US size 6 1/2. Platinum is a precious metal that is usually mixed with other similar metals. CONDITION: Shows normal wear - no dents. Measures 7'' and weighs 11.2 grams. 900 Plat., size 4, 2.4 dwt. Plain band stamped ".900 Plat., .100 Irid." - 2.7 grams; Size 6. Platinum Style: Solitaire with Side Accent Markings: 100 IRID/900 PLAT; tested and guaranteed as Platinum Certification: EGL USA Ring Size: 6.50 Ring Width: 5.6mm tapering to 2mm Era: Antique - Art Deco Condition: This ring is in excellent condition. Kimberly_Starbard February 15, 2006, 12:04am #10 Platinum is a precious metal that is usually mixed with other similar metals. From show-stopping cocktail numbers to distinctive dinner rings, simple solitaires and sparkling bands, our many antique diamond rings include practically every configuration of that favorite stone. If stamped Plat, it is 95% pure. TOP RESALE VALUE . If 10% alloyed, the stamp will read 900 Plat 100 Irid., 10% Irid. Use a magnifying glass or a jeweler's loupe to study the markings on the ring. Platinum is 1.6 times heavier . COMPOSITION: Platinum, Acid tested. 1070. The face has diamonds on each of the number markers and the hands are silver in color. "This is a wedding band from 1923. If the shank has a visible, "PT" symbol, reads "900 PLAT"or has "950 PLAT" markings, then the ring is definitely platinum. The amount we offer for scrap gold and broken or unwanted jewelry is based on the current market value of precious metals, which is currently the highest in years. Diameter of top is a little over 1/2 inch. Just 5 percent of an alloy metal can give soft platinum the necessary hardness for a ring, according to 1 Wedding Band. (this rate applies to all items regardless of size or value). For example, the marking 900 Platinum (as well as the marking 900 PT, 900 PLAT, PT900 or 900 Plat 100 Irid) means that the item is 90 percent platinum and 10 percent other metals. 2.74 ctw Diamond All Original Art Deco Elongated Dinner Ring Platinum. Accenting are twenty single cut diamonds of SI1-Il clarity and I color with a total . Research the worth of your items without sending photos or descriptions . Does not include any other metals that may have been used to alloy. Cocktail Rings. The bezel & bracelet consist of. I do not see the inside of the back cover but my guess is that it reads, "Hamilton W Co., Lancaster, Pa., .100 Irid., and .900 Plat.". For example, the marking 900 Platinum (as well as the marking 900 PT, 900 PLAT, PT900 or 900 Plat 100 Irid) means that the item is 90 percent platinum and 10 percent . Sing size 6.5. (buy chain necklace) ANTIQUE BANGLE BRACELETS (6 . 6 - 1902 ANTIQUE CUSTOM STORE DISPLAY CHEST/CABINET This is a Wonderful Store Display Specialty Cabinet. total diamond weight 1ct, marked 900 Plat.100 Irid and illegible designer mark. . This alloy was stamped IRIDPLAT. All pieces shipped insured via USPS Priority Mail requiring signature upon delivery. Free sizing, please inquire if needed! Platinum is one of the heaviest wedding and engagement ring metals. 6.5in . The remaining 100 part are usually made with iridium which makes the jewelry harder. A beautiful diamond engagement ring from the Retro (ca1940) era! size 4 3/4. Clarity looks decent- maybe even SI- and color may be around I/J. Please inquire if needed. Clarity Grade: SI1. 900 platinum engagement ring featuring a 0.78 carat round brilliant diamond and 0.22 carats of single cut diamonds. 4. TOP RESALE VALUE Chanel Louis Vuitton Herms Gucci Cartier Rolex Goyard Tiffany & Co. Christian Dior Saint Laurent Fendi Van Cleef & Arpels Patek Philippe. The wide ring is crafted of platinum and exhibits 2 high quality bezel set old mine cut natural diamond's positioned north and south of each other on the ring's face. It means 90 % platinum, and 10 % Iridum, a low tarnishing metal that platinum is mixed with.nowadays, platinum jewelry is 95% platinum, and 5 % Iridium,and the stamp is usually "PT' for Platinum and 'Irid".Thats a beautiful ring,bids will probably go thru the roof. . 