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Wednesday 5 August 2026 Bengaluru, Karnataka
Late edition

Hexahorizon

Hexahorizon Global Private Limited · Karnataka, India · Established 2026
Vol. I  ·  No. 1 Six divisions · Free Enquire

Home  ›  The six businesses  ›  Diamonds & Gemstones

03 · Commodities

Diamonds & Gemstones

You tell us the stone you want. We find it, and we prove what it is.

In short

  • We source diamonds and coloured stones to your written brief.
  • Every stone comes with a certificate from a testing laboratory.
  • We always state clearly whether a stone is natural or lab-grown. Always.
  • You see the options and the certificates before you pay.

Who this is for

Jewellers and jewellery manufacturers who need a steady supply, and private buyers looking for a particular stone for a particular piece.

What we help with

Diamonds — natural and lab-grown

We can source both. A natural diamond formed in the earth over a very long time. A lab-grown diamond is made in a machine — it is chemically the same material, but it costs far less and it is a different market.

Both are legitimate. What is not legitimate is selling one as the other. Every stone we supply is labelled, certified and priced for what it actually is.

Coloured gemstones

Rubies, sapphires and emeralds, sourced against your specification. Most coloured stones are treated in some way to improve colour or clarity; where that is the case, the certificate says so and we pass it on to you.

Certification

A certificate is a report from an independent laboratory describing the stone: what it is, its weight, its measurements, its colour and clarity grades, and any treatment it has had. We do not supply a stone without one.

The laboratories we work with are being confirmed. [to be confirmed]

Buying to a brief

Tell us the shape, the colour, the clarity, the carat weight and your budget. We search against that brief and come back with real options — with the certificate for each one — rather than showing you whatever we happen to have.

Supply to the trade

For jewellers and manufacturers who need repeat supply against a specification, we can work on a standing brief instead of stone by stone.

How it works

  1. Your briefShape, colour, clarity, carat and budget — written down, so there is no confusion later about what was asked for.
  2. We searchWe go and look for stones that match. If nothing matches your budget, we will tell you that rather than pushing something close.
  3. Options with certificatesYou get real options, each with its laboratory report, and a clear note of whether it is natural or lab-grown.
  4. You chooseNothing is bought until you say yes to a specific stone at a specific price.
  5. Insured deliveryThe stone is shipped insured, with its certificate and an invoice that describes it exactly.

What we do not do

  • We do not supply a stone without its certificate.
  • We do not describe a lab-grown stone as natural, or leave it unstated.
  • We do not deal in stones whose origin we cannot account for.
  • We do not give investment advice. Gemstones are not a savings plan.
  • We do not quote a price before we know exactly what you are asking for.

Common questions

What is the difference between natural and lab-grown?

A natural diamond formed underground over a very long time. A lab-grown one is made in a machine in a few weeks. To the eye they look the same and to a tester they are the same material — but natural stones cost much more, because they are rarer. A laboratory can tell them apart, which is why the certificate matters.

How do I know the certificate is genuine?

Major laboratories let you check a report number on their own website. We will give you the number so you can check it yourself, without us in the middle.

What does "treated" mean?

Many coloured stones are heated or filled to improve how they look. It is normal and legal, but it affects the value — so it must be disclosed. If a stone we offer is treated, the certificate will say so and so will we.

Can I return a stone?

Our returns and buy-back terms are being finalised and will be published here in full before we trade. [to be confirmed]

Do you deal in conflict diamonds?

No. Rough diamonds are covered internationally by the Kimberley Process, which is designed to keep conflict stones out of the trade. Our registration status under it will be published here. [to be confirmed]

Where we are now Sourcing stones to order.

This division is new and works to order rather than from a large held stock. We are not going to quote carat volumes we have not traded. The certificate on the stone in front of you is the only claim that should matter.

Tell us what you are looking for.

Shape, colour, clarity, carat and budget. We will come back with real options and their certificates.

Contact this division
Hexahorizon · A company publication Karnataka, India Wednesday 5 August 2026