* An 18 Karat Yellow Gold, Mexican Fire Opal, Diamond and Colored Diamond Necklace, Michael Youssoufian, containing one octagonal step cut fire opal weighing approximately 49.57 carats and 19 freeform phenomenal fire opals weighing approximately 68.34 carats total set within an openwork collar setting with center drop pendant, further accented by numerous round brilliant cut diamonds and numerous round, oval, pear, princess, and marquise cut yellow diamonds of varying intensities (origin of color not tested), the necklace contains approximately 24.00 carats of diamonds total. Stamp: (Maker's mark for Michael Youssoufian) 750 D24.00 49.57 68.34. 58.50 dwts. Estimate $ 10,000-15,000
All stones are present and securely set. The metalwork shows no signs of repair. The clasp and safety are in fine working order.
Gem Characteristics (graded in setting) Center Fire Opal The stone is orange in hue, medium in tone and moderately strong in saturation, slightly clouded but transparent and even in coloration. The table of the stone shows scattered superficial scratches under 10X magnification, no other wear was obvserved.
Freeform Fire Opals The stones range from near colorless to intense orange, with moderate to strong play-of-color, slightly cloudy to highly transparent. The bottom opal shows significant surface crazing, the remaining opals show no appreciable eye visible wear.
Near Colorless Diamonds Color: F-H Clarity: VS1-2 Condition: no signs of wear visible at 10X magnification
Colored Diamonds Color: from XYZ range to Fancy Intense, from yellow to brownish yellow to orange-yellow Clarity: VS2-SI2, majority SI Condition: scattered minor edge wear visible at 10X magnification
An 18 Karat Yellow Gold, Mexican Fire Opal, Diamond and Colored Diamond Necklace, Michael Youssoufian, 58.50 dwts.