PUBLIC BETATiffany & Co
Authenticity Guide — Luxury Jewelry
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How to Authenticate Tiffany & Co
Tiffany Hallmark Verification
Authentic Tiffany & Co. pieces feature precise hallmarks including "Tiffany & Co." spelled out completely, metal purity marks (925, 750, or PT950), and a registered trademark symbol. Post-1965 pieces also include a maker's mark with specific letter-number combinations that correspond to production dates, with the format changing from two letters to alphanumeric codes after 1999.
Sterling Silver Oxidation Pattern
Genuine Tiffany sterling silver (marked .925) develops a characteristic tarnish pattern due to their proprietary alloy blend. Authentic pieces like the Return to Tiffany Heart Tag or Atlas collections show even oxidation in recessed areas. Counterfeit silver often uses lower-grade alloys that tarnish irregularly or remain artificially bright due to excessive rhodium plating.
Blue Box Printing Standards
Authentic Tiffany Blue Boxes use Pantone 1837 Blue (named after their founding year) with specific ribbing texture and white satin ribbon. The box printing shows crisp "TIFFANY & CO." text in Requiem font with precise letter spacing. Modern boxes include acid-free tissue paper and specific box construction with corner joints that align perfectly, while fakes show printing inconsistencies and incorrect blue hues.
Elsa Peretti Signature Details
Elsa Peretti designs like Diamonds by the Yard, Open Heart, and Bean collection feature both "Elsa Peretti" and "Tiffany & Co." engravings with specific depth and font characteristics. Authentic pieces show seamless integration of signature elements into the design, with precise spacing between lettering. The iconic Bean design has a specific curve radius and weight distribution that counterfeits fail to replicate accurately.
Lucida Diamond Cut Authentication
Tiffany's proprietary Lucida cut features a unique square mixed-cut with 50 facets and beveled corners, creating specific light reflection patterns. Engagement rings from the Tiffany Setting collection (introduced 1886) have six platinum prongs with a specific knife-edge design that elevates the diamond at a precise angle. GIA certificates for Tiffany diamonds include Tiffany-specific report numbers and should match the piece's serial number engraved inside the band.
Common Red Flags
- Counterfeit Tiffany pieces often show "TIFFANY" without "& Co." or use incorrect hallmark fonts, particularly missing the registered trademark ® symbol or displaying "925 SILVER" instead of just "925" as authentic pieces show.
- Fake Return to Tiffany heart tags display poorly executed engravings with uneven letter depth, incorrect font weight (too bold or thin), and the phrase "Please Return to Tiffany & Co. New York" with spacing errors or missing periods.
- Imitation Tiffany packaging uses incorrect blue shades (too bright or greenish), features thin ribbons (authentic uses 5/8-inch grosgrain), and shows pixelated or fuzzy logo printing instead of the sharp, letterpress-quality text on genuine boxes.
- Counterfeit Atlas collection pieces display Roman numerals with incorrect proportions, uneven piercing on open designs, and hallmarks placed on outer surfaces rather than the proper interior locations used by Tiffany.
- Fake Tiffany T and HardWear collections show welding marks at connection points, inconsistent brushed finishes, and incorrect weight (often lighter), whereas authentic pieces feature seamless construction and specific heft ratios for each size.
Use this Tiffany & Co guide as a plain-English checklist for photos, serial numbers or date codes, materials, workmanship, paperwork, and when to ask for an expert review.
- Green skin discoloration from plated base metals
- Magnetic attraction (real gold and silver are non-magnetic)
- Inconsistent engraving depth or blurry hallmarks
- Stones that are too uniformly perfect (lab-created)
- Lightweight feel despite appearing to be solid metal
- Compare any Tiffany & Co serial, reference, date-code, hallmark, or production markings against documented examples for the same era and product line.
- Missing, duplicated, poorly stamped, mismatched, or unusual code formats mean the item needs a closer look.
- Inspect stitching, finishing, edge paint, alignment, engraving, hardware weight, font consistency, and material feel under strong light.
- Compare materials and construction to trusted Tiffany & Co examples from the same category, model family, and production period.
- Check packaging, dust bags, receipts, warranty cards, and accessories for print quality, spacing, and consistency with the item era.
- Request original purchase documentation, clear close-up photos, and provenance before relying on marketplace claims.
- Use a qualified independent reviewer for high-value, high-risk, or disputed items.
- Ask FairClose for a closer review when photos, codes, paperwork, or construction details do not line up.
Disclaimer
This authenticity guide is provided for general informational and educational purposes only. FairClose does not directly authenticate items unless expressly stated in a specific listing.
This guide was generated using AI and personalized for Tiffany & Co.