Jewelry policy

Jewelry can be an important purchase for many buyers, so it’s critical to describe items clearly and list them correctly to help buyers find exactly what they want and be happy with the item they receive. This policy covers how to list jewelry on Ventio—how to describe metals and gems, meet hallmarking and sourcing requirements, and deliver a great buying experience.

What is the policy?

Rules for metals

• If your item is made from plated, flashed, or filled metals, you must clearly state this in the title, item specifics, and description (e.g. “gold-plated silver,” “silver-filled brass”).
• Hallmarking under Cyprus Law N. 52(I)/2009 (as amended) and the Vienna Convention is required on all fine-metal items (solid or plated):
• Gold: 9 K (.375), 14 K (.585), 18 K (.750), 22 K (.916), 24 K (.999)
• Silver: Sterling (.925), Fine Silver (.999)
• Platinum: Pt 850 (.850), Pt 900 (.900), Pt 950 (.950)

Rules for gemstones Natural gems

• You may include the gemstone name in the title and item specifics only if it is genuinely natural and has not been treated or enhanced.

Treated gems If listing a natural gemstone that has been treated (e.g. heat, dye, irradiation), you must:

• Specify “treated” in the title.
• Select the treatment type in item specifics.
• In the description, disclose:

1. Treatment method. 2. That the effect is not permanent and may diminish over time. 3. That treatment significantly affects the gemstone’s value. 4. Any special care required to retain the enhancement. Lab-created gems

• Specify “lab-created” immediately before the gemstone name in the title (e.g. “lab-created diamond”). Do not use terms like “man-made.”
• Select “lab-created” in item specifics.
• You may only include the natural gem name if the lab gem’s mineral composition is identical to its natural counterpart.

Simulated gems

• Include the material name (e.g. “cubic zirconia”) in the title.
• State “simulated” in item specifics and description.
• If you reference the natural gem name, prepend “simulated” (e.g. “simulated sapphire”) in title, specifics, and description.

Unknown gem type, treatment or grade

• If you don’t know whether a gemstone is natural, treated, lab-created, or simulated—or its grade—you should list it in Fashion Jewelry and avoid unverified claims. Consider third-party certification before listing.

Other rules for diamonds

• A diamond is pure carbon crystal (hardness 10, specific gravity 3.52, refractive index 2.42). If your stone does not meet this definition, do not list it as a “diamond.” State its true material (e.g. moissanite, cubic zirconia, glass).
• Conflict-free sourcing:
• All rough diamonds must comply with the Kimberley Process Certification Scheme (KPCS) and be accompanied by a valid certificate.
• Diamonds mined, cut, polished, or processed in Russia—or by a Russian entity—are prohibited. See

Ventio’s Embargoed Goods policy.

• Any gemstones or metals from conflict zones or linked to human-rights abuses are banned.

What is considered Fine Jewelry? Fine metals

• Gold (≥ 9 K), sterling silver (.925+), platinum (.850+), or appropriately hallmarked plated fine metals.

Fine gemstones You may list natural or lab-created stones from the following complete list: Alexandrite, almandine-garnet, amber, amethyst, ametrine, ammolite, andalusite, aquamarine, beryl, black diamond, black opal, blue diamond, blue opal, blue sapphire, blue topaz, blue zircon, boulder opal, brown diamond, cat’s-eye, champagne diamond, chrome diopside, chrysoberyl, chrysoprase, citrine, corundum, demantoid garnet, diamond, emerald, fire opal, garnet, golden topaz, green garnet, green quartz, green sapphire, green tourmaline, grossular garnet, heliodor, hessonite, hiddenite, honey amber, imperial topaz, indicolite, indicolite tourmaline, iolite, jade, jadeite, jet, kunzite, kyanite, labradorite, lapis lazuli, lemon quartz, London blue topaz, madeira citrine, malachite, mandarin garnet, mint tourmaline, moissanite, moldavite, moonstone, morganite, opal, padparadscha, Paraíba tourmaline, peridot, pink diamond, pink quartz, pink sapphire, pink topaz, pink tourmaline, prasiolite quartz, purple jade, purple spinel, pyrope garnet, quartz, red diamond, rhodolite garnet, rose quartz, rubellite tourmaline, ruby, sapphire, smoky quartz, spessartite garnet, sphene, yellow topaz, white sapphire. What is considered Fashion Jewelry? Fashion metals

• Any base metal (brass, copper, steel, alloys), even if plated with fine metals.

Fashion gemstones The following simulated or common semi-precious materials are considered fashion gemstones: Agate, amazonite, amblygonite, apatite, aventurine, azurite, bloodstone, blue amber, blue chalcedony, brazanite, butterscotch amber, calcite, Caribbean amber, carnelian, celestite, chalcedony, charoite, cherry amber, cinnabar, cubic zirconia, danburite, diaspore, diopside, drusy quartz, dumortierite, dyed howlite, fluorite, fuchsite, gaspeite, goldstone, goshenite, green amber, green chalcedony, green gold, hauyne, hematite, hermatine, hickoryite, howlite, iron pyrite, jasper, larimar, lavender chalcedony, magnesite, marcasite, medusa quartz, multi-color amber, mystic topaz, obsidian, onyx, orange chalcedony, ouro verde quartz, petalite, pezzottaite, pink chalcedony, prehnite, quartzite, quartzose, rhodochrosite, rhodonite, rutilated quartz, sardonyx, scapolite, sea blue chalcedony, serpentine, shanseres, simulated alexandrite, simulated amethyst, simulated aquamarine, simulated blue sapphire, simulated emerald, simulated garnet, simulated opal, simulated padparadscha, simulated peridot, simulated pink sapphire, simulated quartz, simulated ruby, simulated sapphire, simulated topaz, simulated white sapphire, simulated yellow sapphire, sodalite, sphalerite, stabilized turquoise, strontium titanate, sunstone feldspar, Swedish slag, synthetic turquoise, tashmarine diopside, white topaz, yellow scapolite, yttrium aluminium garnet, zandrite. Jewelry selling practices & buyer experience

• Describe accurately: Use clear, well-lit photos from multiple angles; state metal type, gemstone details, measurements, and weight.
• Disclose flaws: Photograph and describe any chips, cracks, repairs, or treatments.
• Measurements: Provide precise ring sizes, chain lengths, and gemstone carat weights.
• Customer service: Promptly respond to questions, cancellations, and refund requests; meet Ventio’s Seller

Standards and Feedback policy.

• Common issues:
• Variable patterns (shell, wood grain): “exact pattern may vary.”
• Weight tolerances: state if approximate within ± 5%.

Activity on Ventio must follow this policy, the Ventio User Agreement, and all applicable Cyprus and EU laws. Non-compliance may result in listing removal, warnings, account restrictions, or suspension.

Why does Ventio have this policy?

This policy ensures:

• Legal compliance with hallmarking and gemstone-disclosure regulations
• Ethical sourcing and prevention of conflict-linked or embargoed materials
• Transparency and trust, so buyers receive exactly what they expect
• Protection for buyers and sellers, reducing disputes and fraud, and enhancing overall marketplace confidence.