900 PLAT. My first platinum and first iridium for that matter Old tiny ring, the stamping is worn on the inside from wear. Previous Index Next If this is the case, it must contain at least 50% pure platinum. . And the crucial difference, at least to my understanding, is whether In our cases you'll find the greatest variety of vintage and antique diamond rings in San Francisco spanning every era. Userpaul6127 New member Username: Userpaul6127 Post Number: 1 . Set to the front with three rows of single cut diamonds Total diamond weight approximately 0.80 carat, GHI color and VS to SI clarity Bead set with polished platinum detail Stamped 100 IRID .900 PLAT Ring Size: 6 3/4 & Sizable Top measures 6.3 mm and sits 3.4 mm high Total Weight: 3.7 Grams Sweet. Title and edition number TC-7 and #30A and 30B. 1) 95% platinum (950) - alloyed with 5% iridium - Vickers hardness = 80 Iridium has an atomic weight of 192.217 - pretty close to that of platinum. Est. Score! from $3,572. For example, a piece of jewelry containing 90% platinum will be marked, 900 Pt or 900 Plat. Hebe Platinum and Diamond Case Wrist Watch Art Deco style having bezel adorned by round and baguette cut diamonds, 17-jewel movement, inside of case marked 'Hebe Watch SA', having metal accented, double looped black cord band; back of case marked '900 Plat. THE 14 DIAMONDS TOTAL APPROX. 900 platinum and. 900 Plat - 100Irid - means platinum alloyed with 10% iridium. The most common platinum alloys include 90% platinum and 10% iridium, or 95% platinum and 5% ruthenium. When the platinum stamping regulations were revised, this alloy was then stamped 900Pt or 900PLAT or Pt 900. The ring is hallmarked "900 PLAT 100 IRID" and "Granat Bros" For example, the marking 900 Platinum (as well as the marking 900 PT, 900 PLAT, PT900 or 900 Plat 100 Irid) means that the item is 90 percent platinum and 10 percent other metals. The Hallmarking Act of 1973 requires all precious metal items sold in the UK to carry a valid hallmark. The platinum scrap calculator will show you the price for 100% pure platinum, unless you indicate a lower percentage. The prong-set diamond exhibits G color and SI1 clarity and weighs approximately 0.51ctw. Answer (1 of 4): Ummm nothing personal, but are you insane??? See pictures: Resizable: Yes: Retail Value: $4,320 Additional Info Has initials of CL and 1902 on the . . The default representation of Platinum price is usually in Troy Ounces, but . 100 IRID 900 Plat . The jeweler would have to begin with a heavier mass of platinum in order to have room for shaping and whittling, down to your desired mass and design. After you accept our offer, we do the necessary paperwork and . is an option for us even though that particular alloy might not follow 'international standards' due to lower content of platinum. Girdle Thickness: Very Thin to Thick Faceted & Polished. For Sale on 1stDibs - Circa 1930's Old European Cut Diamond Ring Style: Three-Stone Serial Number: GIA2195850262 & GIA6193850254 Metal: Platinum Size: 6 - sizable Total Carat Art Deco Old European Cuts Platinum Diamond Ring 4.52 Carat GIA Certified For Sale at 1stDibs However, treatment may lower the value of the gem and may require special care to maintain the gem's appearance. The ring is marked "900 PLAT 100 IRID." This ring is sizable. Platinum. LADY'S LOVELY DIAMOND PLATINUM RING: 1920's platinum filigree ring set with 88pt center diamond (purportedly G VSI), with 8 round and two marquise cut accent diamonds, approx. .70 carat diamonds, 48 in all. Has "initials" to "initials" and a date of '39. inscribed in fancy script. THIS PLATINUM RING HAS A MANUFACTURERS MARK "LOVEBRIGHT" ON THE BAND. The chart above shows the price of Platinum in USD per Gram for Today. Crafted in heirloom-quality 900 platinum, this exquisite vintage engagement piece showcases a sparkling diamond solitaire beautifully accompanied by milgrain-outlined accent diamonds which grace the ring's knife-edge band. 1930s Art Deco watch, 14K white gold w/ appx. 1.9g 10% IRID PLAT with 10 little diamonds (imagine they're real). Material info: Solid Platinum (900)Total Gram Weight: 41.3 GramsClasp: Folder Over Interlocking with Safety ChainBrand: HamiltonMovement: Swiss Quartz, 6 JewelsEra: 1940sCrystal: PlasticDial: White with Silver Arabic and Dot . 