Platinum Lab Grown Gemstone Engagement Rings
Platinum gemstone engagement rings place colour against a cool white setting. Explore lab grown coloured gemstones in 950 platinum, with the centre stone and surrounding details creating the character of each design. Blue, green, red and softer hues offer distinct starting points, whether you prefer an open solitaire or a more decorative frame. Browse the full lab grown gemstone engagement ring collection to compare colour and metal together.

LOVETTA
Round Ruby & Diamond Baguette Platinum Trilogy

LOVETTA
Round Pink Sapphire & Diamond Baguette Platinum Trilogy

LOVETTA
Round Blue Sapphire & Diamond Baguette Platinum Trilogy

GRACE
Lab Grown Alexandrite Solitaire 950 Platinum

GRACE
Lab Grown Padparadscha Sapphire Solitaire 950 Platinum

GRACE
Lab Grown Yellow Sapphire Solitaire 950 Platinum

GRACE
Lab Grown Morganite Pink Sapphire Solitaire 950 Platinum

GRACE
Lab Grown Pink Sapphire Solitaire 950 Platinum

VIOLA
Pink Sapphire Oval & Diamond 950 Platinum Shoulder Set Ring

VIOLA
Yellow Sapphire Oval & Diamond 950 Platinum Shoulder Set Ring

ROSA
Emerald & Diamond 950 Platinum Halo

ROSA
Alexandrite & Diamond 950 Platinum Halo

ROSA
Aquamarine Blue Sapphire & Diamond 950 Platinum Halo

ROSA
Padparadscha Sapphire & Diamond 950 Platinum Halo

ROSA
Morganite Pink Sapphire & Diamond 950 Platinum Halo

ROSA
Pink Sapphire & Diamond 950 Platinum Halo

FLORENCE
Ruby 950 Platinum Solitaire Ring

FLORENCE
Alexandrite 950 Platinum Solitaire Ring

FLORENCE
Padparadscha Sapphire 950 Platinum Solitaire Ring

FLORENCE
Morganite Pink Sapphire 950 Platinum Solitaire Ring

FLORENCE
Pink Sapphire 950 Platinum Solitaire Ring

FLORENCE
Yellow Sapphire 950 Platinum Solitaire Ring
Buying guide
Colour and contrast in a platinum gemstone ring
A platinum setting provides a cool white frame for a coloured gemstone. Deep blues, vivid greens and softer shades each create a different relationship with the metal, so start with the colour you enjoy and then consider the outline of the complete ring. This collection is specifically for lab grown gemstones set in 950 platinum.
Choose the gemstone, not only its colour
A lab grown blue sapphire and a lab grown emerald are different gem materials, with different properties and care requirements. Lab grown describes their origin; it does not mean every coloured stone is the same substance. Check the identified gemstone in the individual product specification before comparing designs.
Understand the platinum setting
950 platinum contains 95% platinum. Its naturally white colour offers an alternative to white gold, but it is not scratchproof and can develop a patina through wear. Compare band widths and the height of the basket as well as the view from above. A similar colour does not make white gold gemstone rings identical in composition or maintenance.
Frame the colour with the right amount of detail
An open setting can make the gemstone's outline the main focus; a halo adds another boundary around it. The wider gemstone halo collection is useful for comparing those more decorative compositions. Check the origin and specification of any accent stones separately from the coloured centre.
What should guide everyday care?
Follow the care advice for the particular gemstone and setting, not the metal alone. Cleaning methods suitable for one gem may be inappropriate for another. A jewellery consultation can clarify the stone identity, setting dimensions and wedding-band clearance, helping you choose a ring whose practical details are as considered as its colour.
2026 Award Nominations
Award Winning Jeweller
We’re proud to be recognised consistently by the UK jewellery industry’s leading awards programmes. In 2026, Lily Arkwright has been shortlisted for Branded Boutique of the Year at the Professional Jeweller Awards and Bridal Jewellery Retailer of the Year at the UK Jewellery Awards, reflecting our continued commitment to exceptional customer service, product innovation, and ethical craftsmanship.
These latest nominations build on previous industry recognition, including being shortlisted for Bridal Jewellery Retailer of the Year at the 2025 UK Jewellery Awards and Independent Retailer of the Year at the Professional Jeweller Awards 2025. We were also finalists for Retail Team of the Year at both the Retail Jeweller Awards and Professional Jeweller Awards in 2024, recognising the passion, expertise, and dedication of our team.
We’re honoured to be recognised for helping thousands of couples find the perfect engagement rings and wedding rings, with a strong focus on choice, transparency, and personalisation. As an award-winning jeweller, we remain committed to delivering exceptional service, exceptional craftsmanship, and responsibly sourced lab-grown diamonds, moissanite, and natural diamonds, ensuring every customer can find a ring that perfectly reflects their love story.























































































