Diamond sourcing by specification
Diamond and gemstone sourcing by specification.
Search a dynamic catalogue by shape, carat, colour, clarity, laboratory and budget. Save the selection as a link, share it with a client and open the exact stone with its current data.
The platform in action
See the full range. Narrow it to the right stone.
One workspace brings together filters, imagery, specifications, grading reports, price and estimated dispatch. This is the actual DiamondTrade interface, not a conceptual mock-up.
Explore the platform
You do not need a vast inventory to offer the right stone.
DiamondTrade turns a precise client brief into a structured shortlist. Work with a current catalogue, comparable specifications and a link that preserves the exact criteria.
Open the sourcing portalThe sourcing desk
From brief to shortlist in one workflow.
The platform follows the way a stone is actually selected: criteria first, then comparable data, report review and confirmation of the individual offer.
Specification-led search
Category, shape, carat, colour, clarity, laboratory and budget become precise filters.
Comparable data
Stones follow a consistent structure so specifications, media and price can be compared without guesswork.
One-link shortlists
Filters and exact stones can be sent directly to a client or colleague and opened in a clean browser.
Confirmation before fulfilment
Current availability, price, documentation and estimated dispatch are checked for the selected stone before the order proceeds.
Sourcing process
How the process works.
Start independently in the catalogue or send a brief when the required combination is particularly specific.
Define the fixed specifications
Include category, shape, carat range, colour, clarity, preferred laboratory, budget, intended use, destination and deadline.
Build the shortlist
Narrow the results by the decisive filters and leave a sensible range where close alternatives are acceptable.
Review the stone, not only the image
Compare the 4Cs, measurements, polish, symmetry, fluorescence, price per carat, available media and grading report.
Share the exact selection
Copy the search or stone URL. The recipient sees the same criteria without a login or previous browsing history.
Confirm the commercial details
Availability, price, tax treatment, documentation and estimated dispatch are confirmed for the individual order.
Source with context
The data behind a better shortlist.
“Certificate” is a common consumer term, while independent laboratories issue grading or identification reports. The report matters, but it does not replace reviewing the individual specifications and available media.
Compare measurable specifications
Carat describes weight, colour and clarity are grading categories, and cut affects the way light is handled. Measurements, polish, symmetry and fluorescence add context.
Browse natural diamonds →Natural or lab-grown
Both are diamonds, but they differ in formation and origin. Choose according to origin preference, required specifications, intended use and current pricing.
Browse lab-grown diamonds →Verify the grading report
Check the issuing laboratory, report number, natural or laboratory-grown origin, the 4Cs, measurements and disclosed treatments when those details are supplied.
Report questions →Price and price per carat
Price per carat helps compare similar stones. Final VAT, currency and shipping depend on destination, customer type and the confirmed order conditions.
Read the terms →Images and 360° video
Media helps assess visual behaviour when supplied for the individual stone. It should be reviewed alongside the specifications rather than used as a substitute for them.
Open the catalogue →From stone to finished jewellery
Start with the stone that matches the brief, then connect it to the right design, measurements and construction for an engagement or custom ring.
Custom rings →FAQ
Before you confirm the stone.
Concise answers about the sourcing process, grading reports, dynamic availability, pricing and dispatch.
How do I submit a brief for a specific diamond?
Use the catalogue to set category, shape, carat, colour, clarity and laboratory, then share the resulting link. For a particularly specific search, send the criteria, budget, intended use, destination and deadline through the contact page.
Do all stones have a certificate or grading report?
Documentation is not identical for every stone. The product page shows the laboratory, report number and a link to the report when those details are supplied for the individual offer.
Can I filter by GIA, IGI, HRD or GCAL?
When the laboratory is included in the offer data, it can be used as a filter. Always compare the report number and specifications with the original grading report.
How do I choose between natural and lab-grown?
Both types are assessed using measurable characteristics, but they differ in origin. The decision depends on origin preference, required specifications, intended use and current pricing rather than a universal claim that one is better.
Is DiamondTrade a diamond exchange?
DiamondTrade is an online catalogue and sourcing platform, not a regulated exchange or auction. It supports searching and comparing current offers and submitting a precise sourcing brief.
How are price and availability confirmed?
The catalogue uses current supplier data, but unique stones may be reserved or sold. Availability, price and commercial conditions are confirmed for the exact offer before final fulfilment.
How are VAT, duties and shipping calculated?
Final tax treatment and shipping depend on destination, customer status, the applicable regime and the selected offer. An estimated dispatch date is not a guaranteed delivery date.
What happens if the stone is no longer available?
An unavailable message appears after a confirmed check. The filters remain in place and the platform returns to current similar offers so the shortlist can continue.
Can the selected stone be used in a custom ring?
Yes, when its measurements and technical requirements suit the chosen design. Send the stone URL and details of the intended piece so compatibility and fulfilment can be reviewed.
Set the criteria. Start the shortlist.
Enter the catalogue directly or send a precise brief with budget, deadline and intended use.
