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Lot 0267
One electronically tested 14KT white gold ladies cast blue topaz and sapphire ring with a bright polish finish. The ring features a series of three stacked blue topaz and sapphire ribbons, completed by a two and one-half millimeter wide band. Identified with markings of '14K'. Condition is good. Containing: Three prong set square cushion mixed cut natural blue topazes, measuring 6.00 x 6.00 x 4.00mm, approximate total weight of 3.65ct., 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. Measurements & the color grade are an average for the group. 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. Thirty-eight prong set round mixed cut natural blue sapphires, measuring 1.80 - 1.80 x 1.17 mm, approximate total weight of 1.24ct., clarity is slightly included, type II, medium dark, very slightly grayish, violetish blue color, (GIA vB 6/3), cut is good. Transmitting light with a minimum of distortion, transparent. Naturally occurring internal & external characteristics are present. Color grade is an average for the group. Graded in the setting. Total Weight of Colored Stones 4.89ct.. Total Weight of Ring 5.22gm. AIG Appraised at $1,535.00.

Condition

Good

Starting Bid

$1.00

Buyer's Premium

  • 19.75%

4.89 ctw Blue Topaz and Sapphire Ring - 14KT White Gold

Auction ended on Sat, Jul 14, 2018
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Estimate $1,200 - $1,535
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742 Hampshire Rd.
Ste. D
Westlake Village, CA 91361
United States
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