Jewellery workshop · Hatton Garden, London

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Stone Setting & Gemstone Care

Opal Jewellery at the Workshop: What Retailers Should Disclose

An opal jewellery workshop assessment should begin with what is known about the stone and the complete piece.

Pliers, tweezers and a mallet on a jewellery bench, in black and white

An opal jewellery workshop assessment should begin with what is known about the stone and the complete piece. A request to polish the ring can involve an opal that remains close to the work, and a photograph may not reveal its construction, treatment or existing condition.

For retailers, the aim is to pass on reliable information and obtain a specific proposal. Do not promise that the opal can remain in place or that every visible mark can be removed before the workshop has assessed it.

Discuss a trade workshop job

Planning repairs and alterations work? Apply for a trade account or call the workshop to discuss the brief.

Supply the available identification

Include reports, supplier descriptions and any known information about treatment or assembled construction. Clearly distinguish a documented fact from a customer's recollection. If the construction is unknown, describe it as unknown rather than assuming a solid untreated stone.

Photograph the front, sides and accessible reverse. Keep any detached parts with the job and identify their relationship to the piece.

Record condition before cosmetic work

Note visible cracks, surface marks, loose settings or changes reported by the owner. Avoid cleaning the item merely to improve the intake photographs. The workshop needs to see the received condition and decide on an appropriate next step.

GIA's opal care guide warns that heat and sudden temperature changes can damage opal and recommends warm soapy water for cleaning. Those material facts do not determine a complete repair method for every mounted piece.

Confirm the scope before work starts

Supply the relevant photographs, measurements and known material details. Ask the workshop to assess the proposed work.

Define the metal work separately

State whether the request concerns a shank, claw, bezel or surface finish. Identify the distance and relationship between that area and the stone. Ask whether removal is proposed and what risks or additional work it introduces.

The bezel design guide is relevant where the opal will be remounted. The new setting should be assessed against the actual stone rather than only its nominal shape.

Agree the route before making promises

The workshop may need further identification, a revised scope or specialist input. Record who authorises those steps and whether the current enquiry covers assessment only. A conditional proposal is more useful than an unsupported assurance of a routine repair.

At return, retain the work description and care advice with the customer record. Explain any remaining limitations in terms of the actual piece.

Keep the information with the jewellery

Identification, condition and approval should travel together through the job. That continuity helps the retailer explain what was assessed and what the completed work does and does not establish.

Bring a clear brief to the workshop

For trade enquiries, apply for an account or call A&M to discuss the next step.

Frequently asked questions

Can the opal stay in the setting during repair?

That requires assessment of the construction and proposed operation. It should not be promised from a photograph or the gemstone name alone.

Does a workshop assessment identify every treatment?

Do not assume so. Ask what identification has been performed and whether a gemmological report or further specialist examination is needed.

Related reading

For service details, see repairs and alterations at A&M.

Workshop support

Discuss the practical requirements with A&M.

Send the item details, condition, required result and relevant measurements for an informed initial assessment.

Contact the workshopApply for a trade account