Bespoke Lab Grown Diamond Engagement Rings in Windsor

Welcome to Windsor Goldsmiths, where historic royal heritage meets the modern evolution of fine luxury. Nestled by Castle Hill, we specialize in creating breathtaking, ethically conscious lab grown diamond engagement rings in Windsor.

Why compromise on your dream ring? Lab-grown diamonds offer identical physical, chemical, and optical brilliance to mined diamonds, allowing you to maximize your budget for a larger, higher-clarity stone beautifully set in a custom creation uniquely your own.

Lab grown diamond engagement rings Windsor - Bespoke oval cut ring
Custom jewellery design sketches and finished diamond ring

Make It Your Own With Our Custom Design Process

At Windsor Goldsmiths, we don’t just sell jewellery—we encapsulate your personal love story into a timeless treasure. Every client has a different vision, and our private, “by appointment only” service ensures your bespoke ring is brought to life with complete data privacy, absolute transparency, and expert guidance.

Whether you dream of a classic brilliant solitaire, an intricate vintage halo, or a modern trilogy setting, our custom design layout brings your ideas from concept sketch to an enduring family heirloom.

Step 1

Choose or Amend
Select a design structure from our curated bridal collections as your creative foundation.

Step 2

Precious Metals
Select your canvas from sustainable Platinum, 18ct Yellow Gold, White Gold, or Rose Gold.

Step 3

Select Your Diamond
Hand-pick from certified brilliant lab-grown diamonds across all cuts and sizes.

Step 4

The Final Polish
Incorporate optional custom engravings and select your luxury presentation ring box.

Private Consultations in the Heart of Windsor

To ensure total discretion and a completely dedicated personal service, our Castle Hill boutique operate strictly by appointment only. If visiting our showroom isn’t convenient, we are proud to offer a premium mobile service, bringing our expertise directly to your home or workplace across a 25-mile radius of Windsor.

Our Location: Windsor Goldsmiths, Castle Hill House, 12 Castle Hill, Windsor, Berkshire, SL4 1PD

Opening Hours

(By Appointment Only)

Mon – Fri: 9:00 am – 6:00 pm
Saturday: 9:00 am – 5:00 pm
Sunday: 10:00 am – 4:00 pm

Why Choose a Lab Grown Diamond Engagement Ring?

Discover why modern couples in Windsor are choosing cultivated diamonds for their bespoke jewellery designs.

100% Real Diamonds

Lab-grown diamonds are not imitations or cubic zirconia. They are chemically, physically, and optically identical to earth-mined diamonds. Composed of pure carbon, they score a maximum 10 on the Mohs hardness scale—offering the exact same everlasting sparkle, fire, and durability for everyday wear.

Unrivalled Budget Flexibility

Because growing diamonds eliminates the immense overheads of industrial mining operations, they cost significantly less. This allows you to choose a much larger carat weight and a higher clarity grade (such as flawless D-colour stones) without expanding your budget.

Guaranteed Ethical Origin

Every single lab-created gemstone can be traced directly back to its source laboratory, giving you 100% peace of mind. By choosing a lab diamond, you bypass the environmental disruptions and land displacement associated with earth mining, making it a truly conscious choice.