| Product Categories | Engagement rings, wedding bands, loose diamonds, diamond and gemstone jewellery; Design Your Own customisation | Fine and high jewellery, watches, leather goods, sunglasses and eyeglasses | — | — |
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| Signature Collections | — | Jewellery: Love, Juste un Clou, Panthère de Cartier; Watches: Tank, Santos de Cartier, Ballon Bleu, Pasha, Panthère | — | — |
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| Watch Movements | — | Quartz, high-autonomy quartz (approx. 8-year battery on select Must de Cartier models) and mechanical, incl. manual-winding (select models) | — | — |
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| Price Positioning | Fine jewellery; online-first retailer with US showrooms | Luxury; part of the Richemont luxury group | — | — |
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| Warranty | Limited lifetime warranty on gold and platinum jewellery US$1,000+ against manufacturing defects; one free resize within 6 months | Watches: 24-month International Cartier Guarantee against manufacturing defects (separate terms in US, Canada, Australia); Cartier Care registration extends total cover to up to 8 years | — | — |
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| Servicing & Repairs | — | Watch repairs carry their own 24-month warranty; Cartier Care members get complimentary technical diagnostics and advice | — | — |
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| Personalisation & Engraving | Engraving and custom Design Your Own pieces (non-returnable) | Personalisation offered on select items (e.g. leather goods); engraved or personalised creations cannot be returned | — | — |
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| Responsible Sourcing | — | One of 14 founding members of the Responsible Jewellery Council (2005); RJC-certified, re-certified for the fourth time in 2019 | — | — |
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| Returns Policy | 30 days from shipment, free returns (2 free return shipments per year); engraved, custom, resized and final-sale items excluded; international return airway bill | e-Boutique (e.g. EU sites): request return within 30 days of delivery, unused with tags; engraved/personalised items excluded; terms vary by country | — | — |
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| Founded | 1999, US (online diamond retailer); showrooms in several US states | 1847, Paris, France | — | — |
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| Parent Company | Signet Jewelers (acquired 2022) | Richemont | — | — |
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| Key Materials | Gold and platinum settings; silver, pearl and alternative-metal pieces also sold | — | — | — |
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| Diamond Types | Natural, coloured and lab-grown diamonds | — | — | — |
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| Diamond Certification | Grading reports from labs such as GIA and IGI; new lab-grown stones graded by GCAL | — | — | — |
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