Buying a Loose Diamond to Have It Set by a Jeweller

Ask the particular jeweller. Acceptance of outside stones is a business policy, and the answer may depend on the stone, design and work required. Do not assume that choosing a local shop guarantees it will accept your diamond.

Explain whether you want a new mounting, a custom design or a diamond fitted into an existing ring. Share the laboratory report, clear images and dimensions. Request a preliminary opinion, followed by inspection of the actual stone before the work is approved.

Ask who will carry out the setting and whether the stone will leave the shop for an outside workshop. Relevant setting experience matters alongside gemological knowledge. Someone assessing diamond quality and someone making the mounting may perform different roles.

GIA discusses buying a loose diamond before choosing its mounting in its diamond buying tips. Treat this as a planned commission: confirm the setter and requirements before committing to the stone.

These stages can overlap during discussions, but avoid approving irreversible work before the diamond has been checked and accepted. If the purchase includes a return period, arrange the inspection early enough to use it according to the seller’s actual terms.

Describe how you want the finished jewellery to look and feel. For a ring, cover the outline, metal, ring size, preferred height and whether another band will sit beside it. For a pendant or earrings, explain the intended proportions and how the piece should hang or sit.

Bring reference images and ask what features the jeweller can reproduce or adapt. Request a side view as well as a top view when reviewing a drawing, sample or computer design. A ring that looks right from above can still be taller or bulkier than you expected.

Tell the jeweller about the wearer’s routine. Discuss comfort, cleaning access and protection around vulnerable areas. GIA’s diamond protection guide explains how settings can protect the girdle, points and corners.

Uniglo’s diamond shapes guide can help you compare outlines before requesting a shortlist. Once you have a direction, ask the setter what measurements the proposed mounting can accommodate.

A setting described for a particular carat size does not establish that every diamond of that weight will fit it. Ask the jeweller to assess the actual length, width and depth, together with the outline and relevant girdle features.

For example, two diamonds described as 1.00 ct can have different dimensions. One may suit the intended head while another requires a different head or modification. Have the jeweller make that assessment instead of relying on a nominal size label.

For elongated shapes, discuss orientation and the position of the ends. For shapes with corners, ask how those areas will be supported and protected. The jeweller should consider the actual stone’s condition and geometry when deciding how to fit it.

An existing ring needs its own assessment. Ask whether it can be used as it stands, needs a new head or would require more substantial work. Get the proposed changes and cost before buying a diamond specifically for that ring.

Decide whether natural or lab-grown origin matters to you, then communicate that requirement to both the seller and setter. Uniglo’s lab-grown vs natural diamonds guide explains the distinction. Require the origin and any reported treatments to be disclosed for the particular stone.

Review the actual diamond’s images or video alongside its report. Compare appearance in ordinary lighting and at a realistic displayed size. A report gives important documented information, but it does not replace your preference for the stone’s visible colour, shape and light pattern.

When shortlisting, share the same report and images with the setter. Ask what needs to be checked in person before approval. Keep a preliminary response separate from final acceptance of the actual diamond.

For current options, browse Uniglo’s natural loose diamond inventory or lab-grown loose diamond inventory. Request availability, applicable order requirements, imagery and a dated quotation for any stone you are considering.

Read the complete report, including its description, dimensions, weight, comments and any inscription information. IGI’s natural diamond report guidance explains the fields provided for that service. Other services and report formats can differ, so use the document accompanying your actual diamond.

For a GIA report, GIA Report Check confirms whether the document information matches GIA’s archived record. Checking a record online and confirming the identity of the physical diamond are separate tasks.

Ask a qualified jeweller or gemologist to compare the stone with its documentation using appropriate examination. If an inscription is present, record it as part of that process. Ask what testing is performed and whether laboratory verification is needed if something is unclear.

An inscription is helpful, but it should not be treated as a complete identity test on its own. GIA has documented counterfeit inscriptions, which is why matching the stone and report involves more than reading a number.

Uniglo’s diamond certificates guide provides further report-reading background. Keep the original documents and purchase invoice for the handover and your ownership records.

Have the loose diamond examined for existing chips, wear and relevant surface-reaching features. Ask the setter to record any concerns before work begins, especially around the girdle, points or corners that the design will engage.

GIA explains that diamond can chip and that very thin girdle areas and certain inclusions deserve attention in its diamond chipping guide. The assessment should concern the individual stone, rather than an assumption based only on its shape or clarity grade.

If a concern is found, pause the commission and clarify the options with the seller and setter. Ask whether the stone is unsuitable for the proposed design or whether another mounting can accommodate it. Do not approve an alteration to the diamond itself without understanding and agreeing to that separate work.

