Authentic Ring Concierge platinum solitaire engagement ring with 4.03 carat emerald-cut lab-grown diamond. Full hallmarks: “403” (carat weight) and “RC PLAT” (Ring Concierge Platinum, not 14k or 18k)—genuine designer piece. Diamond specs (IGI certified LG58232605): • 4.03 carat emerald cut • H color (near-colorless) • VS1 clarity • Excellent polish • Excellent symmetry • No fluorescence • Laser inscription visible on girdle (matches report) QR code scans to full IGI verification. Clear, eye-clean stone with stunning finger coverage and classic step-cut sparkle. Perfect modern minimalist look. Condition: excellent/like new Size: 7.5 Metal: Platinum Comes with: IGI report, Ring Concierge box Ring Concierge is the gold standard for custom luxury settings. This is a rare find at resale pricing. Serious inquiries only. Happy to verify hallmarks and inscription via video call. NO OTHER RINGS INCLUDED, THANKS! Search Keywords Ring Concierge, emerald cut, lab diamond, 4 carat, 4.03ct, H color, VS1, IGI LG58232605, platinum solitaire, RC PLAT, 403 hallmarks, designer engagement ring, lab grown diamond, luxury jewelry