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https://www.liveabout.com/platinum-jewelry-information-2043747
Aug 17, 2017 · Jewelry that contains at least 950 parts per thousand of pure platinum may be marked or described as "Platinum". Jewelry that contains 850, 900 or 950 parts per thousand of pure platinum may be marked "Plat" or "Pt" if a number is used in front of the term to disclose the amount of pure platinum …Estimated Reading Time: 3 mins
https://www.tentwothree.com/platinum_jewelry_information.asp
Many estate jewelry hallmarks will be PT900, indicating that the metal is 900 parts per 1000 of pure platinum. The remaining 100 part are usually made with iridium which makes the jewelry harder. 900 Plat - 100Irid - means platinum alloyed with 10% iridium. PT850 - platinum at 85% . Pt also the chemical symbol - mark for platinum. PLATINUM - indicating mainly platinum. Platine - French or Canadian …
https://www.leaf.tv/articles/what-are-some-identifying-marks-on-a-platinum-ring/
Such a ring may simply read "Platinum," "Plat" or "Pt," or may be marked "95% Plat," "950 Plat" or "950 Pt." Rings containing 850 or more parts pure platinum may be described as "platinum" if they use the number "850," or "85% or more" to qualify "Platinum" or its abbreviation in the content marking. Abbreviation marks for other PGMs include: "Plat."
https://www.invaluable.com/blog/guide-to-jewelry-marks/
Apr 06, 2020 · When considering platinum jewelry, the purity mark “950” denotes a composition of 95 percent platinum with a mix of other metal alloys, while “900” is made up of 90 percent platinum, and “850” has 85 percent platinum. Maker’s Marks
https://www.sellyourgold.com/faq/my-items-gold-silver-or-platinum
A 'house' shaped mark is used for platinum items. The number inside the shape is called the millesimal stamp number - this will tell you the actual precious metal content or the purity of the precious metal. Please note - different countries may have different hallmarking standards so the marking you see on your items may differ.
https://www.upcounsel.com/jewelry-trademarks
Oct 30, 2020 · Here are some of the most common hallmarks or purity marks: Platinum is usually stamped with the abbreviation PLAT or PT. Gold-filled jewelry is covered with a layer of at least 10-karat gold, and it's often stamped with G.F. or R.G.F. G.E. stands for Gold Electroplate. Pure gold is 24 karats, and it's stamped with 999 or 24k.
http://www.amaterracrianza.com/jewelry-makers-marks-in-alphabetical-order/
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https://www.yellowpages.com/champaign-il/gold-silver-platinum-buyers-dealers
JELCO Supply. Gold, Silver & Platinum Buyers & Dealers Guns & Gunsmiths Safes & Vaults. Website. (217) 321-1818. 103 N Sangamon. Gibson City, IL 60936. From Business: JELCO Supply, in Gibson City, IL, is the leading gun shop serving Farmer City, Champaign, Bloomington, Peoria, Springfield and surrounding areas.
https://www.yellowpages.com/champaign-il/gold-buyers
Website Directions More Info. (217) 903-2390. 41 E Main St. Champaign, IL 61820. From Business: Gold Rush ll is a pawnbroker located in downtown Champaign, IL. We specialize in buying and selling items such as jewelry, instruments, tools and much more. We….
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