Custom Portfolio Designed with Margaret Engagement Rings Front Page Malakan Rose-cut star sapphire Celtic engagement ring Date: July 30, 2020 A stunning custom Celtic engagement ring featuring a rose-cut grey star sapphire, and tucked away green sapphires on the side. Custom Portfolio Color changing sapphire in mokume-gane Custom Portfolio Blue Diamond Tapered Engagement Ring Abracadabra Two Tone Ruby & Diamond Valentine Ring