Documenting condition provides a useful starting record for both parties. It does not guarantee that damage cannot occur, or automatically establish responsibility for a later problem. That is why the work terms also need to be clear.

Ask the diamond seller when any return period begins, how returns are handled and what conditions apply. Confirm how setting, removal from packaging, inscription or other alterations affect eligibility. Obtain the answer for your specific order rather than relying on a general marketing statement.

Book the independent inspection around those terms. Receiving the diamond near the end of a busy jeweller’s waiting list can leave little time to resolve a concern. Share the inspection plan with both parties before ordering.

Keep the diamond purchase terms separate from the mounting commission. Ask the jeweller which design or manufacturing stages require a deposit and what happens if the stone is rejected during inspection. Agree when fabrication may start.

If the diamond seller and setter suggest different technical conclusions, ask for the issue to be described clearly and supported with relevant measurements or images. Resolve it before authorising work that changes the stone or mounting.

Request a quotation for your particular commission. The scope can range from fitting a suitable stone into an existing mounting to making an entirely new piece. A headline setting fee alone may not describe the full job.

Ask whether any additional fee applies to a customer-supplied stone and whether inspection could change the quotation. Confirm the final approved price before authorising the job. If revisions are likely, establish how they will be priced and approved.

Compare the complete diamond-plus-setting cost with other suitable offers. Buying the components separately does not guarantee a lower finished price. It can still be the right choice if it gives you the stone, design and local service you want.

Discuss how the jeweller handles customer-owned stones during storage, setting and any transfer to another workshop. Ask what happens if loss or damage occurs and obtain the applicable terms in writing before leaving the diamond.

If you have insurance or intend to arrange it, ask the insurer specifically about an unset diamond and the stages of the commission. Confirm storage, transit and setting cover where relevant, including any limits or conditions. Do not assume that a policy for a finished ring covers every earlier stage.

GIA’s diamond buying and insurance guidance advises checking whether unset gemstones are covered. Ask what documentation the insurer requires, and distinguish a laboratory grading report from a monetary appraisal.

For shipping, agree the approved transport method and who arranges it. Ask the carrier and relevant insurer whether the proposed shipment and declared value are covered under the actual service. Keep dispatch and receipt records; do not infer gemstone cover from a generic parcel description.

When the jeweller receives the stone, request a dated intake record identifying it and the agreed work. Review it together before signing or acknowledging receipt. Attach the report reference and relevant photographs where practical.

These are suggested information fields, rather than a substitute for the jeweller’s full service agreement. Ask the jeweller to distinguish measurements taken at intake from information copied from the report. That makes the record easier to interpret later.

Keep your copy and the agreed contact details. If the design or scope changes during the job, request an updated approval covering the change before it is carried out.

Ask for an estimated completion date tied to the actual scope and workshop schedule. Include time for inspection, design approval, manufacturing and finishing. If the jewellery is for an event, share the required collection date before committing.

Review proportions, orientation and profile at the approval stage. Confirm the ring size and ask how the finished setting will sit beside any intended wedding band. A drawing should be explained in terms of the actual dimensions you will receive.

Agree which features can still be changed after approval and how additional work is handled. If the completion date moves, request an update before making collection or delivery arrangements. Do not treat an estimated date as a guaranteed commitment unless that has been expressly agreed.

Ask the jeweller to review the finished piece with you. Check the agreed design, fit and orientation, and have the jeweller demonstrate that the setting is secure. Raise any visible concerns before accepting the completed job.

Discuss how the diamond was checked against the intake record. If the inscription remains accessible, ask to view it under suitable magnification. If it is obscured by the setting, ask what other documented identification checks were used; obstruction alone does not prove that something is wrong.

Keep the loose-stone report and any separate finished-jewellery assessment. IGI explains that mounted grading is limited by the setting. A mounted assessment and the original loose-stone report therefore need to be read according to their respective scope.

Request the final invoice, care instructions and workmanship terms. Ask how future inspections, repairs and resizing will be handled, including whether work by another jeweller affects those terms. Update any insurance arrangements to reflect the finished item where required by your policy.

Contact Uniglo Diamonds with your preferred origin, shape, approximate dimensions, budget and delivery destination. If you already have a setter, include the mounting requirements or the stone reference they have reviewed.

Ask for the specific diamond’s report, imagery, current availability and quotation, alongside the applicable purchase and delivery terms. Confirm separately that your local jeweller accepts the stone and proposed work before placing the order.

• Diamond Girdle Thickness: What Buyers Should Check
• What Is an Eye-Clean Diamond? A Viewing Checklist
• Carat vs Total Carat Weight: CT, CTW and CTTW