North American Auction Company
Timed Auction

Last Chance March Passed Lots Offering - Ends March 10th

Mon, Mar 6, 2023 02:00AM EST - Fri, Mar 10, 2023 03:00PM EST
Lot 15

Vintage Tanzanite VS Diamond 18k Yellow Gold Ring

Estimate: $11,200 - $18,200

Bid Increments

Price Bid Increment
$0 $5
$50 $10
$100 $25
$500 $50
$1,000 $100
$2,000 $250
$5,000 $500
$10,000 $1,000
$25,000 $2,500
$100,000 $5,000
Featured in this lot is this vintage tanzanite VS diamond 18k yellow gold ring with GAL paperwork. The ring features a wonderfully and professionally crafted 18k yellow gold construction that is set in a vintage setting with inlaid enamel lacing around the center stone and a 'Oscar Friedman' hallmark with a '18k' gold stamp next to the hallmark. The center stone is a cushion modified brilliant cut tanzanite gemstone with measurements of 8.50 x 8.50 x 5.28mm and shows blue coloration with moderate saturation and is transparent with a total weight of 2.85 carats. The ring is decorated with a total of 88 round brilliant cut diamonds that shows a color gradient of G - H and a clarity of VS - SI and a weight of 1.13 carats. Tanzanite Is a very rare precious gemstone that is only found in the Usumburu Mountains that border the Umba Valley of northern Tanzania. Originally discovered in 1967 by Tiffany & Company who named the stone Tanzanite. Tanzanite is unique due to its exceptional pleochroism (an optical phenomenon in which a stone has different colors when observed at different angles). The piece comes complete with GAL(Gemological Appraisal Laboratory of America, Inc., a GIA certified lab GAL Appraisal Number#: GAL202214691) report and appraisal confirming the above information and giving a total value of $18,200.00. The ring size is US 6 1/2.*

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