14KT Yellow Gold 16.89ct Blue Topaz and Diamond Ring A6093. Good Condition! ES454BP. One electronically tested 14KT yellow gold ladies cast blue topaz and diamond ring. Condition is good. The featured blue topaz is supported by diamond accented shoulders and completed by a two millimeter wide band. Bright polish finish with rhodium accents. Identified with markings of "14K". Containing: One prong set oval mixed cut natural blue topaz, measuring 18.10 x 13.10 x 9.10mm, 8% bulge factor, approximate weight of 16.89ct., clarity is eye clean, type I, medium, very slightly grayish, very slightly greenish blue color, (GIA vslgB 5/3), cut is good. Transmitting light with no distortion, transparent. Colored Stone Grading Report attached. Graded in the setting. A deposit of a thin layer has been applied to the topaz to produce the intense color effect. The process utilizes a very high temperature treatment, diffusion of ions into the topaz, plus in some cases neutron bombardment has been used to create the color center. Diffusion processes causes the added ions to become part of the crystal surface with no distinct boundary. Do not put a gem treated in this manner into an ultrasonic cleaner. Eight prong set round brilliant cut diamonds, measuring 1.70 - 1.70 x 1.02mm (depth est.) approximate total weight of 8 Stones = 0.16ct. Graded in the setting. Clarity I-1 to 1-2. Color H - I. Total Weight of Colored Stones 16.89ct. Total Weight of Diamonds 0.16ct. Total Weight of Ring 7.60gm. AIG Appraised at $1,880.00.

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