Frequently Asked Questions (FAQ)

Help Centre

Frequently Asked Questions

Everything you need to know about GemHub & Co. — from certified gemstones to how we craft, ship, and stand behind every piece.

01.About GemHub & Co.

GemHub & Co. is a fine jewellery brand specialising in certified natural diamonds, lab-grown / CVD diamonds, moissanite, and precious gemstone jewellery. We operate under Hamlet Global Trading FZCO, registered at IFZA Business Park, Dubai, UAE.
Our registered office is at IFZA Business Park, Building A1, Dubai, United Arab Emirates. We operate online only. Email support@gemhubco.com or call +971 555626108.
We aim to reply within one business day.

02.Products & Collections

We offer rings (engagement, solitaire, eternity, statement), earrings (studs, drops, hoops, chandeliers), necklaces & pendants, and bracelets (tennis, charm, bangle). Browse by stone — diamond, moissanite, ruby, emerald, sapphire, and more.
Gemstones: Natural diamonds, lab-grown / CVD diamonds, moissanite, ruby, emerald, blue sapphire.

Metals: 14K and 18K yellow, white, and rose gold; 925 sterling silver; and gold vermeil.
Gold vermeil is sterling silver (925) coated with at least 2.5 microns of gold. It is more durable than ordinary gold-plated jewellery.

03.Certifications & Authenticity

Yes. Diamonds are independently certified by IGI (International Gemological Institute) and GIA (Gemological Institute of America), confirming Cut, Colour, Clarity, and Carat weight.
Yes. Our moissanite stones come with a Certificate of Authenticity confirming they are genuine moissanite.

04.Natural vs Lab-Grown vs Moissanite

Natural Diamonds form over billions of years and are mined.

Lab-Grown Diamonds are chemically identical to natural diamonds but grown in a laboratory with a smaller environmental footprint. Certified by IGI/GIA.

Moissanite is a silicon-carbide gemstone scoring 9.25 on the Mohs scale. Not a diamond, but a beautiful and durable alternative.
Yes. Moissanite scores 9.25 on the Mohs hardness scale (diamond scores 10). It is highly resistant to scratching and heat-stable, making it ideal for engagement rings and everyday wear.
No. Moissanite does not cloud, fade, or lose its optical properties over time. Regular cleaning with warm water and mild soap keeps it looking its best.

05.Ordering & Customisation

Yes. We accept custom designs, specific gemstones, ring sizes, metal types, and engraving. Email support@gemhubco.com with your requirements.
Yes — complimentary video consultations on request. Email support@gemhubco.com to arrange a time.

06.Payment

We accept Visa, Mastercard, American Express and other methods shown at checkout. Payments processed securely by Stripe with SSL encryption. Prices listed in USD.

07.Shipping & Delivery

Yes. Complimentary insured worldwide shipping on all orders, no minimum. For U.S. orders, customs duties and import taxes are paid upfront.
  • Crafting & quality check — 5 to 6 working days
  • Shipping & transit — 7 to 10 business days
  • Typical total: 12 to 16 business days
Yes. All orders are fully insured and tracked via FedEx, DHL, or equivalent. A tracking link is emailed once dispatched.

08.Returns & Exchanges

  • Made-to-order & custom pieces — final sale (except if defective, we replace or refund)
  • Ready-stock items — return within 30 days, exchange within 45 days. First return ships free.
Contact support@gemhubco.com within 48 hours with photos. We arrange a full replacement or refund including return shipping.

09.Jewellery Care

  • Clean with soft toothbrush, warm water, mild dish soap.
  • Avoid harsh chemicals (bleach, chlorine).
  • Remove before swimming, exercising, or sleeping.
  • Store individually in a soft pouch or lined box.

10.Support

Monday to Friday, 10:00–18:00 GST. Email support@gemhubco.com anytime — we reply within one business day.
We operate online only. We offer complimentary video consultations — email support@gemhubco.com.

Thank you for choosing GemHub & Co.

Crafted with care  ♦  Delivered with trust

Still have questions?

Our team is here to help, whether you need guidance on choosing the right piece or have a question about your order.