Appraisal and certification

We offer free services: Appraisal and identification  of precious and semiprecious stones. Appraisal, grading and identification of diamonds. Identification of synthetic minerals, imitation and detection of treatment - such as painting, heating, irradiation and other techniques for improve the appearance of stone. Tips when buying and selling gems. If you have any questions feel free to send us pictures on for subsequent identification and assessment, visit us at our office. We offer: Certification of gemstones - 300 kn  


We offer the service of processing of precious and semi-precious stones from your or our materials. Service cutting, grinding, polishing and drilling of minerals depends on the type, thickness and hardness of minerals and the price of processing are negotiable. Among the many services we offer, pointed to Development cabochon of precious and semi-precious stones Restore shine your jewelry of coral and other precious minerals Repairing of damage or broken minerals in your jewelry Development opals from rough materials For cutting precious stones we possess blades of 0.2 mm You use two cutting speeds - 900 and 1800 rpm. For drilling we use several sizes of drill.


For all the crystals, minerals, fossils, and gemstones we guarantee that they are 100% natural.
Statement of authentic of gemstones

Our products can be ordered by online store
or through e-mail :
or you can visit us at our shop.

Simple guidelines for ordering

Terms and conditions/return policy/privacy policy



Orders are sent on the next work
day by Croatian Post.

International shipments are charged according to
weight and destination.
Costs for shipments are displayed
after your choice of country.

We deliver our products worldwide.

Charge for shipment in
Croatia is 25.00 Kuna.



Payment by bank accaunt

Payment by PayPal

Cash on delivery possible only in Croatia

In case you want to make a payment by PayPal  you need to change currency in EUR or USD

Select currency


Mineral expo
Tratinska 38, 10 000 Zagreb

Open: Mondays to Fridays from 09 to 20 h, Saturdays from 10 to 18 h

Phone: 00385 1 5812-579

Mob: 00385 (0)95/902 2779

MineralExpo | Međunarodni sajmovi dragog i poludragog kamenja