The Sovereign Crest — Blue Diamond Marquise
Handcrafted by our family studio · Made to order
Inquiry first · Fancy-colour stone sourced for you
Fancy-colour diamonds are sourced one at a time, so we confirm the stone with you first. No payment is taken now. Our family team replies within 48 hours.
- Fully Insured Worldwide Shipping
- Lifetime Craftsmanship Warranty
The Sovereign Crest, set with a blue lab-grown diamond.
A marquise in fancy blue rises between flowing infinity curves, held in soft claw prongs over a hidden halo. Pear and round white diamonds run through the band with crown-like symmetry.
We first made it for a client who wanted our Sovereign Crest in blue. Every center diamond is IGI-certified; the blue colour comes from a post-growth treatment, noted plainly on the report.
Crafted to Last. Guaranteed.
Every Luther’s Diamonds piece is handcrafted by our family studio. We include a Lifetime Craftsmanship Warranty for any manufacturing defect.
Learn More →




