Design Your Love in Diamonds
Welcome to TJ Diamond — New Zealand's only direct-to-consumer fine jewellery manufacturer, where your story is at the heart of everything we create.
We believe the most important ring you'll ever give should feel personal, not pressured. So we threw out the rulebook.
✦ No retail markup
✦ No sales pressure
✦ No guesswork or surprises
✦ World-class engagement rings
✦ Craftsmanship you can trace
✦ Pricing you can trust
From raw metal to the final polish — every step, done under one roof.
Crafted From Sketches to Final Polish
At TJ Diamond, we don't simply sell jewellery—we manufacture it. Every piece begins as an idea, evolves through design and craftsmanship, and is meticulously finished to the highest standards. By manufacturing directly, we maintain exceptional quality while offering transparent pricing without traditional retail markups.
Manufactured by us. Sold directly to you. No traditional retail markups.
Four Process Blocks
Sketch & Design
Every piece begins with a concept, sketch, and careful planning.
Manufacturing & Casting
Produced through our New Zealand manufacturing facility and supported by our Houston casting house.
Stone Setting
Each diamond is expertly set for security, brilliance, and lasting beauty.
Final Polish & Quality Control
Every piece is inspected, polished, and finished before it reaches its new owner.
Why Choose TJ Diamond?
✓ New Zealand Manufacturing
✓ Houston Casting House
✓ Ethical Lab-Grown Diamonds
✓ Direct-to-Consumer Pricing
✓ Custom Jewellery Specialists
✓ Lifetime Guarantee
✓ Expert Craftsmanship
Explore...
Our Most Popular Rings
Custom Design Your Dream Ring with Tj
TJ Diamond is a premier diamond jewellery store specialising in handcrafted engagement rings, wedding bands, and fine diamond jewellery. Founded on a passion for exceptional craftsmanship and ethical sourcing, we offer a curated collection of solitaire, halo, three-stone, and custom diamond rings in yellow gold, rose gold, and platinum. Whether you're searching for the perfect engagement ring or a timeless gift, our expert team is here to guide you every step of the way.
Contact Us
Visit Our Store
Auckland, New Zealand
TJ Diamond
588 Chapel Road
Botany Town Centre
Auckland 2013
Houston, Texas
TJ Gold & Diamond
10311 North Eldridge Parkway, Unit B2
Houston, TX 77065
Contact numbers
NZ +64224937313
USA +18323435114