This elegant pendant necklace features a stunning round blue sapphire at its center, encircled by a halo of brilliant-cut diamonds set in platinum or white gold. The iconic Schlumberger design—named after legendary designer Jean Schlumberger—incorporates four square-cut diamonds at cardinal points, forming a subtle cross motif that enhances the sapphire’s brilliance. The delicate oval-shaped frame is meticulously pavé-set with small round diamonds, creating a luminous, continuous sparkle. Suspended from a fine link chain (likely 16–18 inches), the pendant balances sophistication with wearable refinement. Crafted with precision hallmarking typical of Tiffany & Co., the piece exemplifies timeless luxury jewelry design. Ideal for evening events, milestone celebrations, or as a refined heirloom, it pairs beautifully with both formal attire and elevated casual ensembles. The cool-toned blue sapphire evokes serenity and depth, while the diamond halo adds modern radiance—making this a versatile statement piece for discerning women who appreciate heritage craftsmanship and contemporary elegance.