A gem store with its own laboratory, in Bratislava.

Natural stones to buy, and a gemologist — Olena Rybnikova, PhD — to tell you exactly what any stone is.

Laboratory

3-5 day turnaround

€70

Initial Consultation

Purchase advice

  • +Verbal consultation and recommendations
  • +Quick market research
  • +Visual examination

€140

Standard Examination

Verifying gemstone identity and quality

  • +Standard gemological examination
  • +Raman Spectroscopy identification
  • +Treatment detection
  • +Authentic certificate of analysis
  • +All Initial Consultation services included

€300

Comprehensive Analysis

High-value stones, collections, insurance

  • +Infrared Spectroscopy
  • +Ultraviolet-Visible-near-Infrared Spectroscopy
  • +Fluorescence Spectroscopy
  • +Origin determination (when possible)
  • +All Standard Examination services included
Book an examinationSee real certificates

Store

17 natural stones
Grossular GarnetGrossular GarnetNewest
  • Amethyst PairAmethyst PairIn stock
  • Amethyst Parcel 15 pcsAmethyst Parcel 15 pcsIn stock
  • Topaz parcel 15 pcsTopaz parcel 15 pcsIn stock
  • Amethyst Parcel 15 pcsAmethyst Parcel 15 pcsIn stock
  • Emerald BerylEmerald BerylIn stock
  • Grossular GarnetGrossular GarnetIn stock
  • AquamarineAquamarineIn stock
  • SpinelSpinelIn stock
  • EmeraldEmeraldIn stock
  • SapphireSapphireIn stock
  • CitrineCitrineIn stock
  • AmethystAmethystIn stock
  • IoliteIoliteIn stock
  • SapphireSapphireIn stock
  • SapphireSapphireIn stock
  • CitrineCitrineIn stock
Open the store→

How an examination works

  1. 1

    Tell me about the stone

    What it is said to be, and what you need to know.

  2. 2

    Choose the analysis

    From a consultation to a full spectroscopic workup.

  3. 3

    Examination

    Classical gemology first, instruments where they add evidence.

  4. 4

    Certificate

    Permanent report number and QR code — anyone can check it online.

    How verification works →

Microscope

inclusions

Polariscope

optic character

Refractometer

refractive index

Hydrostatic balance

specific gravity

Chelsea filter

colour response

Long- & short-wave UV

fluorescence

Raman

identity

FTIR

treatments

UV-Vis-NIR

colour origin

XRF

chemistry

Olena Rybnikova - Gemologist and Researcher

Who examines your stone

I'm a gemologist with a deep love for the science and beauty of gemstones. Based in Bratislava, Slovakia, I combine academic training in mineralogy with hands-on expertise to help clients make confident decisions about precious stones.

— Olena Rybnikova

PhD in Mineralogy and Gemmology, Comenius University in Bratislava. Master's in Gemology, Mineralogy, Geochemistry, Petrology, Taras Shevchenko National University of Kyiv. GIA-trained in gem identification, coloured stones and diamond grading, with research published in Scientific Reports and the Journal of Raman Spectroscopy.

More about Olena →