Materials matter
The metal you choose is part of your ring’s character. Learn about 9K, 14K and 18K gold, as well as platinum, and the colours and qualities that suit your style. Available options are shown on each product.
Read the materials guide
Lifetime warranty
On all engagement, wedding and fashion rings.
Free resizing
One complimentary resize within 12 months.
Free & insured delivery
All orders. Duties & taxes included.
Our signature gift packaging
Details
| Centre stone | Oval lab-grown diamond |
|---|---|
| Design | Horizontal Oval Lab-grown diamond Engagement Ring |
| Metal | 9K, 14K, 18K gold or platinum |
| Personalisation | Your choice of lab-grown diamond & ring size |
Delivery & returns
Complimentary shipping with duties and taxes included. 30-day worry-free returns.
Shipping details → · Returns details →Jewellery care
Care tips:
- Gently clean with lukewarm water and mild soap to remove sweat and dirt.
- Avoid harsh chemicals and direct contact with perfume.
- Store separately in a cool, dry place.
A perfect pairing
Once you’ve chosen your engagement ring, discover a wedding band to wear alongside it. Our wedding ring collection includes simple bands and diamond-set designs. Our team can help you find a pairing you love.
WEDDING RINGS
The Highest Quality Control
Every HIGHLINE DIAMOND ring undergoes a meticulous multi-stage process — casting, polishing, cleaning, and 50× microscopic inspections by dedicated quality control specialists — to ensure flawless craftsmanship and lasting brilliance. Any piece that falls short of our standards is immediately rectified by our in-house quality control team.
Our Services
Personal guidance, from choosing your jewellery to caring for it.
Frequently Asked Questions
Your questions, answered.
How long will my order take?
Delivery timing depends on whether your piece is ready to ship or made to order. Check the product’s production and delivery details, or contact our team with your chosen item and preferred date before ordering.
View delivery details →Do you ship worldwide?
Yes. We offer complimentary delivery with no minimum spend to destinations available at checkout. Applicable import duties and taxes are prepaid; any applicable sales tax is shown in your final checkout total.
View shipping policy →How do I choose the right size?
For rings, use our US ring size guide before selecting a size. For other jewellery, check the measurements in the product details. If you are unsure, our team can help you choose.
View ring size guide →What payment methods do you accept?
Available payment methods are displayed at checkout and may vary by your country and currency. For help completing your payment, please contact our team.
Contact our team →Can I return my order?
Standard collection orders, including selected metal, size and diamond options, are eligible within 30 days of delivery. Refunds carry a 10% processing fee, capped at US$300; return shipping is customer-paid. Engraved items carry an additional US$40 removal and refinishing fee.
View returns & exchanges →Can my ring be resized if it does not fit?
Eligible rings include one complimentary resize within 12 months. Contact us first so we can assess the design and required size change, and arrange the next steps. You cover shipping to our studio; we cover return delivery.
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