Gemological expertise

Understanding value,
recognising beauty

Accurate appraisals of gemstones, jewellery and antique pieces, carried out with expertise and specialist equipment.

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Appraisals in Genoa

Gemstone and jewellery appraisals

The owners of Bruna Guglielmi in Genoa hold specialist qualifications in appraisal techniques, with training focused on verifying the authenticity of gemstones and jewellery as counterfeits become increasingly sophisticated.

We provide appraisals of gemstones, antique pieces, and gold and silver jewellery, using sophisticated equipment and techniques refined through years of study.

Our modern laboratory equipment gives clients confidence in theauthenticity and therefore the economic value of the pieces submitted for gemological appraisal.

For further information and a free quotation, call Bruna Guglielmi in Genoa or use the form on our contact page.

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Diamonds undergoing a gemological appraisal

Professional precision

Equipment for accurate jewellery appraisals

To appraise precious stones, diamonds and gemstones with the utmost precision, Bruna Guglielmi uses advanced specialist equipment:

  1. 01Dark-field microscope
  2. 02Immersion microscope
  3. 03UV examination techniques
  4. 04Electronic specific-gravity scale
  5. 05Polariscope
  6. 06Refractometer

Qualified analysis

Technical jewellery appraisal

Gemstone and jewellery appraisals are examinations performed by a qualified professional to identify the physical, chemical and aesthetic characteristics of each piece.

A properly completed appraisal includes analysis of the gemological materials and:

  • Types of metal used
  • Manufacturing techniques
  • Types of stone used
  • Economic valuation of the jewellery
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Professional technical appraisal of a piece of jewellery

Expertise, method and precise instruments bring certainty to value.

For gemstone and jewellery appraisals, contact us and request a free quotation.

Request a quotation