![Rare 4.2ct GRS ‘Royal Blue’ Unheated Sri Lankan Sapphire & 3ctw Diamond Halo Ring – 18K White Gold](http://reginagioielli.com/cdn/shop/files/UN-0047_2_911cc102-f05e-46cc-a344-b0a751111461_{width}x.jpg?v=1738439986)
A stunning vintage Italian masterpiece, this Diana-style halo ring features a 4.2ct GRS-certified ‘Royal Blue’ unheated Sri Lankan sapphire, set in 18K white gold and surrounded by 3ctw of dazzling diamonds.
The Sapphire – This is a true collector’s gem, boasting a deep, velvety Royal Blue hue with strong fluorescence, a signature of the finest unheated Ceylon sapphires. Unheated sapphires of this size, saturation, and color are exceedingly rare. Natural inclusions confirm its authenticity, enhancing its rich depth and glow.
The Setting – The Italian craftsmanship in this 18K white gold Diana-style halo setting makes this ring an important-looking statement piece, exuding both elegance and prestige. The 3.00ctw of brilliant diamonds (H-I color, VS-SI clarity) elevate the sapphire’s brilliance, creating a showstopping presence.
A true heirloom-worthy piece, this ring is perfect for collectors seeking an investment-grade unheated Royal Blue sapphire in a luxurious vintage Italian setting.
Details:
• Sapphire: 4.2ct GRS-Certified ‘Royal Blue’ Unheated Sri Lankan Sapphire
• Diamonds: 3.00ctw (H-I color, VS-SI clarity)
• Metal: 18K White Gold (tested)
• Weight: 6.80g
• Size: 56 EU / US 7.5 – Resizable