Heart Shaped Lab-Grown Diamond Side Stone Engagement Rings in 18K White Gold Under £1,500

Lab-grown diamonds are chemically, physically, and optically identical to mined diamonds. They have the same crystal structure, hardness (10 on the Mohs scale), refractive index, and thermal conductivity. The only difference is their origin — grown in a controlled laboratory environment in 6–10 weeks rather than formed over billions of years. Lab-grown diamonds are typically 60–80% less expensive than equivalent natural diamonds, allowing you to choose a larger, higher-quality stone within your budget.

The heart shape is the most overtly romantic diamond cut — a modified brilliant with a distinctive cleft at the top. It requires exceptional cutting skill to achieve symmetrical proportions and balanced lobes. Heart shaped diamonds are a bold, meaningful choice for those who want their engagement ring to make a romantic statement.

Bright, modern elegance at an accessible price. 18K white gold contains 75% pure gold alloyed with white metals such as palladium or silver, finished with a rhodium plating for a bright, reflective white appearance. It offers the elegant look of platinum with a lighter weight.

The £1,000–£1,500 range opens up a wonderful selection of lab-grown diamond engagement rings with larger centre stones and more setting options. This is one of the most popular budget ranges for couples choosing lab-grown diamonds.

Side Stone rings with a 1ct lab-grown diamond start from £1,996

At 1ct, even lab-grown side stone rings start above £1,500.

Need help finding the perfect ring? Book a free consultation — our experts can work with any budget.

Pricing Guide

Heart Diamond Price Guide

0.50ct

Ring from

£2,013

0.70ct

Ring from

£1,988

1ct

Ring from

£2,053

1.50ct

Ring from

£2,167

2ct

Ring from

£2,538

Heart diamond prices updated daily. Book a free consultation to see diamonds in person at our Hatton Garden atelier.

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Heart shaped engagement rings stand for the promise of devotion and commitment. Signifying eternal love, the heart cut is identified for its brilliance and fiery charm — a uniquely romantic choice that perfectly represents a relationship built on love, affection, and lasting commitment.

Discover our selection of heart shaped designs or create your own through our ring builder. Available in solitaire and halo settings in 18kt white, yellow, or rose gold, or platinum.

Heart Shaped Lab-Grown Diamond Side Stone Engagement Rings in 18K White Gold Under £1,500 — FAQs

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