At Tiffany & Co., every diamond begins with a commitment to rarity and ends in unmatched brilliance. We accept only the top fraction of gem-quality stones – less than 0.04% – selected for exceptional colour, clarity and natural beauty. Defined by cut, every round brilliant diamond of 0.18 carats or more is graded triple excellent, the highest standard for cut, polish and symmetry, maximising brilliance and light return.
Leading the World of Diamond Traceability
Unlike many jewellers, Tiffany & Co. cuts many of its diamonds in-house, reinforcing its leadership in diamond traceability. Through the Diamond Craft Journey, the House shares where its diamonds are sourced, cut, polished, graded and set – reflecting a deep commitment to transparency and social and environmental responsibility.
Tiffany & Co. creations are designed to stay with you for a lifetime, supported by services that ensure their beauty endures for generations. The House proudly stands behind the value of all its serialized diamonds by offering a Full Lifetime Warranty and complimentary premium care – ensuring not only exceptional craft and artistry but a lasting relationship built on trust and care.
With the introduction of the Tiffany® Setting engagement ring in 1886, the House transformed a diamond ring into a universal symbol of love, an act that forever changed the language of connection. This iconic design features a six-prong setting that lifts the diamond above the band for maximum brilliance. All Tiffany® Setting round brilliant diamonds receive a triple excellent grade, which results in sparkle beyond compare.
Tiffany & Co. promises to be with our clients through their life journeys and every milestone and celebration. With the Tiffany Diamond Promise, Tiffany & Co. grows with you, offering flexibility to transform your original individually registered diamond creation into a new one. The value of the original piece goes toward the new one, which must be at least twice the value of the original creation.
When you are ready, schedule a private appointment and bring your diamond to a nearby Tiffany & Co. store to begin your upgrade.
The Tiffany Ring Studio
One-of-a-kind Love
Create a ring that is uniquely yours at the Tiffany Ring Studio. From diamond shape to setting and precious metal, every detail is designed to reflect your story. Because no two loves, and no two Tiffany rings, are ever the same.