Swiss Blue Topaz (treated) (10-stone set)

Minas Gerais, Brazil
Gems, 6.31 mm x 4.23 mm to 5.84 mm x 4.03 mm, 6.20 ct (total weight)
Start Time: 03/21/2024 7:30:00 pm (CDT)
End Time: 03/28/2024 7:06:00 pm (CDT)
Auction Closed
Winning Bid: $95

Item Description

A classic set of Swiss Blue Topaz gems from Brazil. This set features 10 "Oval Brilliant" cut stones with a strong blue color and eye-clean clarity, which are all approximately in the 6x4mm range. Topaz is a well-known gem, found all over the world, and although it is found in good variety of colors, I think a lot of people associate it with the color blue. The irony is that a good number of the blue Topaz gems you'll see on the market have been irradiated to create the color, which is the case for this gem. These stones start out as colorless Topaz, and through a precise irradiation process, they will change to various shades of blue. This process was developed to fill a demand on the market for Blue Topaz gems that was always lacking, and suddenly buyers had plenty of blue Topaz to choose from. This method is well known in the gem trade and is not at all frowned upon, provided that people KNOW that they're buying a treated gem. These stones are stable and will not lose their color (some naturally colored Topaz gems can actually fade to colorless if they are exposed to certain kinds of light (typically sunlight). Treated Blue Topaz has been a staple for jewelry stores and gem dealers around the world for decades.

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Bidding History

Bid Amount Bid Time
$95 03/28/2024 7:01:52 pm (CDT)
$85 03/28/2024 7:01:52 pm (CDT)
$70 03/28/2024 6:59:42 pm (CDT)
$60 03/28/2024 6:58:07 pm (CDT)
$51 03/28/2024 6:58:07 pm (CDT)
$50 03/28/2024 6:57:58 pm (CDT)
$45 03/28/2024 6:57:58 pm (CDT)
$30 03/28/2024 6:54:28 pm (CDT)
$25 03/28/2024 6:16:48 pm (CDT)
$20 03/28/2024 11:21:37 am (CDT)
$15 03/28/2024 5:52:12 am (CDT)
$10 03/24/2024 12:41:34 am (CDT)