One electronically tested 14KT yellow gold ladies cast & assembled opal and diamond necklace. Eighteen inch length necklace features a slightly graduating flexible opal and diamond bezel ribbon, terminating in a concealed clasp with twin safeties. Bright polish finish with rhodium accents. Trademark is Orianne. Identified with markings of "14K". Condition is new, good workmanship. Thirty-three semi crystal opals that are cut in a oval shaped cabochon and are bezel set, measuring 9.00 mm long x 7.00 mm wide, and 4.50 mm thick and the approximate weight is 48.57 carats. The opals have a somewhat bright, orange-green play of color (fire) in a flashfire pattern a high dome a good cut slightly included slight variation in base in their brightness and pattern and are slightly directional. Measurements are an average for the group. Graded in the setting. Seven Hundred Ninety-Two prong set round brilliant cut diamonds approximate total weight of 792 Stones = 8.99ct. Graded in the setting. Clarity I-2 to I-3 Color I - K