Lab Sapphire Emerald Cut Rectangular Halo Diamond Pavé Shank Open Ring | S925 Silver Royal Blue Adjustable Engagement Style

A vivid royal-blue rectangle inside a single ring of white diamonds, above a band where the diamonds continue all the way to the sides. The ring that makes the step-cut format feel like it was made for this exact shade of blue.

A large, near-square emerald-cut lab-grown sapphire in vivid, deeply saturated royal blue sits in a four-prong setting within a single-layer round brilliant white diamond pavé rectangular halo of approximately twenty round brilliant white diamonds, continuously set along the rectangular outline of the emerald cut’s own form — the halo’s four straight sides and four rounded corners following the sapphire’s rectangular perimeter precisely, creating a considered frame of exceptional white diamond brilliance around the sapphire’s vivid royal blue step-faceted table. Below the halo, a round brilliant white diamond pavé shank continues the white diamond presence outward: approximately six to eight small round brilliant white diamonds, continuously set along each side of the band from the halo setting outward to the shank’s mid-section, create a considered border of white diamond brilliance running the length of the visible shank on both sides. The two-element white diamond construction — the rectangular halo above and the pavé shank below — creates a ring of exceptional considered white diamond continuity and architectural completeness, the white diamond presence flowing from the halo’s rectangular frame outward along the shank’s two sides in a considered unbroken white diamond journey. The open adjustable band can be gently resized to fit any finger — no sizing required, making it the ideal gift.

Why You'll Love It

• Rectangular halo follows the emerald cut precisely — approximately twenty round brilliant white diamonds continuously set along the rectangular outline of the emerald cut’s own form create a halo of exceptional considered precision; the halo’s four straight sides and four rounded corners follow the sapphire’s rectangular perimeter precisely, and the continuous white diamond ring creates a considered frame of exceptional luminosity around the sapphire’s vivid royal blue step-faceted table
• Diamond pavé shank — white diamonds continue to the sides — approximately six to eight round brilliant white diamonds continuously set along each side of the band create a considered border of white diamond brilliance running the length of the visible shank; the pavé shank’s white diamond rows draw the eye inward toward the sapphire from both sides simultaneously, and the continuous pavé gives the ring a sense of exceptional considered diamond richness beyond the halo alone
• Two-element white diamond continuity — the rectangular halo above and the pavé shank below create a ring of exceptional considered white diamond continuity and architectural completeness; the white diamond presence flowing from the halo’s rectangular frame outward along the shank’s two sides gives the ring a sense of exceptional considered completeness and engagement-style authority
• Adjustable open band — one size fits most — the open band can be gently adjusted to fit any finger size, no sizing required; the adjustable construction makes this ring the ideal gift — no need to know the recipient’s ring size
• Guilt-free luxury — lab-grown sapphires share the same optical and chemical properties as mined stones, with a significantly lower environmental footprint

Product Details

• Metal: S925 Sterling Silver
• Gemstone: Lab-Grown Sapphire (Vivid Royal Blue), Emerald Cut (near-square), Four-Prong
• Halo: Single-Layer Round Brilliant White Diamond Pavé Rectangular Halo (~20 stones, continuous, follows emerald cut outline)
• Shank: Round Brilliant White Diamond Pavé (~6–8 stones per side, continuous)
• Band: Open Adjustable (One Size Fits Most)
• Style: Emerald Cut Rectangular Halo Diamond Pavé Shank Ring
• Finish: High Polish
• SKU: R1578B-2

At LabGrownPro, we believe fine jewellery should be beautiful, ethical, and accessible. Every piece is crafted with care — for you, and for the planet.