Frequently Asked Questions

Our Diamonds & Gemstones

Are your diamonds natural or lab-grown? All ready-to-ship pieces in our current collection are set with natural, earth-mined diamonds only — never lab-grown diamonds or simulants. For made-to-order and custom pieces, we can source either natural or lab-grown diamonds, depending on your preference and budget. Our standard grades are VVS to VS clarity and FG colour. Certification is available on request.

What is a pie-cut diamond ring? A pie-cut diamond ring uses multiple smaller diamonds arranged edge to edge so their facets align perfectly and the eye reads one large unified diamond. The result is a 1 to 4-carat face-up appearance at a fraction of the solitaire price. Diamond sourcing follows the same natural or lab-grown options described above — the technique is different, the choice of diamond is yours.

What is invisible setting? Invisible setting is a technique where each stone is seated into 18-karat gold rails from below so no metal is visible on the top surface. The result is an unbroken field of colour or sparkle with no prongs. It is one of the most skilled techniques in fine jewellery.

What gold purity do you use? All our jewellery is made in 18-karat gold — available in yellow, white or rose gold. We also work in 9-karat gold for specific wholesale requests.

Ordering & Delivery

How long does it take to receive my order? Regular gemstone and diamond jewellery takes 2 to 4 weeks from design approval. Invisible-set and pie-cut pieces, due to the technical precision required, take up to 8 weeks. Rush orders can be discussed case by case. For urgent orders WhatsApp us before purchasing.

Do you ship worldwide? Yes — fully insured, to any destination worldwide, with full tracking. No minimum order value. Ready-to-ship pieces qualify for free shipping; made-to-order and custom pieces are quoted with shipping based on destination and order value. Every piece ships from Bangkok.

What is your return policy? Ready-to-ship items may be returned within 14 days of delivery in original, unused condition — see our full Refund Policy for details. Custom and made-to-order pieces follow separate deposit and cancellation terms, since each is produced specifically for you. Manufacturing defects on any piece are fully covered — contact us and we will make it right.

What payment methods do you accept? We accept Visa, Mastercard and Apple Pay. For wholesale and larger orders, bank transfer is also available — contact sales@trinitydesignerjewel.com.

Custom Designs

Can you make a custom design? Yes — custom design is one of our core services. Bring us a sketch, a reference image or just an idea and our CAD team will develop it into a finished piece. No minimum order.

Are you a manufacturer or a retailer? We are a manufacturer. Every piece is designed and made in our Bangkok atelier — no middlemen, no dropshipping, direct manufacturer pricing. We supply wholesale jewellers across the USA, UK, Middle East and Asia as well as private clients worldwide.

Ring Sizing

How do I find my ring size? Visit our Ring Size Guide for a full international size chart covering US, UK, European, Asian and Japanese sizing. If still unsure WhatsApp us before ordering — we will help you find the right size.

Can you resize a ring after delivery? Plain gold bands can typically be resized. Invisible set, full pavé or eternity bands cannot be resized without damaging the setting. Please confirm your size carefully before ordering — our team is happy to help via WhatsApp.