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ZIZOV Diamonds — Frequently Asked Questions
ZIZOV Diamonds — Antwerp

Your Questions,
Answered.

Everything you need to know about our diamonds, process, shipping, and service.

Navigating Your Jewellery Journey

We're here to make your jewellery experience as smooth and transparent as possible. If you don't find what you need below, our team is always available.

At ZIZOV, transparency is a core value — not a marketing line. We believe you deserve clear, honest answers before making a decision as meaningful as a diamond purchase. Below you'll find answers to the questions our clients ask most.

Every diamond we sell is independently certified by GIA, IGI, or HRD — the world's three most respected gemological institutes. Every piece is handcrafted in Antwerp and backed by our lifetime service commitment.

Shipping & Delivery

06 Questions
Where does ZIZOV ship its products?

We proudly offer worldwide shipping. Whether you're located in the United States, Europe, Asia, or any other part of the world, we can deliver our products to your doorstep — fully insured and with a tracking number.

How long does it take to receive my order?

Delivery times are displayed on each product page for full transparency. As a general guide:

  • Within Europe: 1 to 2 business days
  • International: varies by destination, typically 3–7 business days
  • Bespoke & custom pieces: 4 to 6 weeks from final design approval

Your order will be delivered in a timely and fully secured manner.

What are the shipping costs?

We are delighted to offer complimentary shipping on all products, worldwide. Your order is also fully insured at no extra cost, providing complete peace of mind from our workshop to your door.

How is my order packaged?

Every ZIZOV piece is packaged luxuriously in our signature presentation box, reflecting the beauty and craftsmanship of what's inside. Bespoke pieces also include the original diamond certificate and a personal letter of authenticity.

Can I track my order?

Yes. Once your order is dispatched, you will receive a tracking number via email. You can use this number to monitor the status and estimated delivery date of your order in real time.

What if I need my order by a specific date?

If you have a specific date in mind, please let us know during checkout or contact our team directly. We will go above and beyond to ensure your order arrives when you need it.

Custom & Bespoke Jewellery

06 Questions
Does ZIZOV offer custom jewellery design services?

Yes — bespoke design is one of our most valued services. Our team of skilled artisans and designers in Antwerp is dedicated to helping you create a one-of-a-kind piece, set with GIA, IGI, or HRD certified stones.

How does the custom jewellery design process work?

Our bespoke process follows four clearly defined steps:

  • Step 01 — The Consultation: We listen to your vision, inspiration, and requirements in full.
  • Step 02 — 3D CAD Design: A detailed digital render — production begins only after your written approval.
  • Step 03 — Master Craftsmanship: Our Antwerp goldsmiths handcraft your piece with precision.
  • Step 04 — The Final Reveal: Delivered in our signature box with diamond certificate and letter of authenticity.
What types of custom jewellery can I create?

The possibilities are virtually endless — engagement rings, wedding bands, anniversary necklaces, tennis bracelets, and statement earrings. Whether you have a precise design in mind or simply a feeling you want to capture, our team will guide you from concept to creation.

What sets ZIZOV's custom jewellery apart from ready-made pieces?

Our custom jewellery is crafted uniquely to your specifications — a one-of-a-kind creation that cannot exist anywhere else in the world. Unlike ready-made pieces, bespoke jewellery allows you to express your individual story and meaning.

How long does it take to design and create a custom piece?

From consultation to final reveal, our bespoke process typically takes 4 to 6 weeks. If you have a specific date in mind, we plan around it from day one.

Can I see a design concept before committing to a custom piece?

Yes — without exception. We provide fully detailed 3D CAD renders from multiple angles before a single grain of gold is cast. Production does not begin until you have formally approved the design — in writing.

Returns, Warranty & Repairs

05 Questions
What is covered by ZIZOV's warranty?

We offer a complimentary 2-year limited warranty on all fine jewellery purchases. This covers manufacturing defects including loose diamonds or prongs, missing pavé stones, broken clasps, and damaged soft chains.

The warranty does not cover normal wear and tear, resizes, lost centre stones, or stolen pieces. Alterations by external parties void the warranty.

How do I initiate a warranty repair?

Contact our team at clientcare@zizovdiamonds.com. Our Customer Concierge Team will guide you through the entire process. Please do not have work carried out by a third-party jeweller, as this will void your warranty.

Can I return a customised piece?

Custom-made products are not subject to standard return provisions under Belgian law. However, if a customised product does not meet expectations due to measurement discrepancies or manufacturing faults, you may return it for repair or adjustment within 30 days from delivery.

What are the conditions for returning a customised product?
  • Measurement discrepancy from your designated sizes, or a manufacturing fault
  • Returned in original packaging — including certificate, accessories, gift box, and case
  • In perfect, unworn condition — incomplete, damaged, or dirty items will not be accepted
How long does ring resizing take?

You may return any ordered piece for resizing within 24 months from delivery. Resizing typically takes up to 3 weeks. Contact us at clientcare@zizovdiamonds.com to begin.

Lab Grown Diamonds & Certification

04 Questions
What is the difference between lab-grown and natural diamonds?

Lab-grown diamonds are created in controlled environments replicating natural formation conditions. Both are chemically, physically, and optically identical — the only difference is origin. Both are available at ZIZOV with full GIA, IGI, or HRD certification.

Are your diamonds ethically sourced and conflict-free?

Yes — without exception. All our diamonds are ethically sourced, certified conflict-free, and fully compliant with the Kimberley Process. We work exclusively with suppliers operating under the strictest ethical and sustainability standards.

Which certification bodies do you work with — GIA, IGI, or HRD?

Every centre stone — natural or lab-grown — is independently certified by one of the world's three most respected gemological institutes:

  • GIA — Gemological Institute of America
  • IGI — International Gemological Institute
  • HRD — Hoge Raad voor Diamant (Antwerp Diamond Council)

The original certificate is always delivered with your piece. HRD is headquartered here in Antwerp — as are we.

What is the process for creating a custom engagement ring?

We begin with a personal consultation — in our Antwerp showroom or online. Together we select the perfect certified diamond, metal (18K gold or Platinum 950), and design direction. We create a 3D rendering for your approval before our goldsmiths craft the final piece.

ZIZOV private consultation — Antwerp Diamond District

Still Have Questions?

We're here to help. If you can't find what you're looking for above, reach out to our team for personalised guidance — with no obligation and no pressure.

GIA · IGI · HRD Certified
18K+ Gold Only
4–6w Bespoke Delivery
Free Worldwide Shipping
Lifetime Service