Crafted by Nature. Perfected by Zentha.
At Zentha, every gemstone tells a story — shaped by the earth, refined by human touch, and destined to become timeless beauty.
Sapphire Expertise
At the heart of Zentha lies a deep-rooted expertise in Ceylon sapphires.
With direct access to trusted sources in Sri Lanka, we carefully select stones for their colour, clarity, and natural character.
Our close relationships within the Sri Lankan gem trade allow us to source both exceptional individual stones and tailored selections for specific projects.
For European jewelers seeking reliability, transparency, and direct origin access, Zentha serves as a dedicated sapphire sourcing partner.
Where Trust Begins at the Source
From the gem fields of Sri Lanka to the hands of discerning collectors worldwide, we source each gemstone with uncompising ethics, precision, and transparency. Every stone is carefully selected for its authenticity, character, and long-term value — ensuring beauty that carries integrity.
frequently asked questions
Welcome to our Frequently Asked Questions (FAQs) section! We understand that you may have questions about our products, services, or policies, and we're here to provide you with all the information you need.
1. Are all gemstones natural?
Yes. All gemstones offered by Zentha are 100% natural. We don't sell synthetic gems.
2. Do your gemstones come with certificates?
Yes. All mid-tier and premium gemstones include a certificate from a reputable gemological laboratory. For lower-value items, certification may be optional but can be arranged upon request.
3. Can I return a gemstone if I change my mind?
We offer a 14-day return policy for standard retail gemstones priced under USD 2,000, in compliance with EU consumer regulations. Collector-grade and premium gemstones (USD 2,000+) are non-returnable, as they are treated as curated or investment-grade items.
4. Can I make an offer on a gemstone listed on your site?
Yes, absolutely. For all mid-tier and premium stones, we encourage serious buyers to submit a counteroffer. Indicative prices are shown as a guide, and we’re happy to consider reasonable proposals.
5. Do you ship internationally?
Yes, we ship worldwide using trusted carriers like DHL Express and FedEx, with full insurance and tracking. Buyers are responsible for any import duties, VAT, or customs fees in their country.
6. Can I view a gemstone before purchasing?
In-person viewings may be arranged depending on the value of the GemDenmark serious buyers. For remote buyers, we also offer detailed videos, certificate scans, and can arrange live consultations via video call.
7. Are your gemstones ethically sourced?
Absolutely. We are committed to responsible sourcing and work only with vetted suppliers and miners who follow ethical, traceable, and fair trade practices.
Gallery
Discover how our gemstones are sourced, shaped, and brought to life.
