18k White Gold Filigree Diamond and Sapphire Ring Nestled in elegant 18k white gold filigree is a glistening Old European cut diamond on this luxurious ring. A recently developed technology for gemstone production led to the creation of these sapphires. Absent of inclusions, these glorious creations have each been masterfully cut to a faceted triangle and are found to the sides of the center diamond. Old European cut, .18 ct, SI1, I/J color, synthetic sapphires. Marked 18k, ring size 6-1/2. Excellent condition. Note: All stones are analyzed by a certified Gemologist. To retain the integrity of the setting, gemstones are not removed to determine weights, clarity and color grades are approximate.