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with proper care, your jewelry will retain its beauty and character, but please be careful. 925 sterling silver can tarnish - it's normal for gold-plated pieces to lose its color. exposure to salty air and sulfur-containing products, such as rubber bands and some papers, will accelerate this process.

avoid exposing gold-plated jewelry to household products, makeup, perfume, hairspray, body oils, water and other substances that will quickly cause gold to discolor. please avoid humidity or heat as these can cause tarnishing. our sterling silver jewelry has a rhodium-plated bar to protect the 925 sterling silver from exposure and help reduce long-term tarnishing. storage is also important. we recommend that you store your jewelry in a properly lined box or pouch, such as the one we offer, when not in use. do not leave it in a room with high humidity.

clean your CINCO pieces frequently with a clean, soft cloth. you can also use a mild detergent with warm water and a soft toothbrush, rinse with clear water and dry with a soft cloth. this way, your pieces will keep their shine for longer. don't forget that your skin's ph level can sometimes exacerbate changes in gold-plated jewelry. silver and gold plating services are available.

please contact customer service at if you would like to have your jewelry polished.

our 19.2 karat and 18 karat gold pieces can be worn forever, they will never fade. if you see any kind of change, you can use a soft, non-abrasive cloth and rub the area until it's gone. if you want to clean your 18 karat or 19.2 karat gold pieces, you can mix a few drops of detergent free soap with warm water and soak your jewelry one piece at a time. then use a very soft brush to gently clean each piece. finally, dry the jewelry lightly with a soft, non-abrasive cloth or paper towel.

all our pieces are hallmarked for authenticity and certified by the INCM. all pieces are made in portugal, with silver sterling 925, silver 925 with gold plated, 19.2 ct gold or 18ct gold. CINCO pieces are certified by INCM - imprensa nacional - casa da moeda, S.A. INCM provide this assurance by checking the legal touch (precious metal per thousand contained in an alloy) and the application of contrast with the responsibility mark, manufacturer or equivalent.

here is the link to the website of the banco de portugal, where you can access information on the daily price of gold, silver, platinum and palladium: quotation. all items are legally marked where applicable. all items are made of 925 silver or 18ct gold, unless otherwise stated. the buyer may, in case of doubt as to the authenticity of the marks, use the services of contrastarias for verification purposes.

the website is managed by Furtado & Pereira, Lda. with VAT number PT515204323, CAE 47910, jewelry Retailer Number Website T0985. at the banco de portugal you can access information on daily prices for gold, silver, platinum and palladium.

in case of doubt, please contact us at

please check here the legal trademarks of portuguese INCM.


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