Tiffany® Setting: History, Features and Timeless Appeal of Tiffany & Co.’s Most Iconic Ring
The Tiffany® Setting: Why a 19th-Century Design Still Defines the Engagement Ring Market
Very few pieces of jewellery have reached 140 years of continuous production without a single structural revision. The Tiffany® Setting is one of them. The six-prong mounting introduced in 1886 by Charles Lewis Tiffany was never updated, simplified or replaced — because it has never needed to be. Those looking for a pre-owned Tiffany® Setting ring today are choosing a design that was engineered specifically to make diamonds look their best, not to frame them with decoration.
At ReLusso, every Tiffany & Co. piece is personally selected by Valerio Saltari — gemologist registered with the OAM (no. OCO1836) with over 15 years of hands-on experience — and restored through the Luxurigen™ method before being offered for sale. No two pre-owned examples are identical: carat weight, metal, stone quality and condition all vary, and each piece is assessed on its own merits.
Origins: 1886 and a Technical Choice That Reshaped an Entire Category
In 1886, most diamond rings featured low, closed settings where the stone sat partially embedded in metal. Charles Lewis Tiffany chose a different approach: lifting the diamond above the shank on six slender prongs, creating an open structure that allowed light to enter the stone from every angle. The motivation was optical, not ornamental. More light reaching the facets meant more brilliance returning to the eye — and that was the entire point.
The design was patented and immediately changed how the industry thought about diamond ring architecture. Six prongs distributed the diamond’s weight evenly, held the stone securely, and reduced the amount of metal obscuring its surface to an absolute minimum. The balance between structural integrity and visual openness was unlike anything else available at the time.
Since 1886, the Tiffany® Setting has not been redesigned. The proportions, the prong profile and the relationship between shank and stone have remained consistent across more than thirteen decades of production. That consistency is not inertia — it is evidence that the original solution was correct.
For a broader look at the maison and its most significant collections, see our guide to Tiffany & Co.: history and key collections.
Technical Features: What Sets This Mounting Apart
The six-prong mounting defines the Tiffany® Setting, but its strength lies in specific proportions rather than the prong count alone. Each prong is calibrated in width and height to leave the maximum diamond surface visible while maintaining a secure hold. The prong tips are rounded to a precise radius — they do not catch fabric, present no sharp edges, and look clean from every angle.
The shank tapers toward the setting: narrower at the base, slightly wider as it meets the head. This geometry draws the eye upward toward the central diamond. The shank width in the classic version measures approximately 2 mm, with minor variation between metal types.
The preferred metal for this mounting is platinum PT950, which accounts for the vast majority of pieces in circulation. Platinum does not yellow over time, does not alter the colour perception of the diamond, and maintains greater hardness than gold under daily wear — a relevant consideration for a ring designed to be worn continuously. Yellow gold 18kt and rose gold 18kt versions exist and produce a noticeably different aesthetic: warmer, less formal, and suited to different personal preferences.
The Main Models of the Tiffany® Setting
The reference piece is the round brilliant diamond solitaire in platinum PT950. This is the combination Tiffany & Co. has consistently presented as the canonical expression of the collection: white diamond, silver-toned metal, clean line. The large majority of Tiffany® Settings on the pre-owned market belong to this variant.
Yellow gold 18kt versions tend to be older in production date and appeal to buyers looking for a more vintage aesthetic. Rose gold 18kt versions are a more recent addition to the Tiffany lineup and have attracted growing interest among younger buyers, though they remain less available on the secondary market than the platinum version.
Diamond weight ranges from entry-level pieces around 0.20–0.30ct up to significant stones above one carat. Each weight category changes not only the price but the visual proportion of the ring on the hand. A 0.50ct in platinum PT950 has historically been the sweet spot between aesthetic impact and accessibility in the restored jewellery market.
Fancy-cut versions — oval, pear, emerald cut, cushion — also exist, produced by Tiffany either as special orders or in limited runs. These are rarer on the secondary market but attract specific buyers who want the brand’s authentication without the round brilliant format.
