it was selected to.

  • Unique IGI report number
  • Stone origin: confirmed laboratory-grown
  • Shape and cutting style (e.g. Round Brilliant, Oval)
  • Measurements (length × width × depth, in millimetres)
  • Carat weight
  • Colour grade
  • Clarity grade
  • Cut grade
  • Polish grade
  • Symmetry grade
  • Fluorescence grade
  • Girdle thickness
  • A proportion diagram and inclusion plot specific to the stone

Learn More
IGI Certificate

Post-purchase care

Authenticity Statement

When is it included?

An HEIREST Statement of Authentication is included with every order.

What does it document?

This document confirms that the piece you received matches the specifications you ordered, to the standards set out on this page. For diamonds of one carat or greater, it is accompanied by an IGI Certificate providing independent third-party verification of stone grades.

The statement documents:

  • Stone type: lab-grown diamond or lab-grown coloured gemstone
  • Stone shape and cut style
  • Carat weight
  • Colour grade
  • Clarity grade
  • Cut, polish, symmetry and fluorescence grades (diamonds of one carat or greater)
  • Metal type and hallmark
  • Setting type
  • Ring size (ring orders only)
  • Order reference and date of issue

Learn More
Authenticity Statement
Jeweller's Report

When is it included?
A third-party Jeweller's Report, issued by the International Gemological Institute (IGI) is complimentary with multi-stone pieces including five-stone rings, eternity bands, tennis bracelets and tennis necklaces.

What does it document?
A Jeweller's Report assesses the finished piece as a whole rather than grading each stone individually. It provides independent, third-party confirmation that the piece matches the specifications you ordered.

  • Total diamond carat weight across the piece
  • Number of stones set
  • Stone type: confirmed lab-grown diamond
  • Overall colour and clarity grades across all stones
  • Metal type and hallmark
  • Setting type
  • Overall piece dimensions

Learn More
Jeweller's Report
IGI Certificate

When is it included:
All HEIREST white lab diamonds are independently certified by the International Gemological Institute (IGI) for pieces of one carat or greater.

What does it document:
The IGI Certificate grades the individual stone independently of the finished piece. It is issued by the International Gemological Institute and provides full third-party verification that the stone meets the specifications it was selected to.

  • Unique IGI report number
  • Stone origin: confirmed laboratory-grown
  • Shape and cutting style (e.g. Round Brilliant, Oval)
  • Measurements (length × width × depth, in millimetres)
  • Carat weight
  • Colour grade
  • Clarity grade
  • Cut grade
  • Polish grade
  • Symmetry grade
  • Fluorescence grade
  • Girdle thickness
  • A proportion diagram and inclusion plot specific to the stone

Learn More
IGI Certificate

Our process