A classic and elegant fine jewelry pendant necklace featuring a natural pear-shaped blue sapphire, beautifully surrounded by a halo of 18 natural diamonds. The vibrant deep-blue sapphire weighs 1.02 ct and is complemented by 18 natural diamonds totaling 0.14 ct, set in solid Pt900 platinum. The accompanying solid Pt850 platinum chain bears the official Japan Mint assay hallmark, guaranteeing platinum purity. Total combined weight is approximately 4.90 g. [Product Details] • Center Stone: Natural Sapphire 1.02 ct (Engraved "1.02" on the reverse of the pendant setting) - Color: Vivid deep blue (displays violet-red fluorescence under UV light) • Side Stones: 18 Natural Diamonds total 0.14 ct (Engraved "0.14" on the reverse of the pendant setting) • Metal: - Pendant Top: Solid Platinum Pt900 (Stamped "Pt900" on the back of the bail) - Chain Necklace: Solid Platinum Pt850 (Stamped "Pt850" on clasp) • Official Hallmarks: Japan Mint assay hallmark (Japanese flag mark / / Pt) stamped on the chain tag • Total Weight: Approx. 4.90 g (verified on digital scale) [Dimensions] • Pendant Top: Approx. 16.0 mm (length including bail) x 9.0 mm (width) x 4.5 mm (depth) • Chain Length: Approx. 40.5 cm (with an adjustment ring at approx. 36.5 cm) [Condition Note] • Overall: Very good / excellent pre-owned condition. • Stones: The sapphire and diamonds are securely set with no chips or cracks observed. • Metal & Chain: Clean condition with only micro hairline scratches consistent with light handling. The chain links and spring-ring clasp function smoothly and securely with no structural deformation. [Gemstone Treatment Note] • Precious gemstones are commonly treated to enhance color or clarity. This specific item has not been tested for treatments (no laboratory certificate included). [Included Items] • Necklace and pendant only (Securely packaged in a protective jewelry box). [Shipping] • Shipped promptly from Japan via tracked and fully insured international courier (FedEx / EMS). • Import duties, taxes, and customs fees are the buyer's responsibility under local regulations.