The ReLusso Experience with the Tiffany® Setting
Among all the Tiffany & Co. pieces that pass through ReLusso, the Tiffany® Setting arrives in the widest range of conditions. The simplicity of the mounting means there is nowhere for wear to hide: every mark on the shank, every altered prong tip, every polished-out edge is immediately apparent under even casual inspection. This is why the intake selection process for these rings is particularly rigorous.
The most requested configurations in the restored market are, in order: 0.50ct in platinum (the most searched combination for its balance of size and price), 0.30ct in platinum for buyers with a tighter budget who want genuine brand authentication, and stones above 1ct for those prioritising visual impact. Yellow gold versions attract buyers seeking a vintage feel; rose gold demand is growing but still well below platinum.
During authentication, Valerio Saltari checks systematically: the PT950 hallmark (or 750 for gold versions) stamped cleanly inside the shank near the opening; the “Tiffany & Co.” engraving in the specific serif typeface the maison uses, with correct letter spacing; the prong form and condition — genuine pieces have rounded tips of a precise, consistent thickness; and the profile of the junction between shank and head, which on an authentic piece shows no visible solder seam or surface irregularity.
Price differences between variants are significant. A Tiffany® Setting in platinum with a 0.30ct diamond typically sits between €1,800 and €2,800 on the restored market, depending on stone quality. A 0.50ct in the same metal ranges from approximately €3,500 to €6,000. One-carat pieces in platinum start at around €8,000 and can exceed €18,000, with the spread driven almost entirely by colour and clarity grades. Yellow or rose gold versions cost roughly 20–30% less than equivalent platinum pieces.
One detail that only becomes apparent through daily handling: many Tiffany® Settings reach the pre-owned market after aggressive commercial polishing performed by third parties. The result is a loss of definition along the shank edges, which in an original piece carry a slightly crisp profile. Under 10x loupe, this kind of surface alteration is clearly distinguishable from natural wear caused by regular use. Where the Luxurigen™ process allows, these geometric details are restored — removing as little material as possible while bringing the mounting back to its correct profile.
How to Identify an Authentic Tiffany® Setting
Authenticating a Tiffany® Setting does not require specialist equipment, but it requires knowing what to look for. The starting point is always the inside of the shank: platinum versions carry a clearly incised “PT950” or “PT 950” mark; gold versions show “750” alongside the production hallmark.
The “Tiffany & Co.” engraving must be present, readable, and in the correct typeface. If the lettering appears blurred, inconsistently spaced, or smaller than standard, that is worth investigating further. The six prongs must be symmetrical, with all tips sitting at the same height relative to the diamond’s table. Marked asymmetry indicates third-party intervention, usually to repair a damaged prong.
The density of platinum PT950 is physically perceptible: a genuine Tiffany® Setting in this metal has a characteristic weight that differs noticeably from stainless steel or the low-grade alloys used in imitations. Original documentation — GIA certificate, Tiffany blue box, purchase receipt — is not essential for authentication but adds value and transparency to any transaction.
Frequently Asked Questions about the Tiffany® Setting
What is the Tiffany® Setting?
It is the six-prong diamond mounting designed by Tiffany & Co. in 1886, engineered to lift the diamond above the shank and maximise its brilliance. It has been the foundation of Tiffany’s solitaire ring production for over 135 years.
When was the Tiffany® Setting introduced?
The mounting was introduced in 1886 by Charles Lewis Tiffany. Its fundamental proportions have not changed since that date.
Why is the Tiffany® Setting so sought after?
Because it combines precise technical engineering with strong symbolic resonance and very high recognition in the international engagement ring market. The mounting showcases the diamond without added decoration, making it suitable for any stone size and adaptable to different personal styles.
Does buying a pre-owned restored Tiffany® Setting make sense?
Yes — provided the piece is genuine and restored by a qualified professional. A restored Tiffany® Setting can offer the same aesthetic and structural qualities as a new one at a significantly lower price, as long as authentication has been rigorous and the mounting has not been altered in ways that compromise its original geometry.