900 platinum engagement ring featuring a 0.78 carat round brilliant diamond and 0.22 carats of single cut diamonds. The piece is in overall very good pre-owned condition; there's an indent on the side of the case - shown in picture. Makers commonly alloy platinum with the PGM metalspalladium, ruthenium and iridium. Different markings are used on platinum jewelry based on the amount of pure platinum in the piece. If a jewelry piece is marked as "900 platinum", "900 pt", "900 plat", "pt 900", or "900 plat 100 irid" this simply means the item is 90% platinum and 10% other metals. You can select the millesimal fineness from the drop-down list, or just enter a numerical value in the platinum purity text box. 9.3 Value Added Tax on the Hammer Price is imposed on all items affixed with an asterisk thus - *. Custom Review. Resting on either side of the center stone is a row o Good Value. family, such as cobalt, copper etc. with small diamond accents, stamped 100 Irid. Marked.100 IRID. Center diamond has an estimated weight of .43-carat, F color, and VVS2 clarity. You must ship the package back to us, insured for the retail value, and pack the items safely and securely. That makes the tea 900 parts per thousand of your mix. Sometimes the alloying metal is ruthenium or even cobalt because they provide an . Platinum. These alloys tend to be stronger due to the ruthenium. Bid on Platinum Iridium star sapphire ring sold at auction by Pook & Pook Inc. 1793 on 6th May Platinum Iridium star sapphire ring, . VS clarity.Stamped HAMILTON '100 irid 900 plat'.Length of watch head 4.2cms. Buying from a knowledgeable jewelry professional is your key to finding the best-quality diamond for the greatest value. While this ring dates to around 1990, it is created with all the finesse of one made 70 years earlier. How to Sell. A ladies platinum and diamond Art Deco cocktail watch by the Swiss watchmaking brand, Blancpain, the oldest watch brand in the world. The band tapers from 3.5mm at the shoulder to 1.3mm wide at the back of the band. The setting is solid platinum and is signed "PT" and "900", "100 IRID". The most common marks for platinum are "900 PT, 900 PLAT, PT900 and 900 Plat 100 Irid," which signifies the percentage of . A 900PLAT ring will usually be alloyed with iridium or palladium. We do not mark merchandise values below value or mark items as "gifts" - US and International government regulations prohibit such behavior.--> 900 Platinum Featuring 0.45 Carats of Round Brilliant Diamonds 10.-10.5mm Fancy Near-Round Dyed Cultured Pearls & 9.5-10.5 White Semi-Baroque Cultured Pearls . Platinum content is usually expressed as the amount of pure platinum the jewelry contains in parts per thousand. Auction Information ONLINE ESTATE AUCTION*FURNITURE*ANTIQUES*COLLECTIB. Just a few examples are shown below. Engraved . Metal Type: 900 Platinum; Marks: PLAT, IRID, Maker's Mark; Total Item Weight (g): 5.1; Gemstone: Diamond; Carat Weight: 0.72; Stone Count: 16; Stone Shape: Old European Cut; Pt 900 or Plat 900 or Plat or 90/10 Pt/Ir or 900 Pt 100 Ir or Platinum, these markings refer to the most common alloy of platinum which is 90% pure. [more like this] JEWELRY. Stamps: 100 IRID. Look on the inner shank of the ring for any detailed letters or numbers. Fast Fun Facts About Platinum Rings! Hamilton Platinum and Diamond Lady's Watch,Hamilton Platinum and Diamond Lady's Watch, underside of case marked "900 PLAT / .100 IRID", set with (24) round brilliant cut diamonds weighing . Approx. One ladies platinum dinner ring. You can access information on the Platinum price in British Pounds (GBP), Euros (EUR) and US Dollars (USD) in a wide variety of time frames from live prices to all time history. Calculator only figures the total value and weight of the platinum portion of your items. He thought that it is white gold but upon inspection, I located a platinum jeweler's stamp - "900 Plat 100 Irid". Size & Measurements: The ring is a size 8 (sizable). Nothing wrong with that but they do behave more like tool steel than precious metals when finished: Typical platinum 950/900 alloys finish between 80-135 HV when cast. Hallmarks that you may find are 10 Irid 90 Plat, 100 Irid 900 Plat, 10% Irid 90% Plat, or other variations. The watchcase is stamped "KO 900 Plat 100 Irid" and numbered "115557." The watch and bracelet are set with round cut and marquise diamonds. CONDITION: Estate Item, Very Good. SIZE: 6. A great piece at an even better price - at least 70% off retail. lady's platinum-diamond engagement ring: 1.84dwt plat-900, 1-round brilliant cut diamond 0.57ctw, 2-round brilliant cut diamond 0.10ctw size:4.5, hallmark: .900 