As with coins and baseball cards, in recent years some stamp collectors have started submitting their stamps to grading agencies for "expertising". Some of the well-known organizations which issue certs for stamps include PSE, Weiss, PF and APS.

Some stamps will be sold with an existing cert, and other sellers will offer the buyer the opportunity to have a stamp graded and examined by a third party before completing the transaction. As with any collecting purchase, cert or not, caveat emptor!


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Most watched eBay auctions    

U.s. #130 Scarce Unused W/cert - 1875 24c Pictorial Reissue ($900)1869 Usa Sc# 120, 30c Shield Eagle & Flags, Cv $525.00, Color CertificateU.s. #33 Rare Mint W/cert - 10c Green, Type Iii ($6,000)Hawaii, #26, Unused, Hps Cert. Hawaiian1869 Usa Sc# 119, 15c Columbus Landing, Cv $275.00, Color CertificateUs Stamp:#10x1 5c Gray Black Providence, R.i.1898 Genuine Stamp + Certificate# 112, Unused, Vf, Ng. Weiss Cert. Cv $ 225.00Us Scott R33a 10c Certificate First Issue Revenue Stamp S39rU.s. #9 Choice Used Vf W/cert - 1c Blue, Ty Iv ($95)# 124, Unused, Vf, Og. Special Printing. Weiss Cert. Cv $ 650.00#7 On 1852 Fredericksburg, Va Cover - Corner Margin Aps Certificate - Pos 1l1eU.s. #341 Choice Mint Vf W/cert - 50c Light Violet ($300)U.s. #217 Mint Beauty W/cert - 30c Orange Brown ($250)Us#36 Used 12 Cent Pse Cert Cv$325.00Hawaii Mcbryde Stock Cert W/2 #r8 1899Nystamps Us Cut Square Stamp # U105 Mint $160 W/cert#446, Coil Pair, Mint, Never Hinged, Orig. Gum, Pse Cert., Catalog Value= 650.001870 Mammoth Vein Coal & Iron Co. Stock Certificate Signed By Rep Franklin GowenUs#98 Used 15 Cent Pse Cert G50/ Cv$330.00Nystamps Us Stamp # 68 76 On Cover $240 W/cert 622 Mint Stamp With Pse Certificate GradedNystamps Us Canal Zone Stamp # 52a Mint Og H $175 W/certDr Jim Stamps Old Us Revenue Scott R24 5c Certificate Natl Bank Michigan Cancel{wcstamps} U.s. #658-679 / $474 - Mh Nebraska & Kansas Set W/ Cert, #238 UsedB0720: Us #64b On 1861 Cover, Pf Certificate; Cv $180Scott #909c Mint Nh Graded Pse Certificate Xf-superb 95Us Scott R44b 25c Certificate First Issue Revenue Stamp S57rDr Jim Stamps Old Us Revenue Scott R24 5c Certificate Natl Bank Michigan Cancel1610b Tan, Orange & Yellow Colors Omitted - Pfc Certificate - Mnh - Stuart KatzC-7 Mint Air Mail Stamp With Pse Certificate GradedC-8 Mint Airmail Stamp With Pse Certificate GradedU.s. #501 Choice Mint Xf Nh W/cert - 3c Violet, Type IU.s. #511 Choice Mint Xf Nh W/cert - 11c Deep Green, P11U.s. #610 Choice Mint Superb Nh W/cert - 2c HardingU.s. #744 Mint Superb Nh Jumbo W/cert - 1934 5c ParkHand Painted - Kendal Bevil Cachet - 1998 Frank Sinatra Death - Singer W CertC-8 Mint Airmail Stamp With Pse Certificate GradedMr Fancy Cancel Scott 11a Boston New Orleans 1852 Fls Certificate #4783U.s. #577 Choice Mint Superb Nh W/cert - 2c Carmine ImperfU.s. #622 Choice Nh Xf W/cert- 1923 13c Harrison #r44c 25 Cents Certificate Revenue Stamp Mint F-vf H Ng A#r24c 5 Cents Certificate Revenue Stamp Used BSb1 Stamps - 1879 15c Webster W/2015 Weiss Cert.; Sc. 189; Vf/mnhDr Jim Stamps Old Us Revenue Scott R44 25c Certificate Used No Reserve