Taylor Swift’s Engagement Ring: The Diamond, the Designer, and the Cut Behind the Design

Taylor Swift’s engagement ring is built around a diamond cut roughly a century before the round brilliant existed. The center stone is an antique old mine cut in an elongated cushion outline, set into a hand-engraved yellow gold band by designer Kindred Lubeck of Artifex Fine Jewelry. No modern ideal-cut sparkle, no mass-produced setting — the ring reads as a specific, considered object rather than a category of jewelry. Here is what is actually known about the diamond, the designer, the setting, and the estimated cost, along with what the choice says about where fine jewelry design is heading.

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Taylor Swift Engagement Ring: Diamond, Designer, and Cost

Travis Kelce proposed to Taylor Swift on August 10, 2025, at his home in Lee’s Summit, Missouri. The couple confirmed the engagement publicly on August 26, 2025. None of the figures below have been officially released by Swift, Kelce, or Artifex Fine Jewelry — every measurement and estimate comes from jewelry experts and reporters who reviewed public photos.

Who Designed the Ring: Kindred Lubeck

Kindred Lubeck is the founder of Artifex Fine Jewelry, a New York-based studio built around hand engraving. She did not train as a jeweler first. Lubeck holds a psychology degree from Florida State University and moved into jewelry design in 2019, then became focused on hand engraving specifically after taking a class in 2021 — a technique she has since made central to her work.

Kelce reportedly commissioned the ring directly with Lubeck. According to NBC News, Swift had shown Kelce a video of Lubeck’s work roughly eighteen months before the proposal — meaning the design brief was informed by Swift’s own taste well in advance, rather than assembled last-minute. Swift has said she was struck that Kelce had been “paying attention to everything,” which is really a comment about the design process as much as the relationship: a bespoke piece only works when the brief starts with the wearer, not the trend.

Lubeck’s own framing of her process is structural rather than sentimental: “If I’m not inspired by the stone, I cannot make the piece of jewelry.” That is a statement about designing around a specific diamond’s proportions and character, not toward a generic template — the same logic behind any CAD-based custom process, including our own.

Considering an antique or vintage-cut diamond? Our Toronto studio sources and grades diamonds by cut performance first, then builds the setting around the specific stone. See our engagement ring process in Toronto →

What an Old Mine Cut Diamond Actually Is

An old mine cut is not a modern cushion cut with a vintage label attached. It is a distinct, antique cutting style, produced primarily during the Georgian, Victorian, and Edwardian eras — roughly the 1700s through the early 1900s — before diamond cutting was standardized around light-return mathematics. The result is a squarer, more rounded outline than a modern cushion, a noticeably larger open culet (a flat facet at the base rather than a sharp point), and fewer, larger facets overall.

That structural difference changes how the stone behaves in light. A modern round brilliant is engineered for maximum, high-contrast sparkle under bright, direct light. An old mine cut produces something quieter: broader flashes rather than pinpoint fire, and a warmth that reads differently — most noticeably under candlelight or soft indoor light, which is exactly the condition these stones were originally cut to be seen in.

Inclusions read differently too. In a modern graded diamond, inclusions are scored against a clarity scale as a value factor. In an antique stone like this one, jewelry historians tend to describe the same features as evidence of the stone’s individual history — a hand-cut origin rather than a machine-calibrated one. As one gemology expert put it in Sotheby’s coverage of the ring, these stones “were made at a time when cutting styles weren’t so precise,” which is precisely what gives each one a character that a modern, mathematically consistent cut does not have.

Structural note: Choosing an old mine or old European cut diamond today is a cut decision, not a nostalgia decision. It trades some measured brilliance for a specific, historically accurate light behavior — the same category of trade-off as choosing a step cut over a brilliant, or a bezel over a prong. It only works when the setting is designed around that particular stone’s proportions, which is why bespoke work suits antique stones better than a stock mounting does.

Taylor Swift’s Engagement Ring Setting: Gold, Engraving, and Structure

The mount is yellow gold, built with a thick, traditional-width band rather than a thin modern shank — a proportion choice that suits the scale of the center stone and echoes the antique era the diamond comes from. Reporting on the ring describes needlepoint-style prongs holding the stone with a bezel-influenced profile, plus hand engraving carried across the shoulders and band, with small diamonds worked into the engraved shoulder detail.

Hand engraving is Lubeck’s signature technique, and it changes the function of the metal itself. On a plain band, the metal is a neutral support for the stone. On an engraved band, the metal becomes a second surface with its own texture and light behavior — which is why the choice of engraving pattern, depth, and placement has to be resolved at the design stage, not added afterward. It is a structural decision about the whole piece, not a decorative finish applied at the end.

How Much Does Taylor Swift’s Engagement Ring Cost?

No price has been confirmed by Swift, Kelce, or Lubeck. Benjamin Khordipour of Estate Diamond Jewelry estimated the ring’s value at approximately $550,000 USD, a figure widely cited in coverage including InStyle’s breakdown of the ring’s cost and design. Khordipour’s reasoning centers on rarity rather than raw carat weight: a large, well-preserved antique cushion-shaped old mine diamond of this size is genuinely difficult to source, since supply is limited to what survives from a specific historical period rather than what can be cut to order.

That distinction matters for anyone pricing a similar stone. A modern diamond’s cost is calculated against the 4Cs on a graded, repeatable scale. An antique stone’s cost is calculated against scarcity, condition, and provenance on top of the same fundamentals — which is why two diamonds of similar carat weight and color can carry very different prices depending on whether one of them happens to be a well-preserved 19th-century cut.

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