plat .100 irid Buy it Now Add to Cart 14kt Gold, Diamond, and Emerald . We value your privacy! Material info: Solid Platinum (900)Total Gram Weight: 41.3 GramsClasp: Folder Over Interlocking with Safety ChainBrand: HamiltonMovement: Swiss Quartz, 6 JewelsEra: 1940sCrystal: PlasticDial: White with Silver Arabic and Dot . After examining your items, we make you an offer. Once the shipper has your items, please allow 3-5 business days for . Clasp is marked 900 PLAT and 100 IRID. TOP RESALE VALUE . This learning path helps prepare you for Exam PL-900: Microsoft Power Platform . Learn the business value and product capabilities of Microsoft Power Platform. Usually jewelry and rings are often 10% iridium and 90% platinum. A STAMPED 900 PLAT-100 IRID DIAMOND RING. Research the value of your own items: . Description: This vintage Art Deco diamond ring is absolutely ravishing as it is nearly 100 years old and is in impeccable condition. This beautiful piece is made of platinum and holds a gorgeous old European Cut diamond at the center. 1071. 900 Platinum; Marks: PLAT, IRID; Metal Finish: High Polish, Milgrain; Total Item Weight (g): 4.1; Center Stone: Yes; 100 Irid.' Length: 6 inches, Diameter: 3/8 inchesWeight: 0.35 ozt. . If you're jewelry is simply marked "platinum", it is at least 95% pure (950 Plat). THE RING IS CIRCA 1950's AND IS IN EXCELLENT CONDITION. Change Background. . The ring features a round brilliant-cut diamond measuring 6.46 - 6.57 x 3.88 mm and weighing 1.02 carats, enhanced by baguette and single-cut diamonds weighing a total of approximately 0.20 carat, set in platinum. 900 Plat., maker's hallmark Condition: Pre-Owned Condition Note: Professionally Cleaned and Polished. Elongating any finger, this north south oriented ring takes its cues from the Art Deco era's architecture and design. It is accented on either side by two smaller diamonds weighing approximately .10-carat, H color, and VS2 clarity. The inside of the band is stamped 900 Plat 100 Irid next to a makers mark that looks like a pi symbol inside a circle and weighs 3.3 grams. COMPOSITION: Platinum, Acid tested . 100 iridium with single cut & baguette cut diamonds in beaded accented settings. Weighs 5.7g. 14.8gms.Condition Report:Dial shows discolouration and dirt.Diamonds appear bright and well matched.The watch does not appear to be currently ticking.Free virtual . This ring is a size 7, but it can be re-sized up 3 sizes for a $40 fee per size or down 1 size for a $40 fee. In 1998 we established Diamond Ten, our internet division. Made 1920-30. COMMENTS: This lovely Edwardian engagement ring features a 0.93ct transitional round cut diamond. This rings dates to the 1940s and is in very good condition with light surface wear! . The other 10% is most commonly iridium which is added to increase the hardness and thus durability of the platinum. Vivi We'll need just over 5% of the VOLUME of our platinum - in iridium - to make our "950" blend. Resizing such a ring would immediately destroy any historical significance and value it would have. . Take the time to be educated about diamonds so you will understand where the best value is and why. If what you have is a genuine 2000 year old artifact, why on Gods green earth would you want to alter it???? . Pretty shallow, maybe and inch deep. (this rate applies to all items regardless of size or value). (double heart drop earrings) . Think about it like this: you mix up a huge bucket of fruit tea that contains 1,000 ounces--900 hundred of the ounces are plain tea and 100 are fruit juice. An 850PLAT ring will usually be alloyed with palladium. Platinum hallmarks have existed optionally for some time, but it was officially fist hallmarked in 1973. . . . Total Platinum Value: (USD - U.S. Dollar) $0.00 Total Platinum Weight 5% Price Spread (USD) Resultant values will be rounded to two or more decimal places depending on length. Girdle Thickness: Very Thin to Thick Faceted & Polished. Understated. Movement by Hampden, marked Swiss. The exemptions are platinum items under 0.5 grams, gold items under 1 gram, silver under 7.78 grams and palladium under 1 gram. Sometimes it will be listed as IRIDPLAT to indicate a mix of 100 parts iridium and 900 parts platinum. The transitional cut diamond was the transition between and Old European . The total platinum value is figured from the currency amount in the Platinum Price text box. Less than 85% platinum will often be listed with the quantity of palladium or other metal, such as "585PLAT 415PALL." 2 SIZE: 5 3/4 Ring can be sized for an additional fee. This beautiful platinum ring holds a heart-shaped diamond that is prong set at the center. For example, "IRID/PLAT" is 90% platinum and 10% iridium (PT900) by weight. Pt999 finishes at 215 HV which is in the same range as stainless steel and titanium jewelry (200-250 HV), nickel WG and cold-worked Pt/Ru. An estimate of an item's value, usually made by an educated professional. 14K extensions. Marked.100 IRID. Copper and cobalt are also commonly alloyed with platinum for polishing ability and color. Probably not a whole lot more than the value of the gold itself. . Silver. But leave room for disc. View. The value is suggested retail or estimated replacement value rather than what is generally paid for the item. Center round brilliant cut stone is .95 ct F color, I-2 clarity. PLATINUM BAND. Just come into our shop with the items you want to sell. Bid on Platinum Iridium star sapphire ring sold at auction by Pook & Pook Inc. 1793 on 6th May Platinum Iridium star sapphire ring, . Create simple Power Apps, connect data with Microsoft Dataverse, build a Power BI Dashboard, automate a process with Power Automate, and build a chatbot with Power Virtual Agents. Diamond Sapphire Three Stone Platinum Engagement Ring GIA Certified Stock # 38916 Beautiful three stone diamond and sapphire ring is handcrafted in platinum. Antique Art Deco platinum and diamond watch set in a ring. One ladies platinum dinner ring. 900/100 Iridium, an alloy containing 900 ppt platinum and 100 ppt Iridium. Even 900 pl/100 irid. Gross weight 4.10 grams. Crafted of solid platinum, this elegant diamond-encrusted ladies Hamilton wristwatch is absolutely irresistible. Platinum is a precious metal that is usually mixed with other similar metals. It gives platinum an even harder-wearing durability. 900 Platinum; Marks: 10%IRID; Metal Finish: High Polish; Total Item Weight (g): 10.0; If I had such a ring, I w. 900 Platinum; Marks: PLAT, IRID; Metal Finish: High Polish, Milgrain; Total Item Weight (g): 4.1; Center Stone: Yes; 900 Plat., size 4, 2.4 dwt. Solid 6 in Park 1, 50 tones. 2.6 GRAMS AND IS SIZEABLE AT L & M. Buyer's Premium 19% up to $50,000.00 Answer (1 of 2): Or if you mean you want the ring to be of a specific mass after it has been made, that could be done too. The words silver or sterile silver indicate a . Platinum engagement ring w/ fishtail illusion setting c.1930s. John. Fine platinum with mille grain accents (beaded edges), filigree open work, and lovely diamonds strike a chic chord. If the ring shows a 9K, 10K, 14K, 18K, 22K, with or without a series of . Antique And Vintage Jewelry ~ Rare & Unique Finds At Value Prices . PT850 - platinum at 85% Pt also the chemical symbol - mark for platinum Markings: 100 IRID 900 PLAT . Particulars: Weight: 4.2 grams Stones: Single cut diamonds total an estimated 0.25 carats (estimated at G-H color and VS2-SI1 clarity). Instant price guides to discover the market value for bailey banks biddle watch . Centering an old European cut diamond, basket set, weighing approximately 0.45 carat; J color with VS clarity Flanked by fishtail set single cut diamonds weighing approximately 0.08 carat total, G/H color and VS clarity Completed by deeply grooved shoulders with sweet milgrain detail Stamped 900 PLAT 100 IRID for platinum Circa: 1940s Other jewelry may also be marked "platinum" if it contains at least 95% of platinum group metals. The back of the case usually will be able to snap open and the platinum back cover is marked, "Hamilton, 10% Irid, Plat." There is a thin white gold fluted winding crown, the original one. Many estate jewelry hallmarks will be PT900, indicating that the metal is 900 parts per 1000 of pure platinum. A GIA report # 5201468855 dated July 24, 2019 stating D color, VVS2 clarity, accompanies the center stone. ITEM: Vintage Platinum Elongated Diamond Dinner Ring . Band marked platinum, cut band marked 900 plat. . Canadian coins with total face value of $36.50 including WWII era nickels, dollar and 50-cent coins, 1967 nickels and more with most in individual cardboard flips together with over (60) assorted w .