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The heart of the ocean necklace Rose wore in the Titanic

If you've found yourself captivated by the shimmering allure of the necklace in the 1997 blockbuster Titanic, you're not alone. Known as the ‘Heart of the Ocean’, this he.art-shaped blue diamond necklace not only graced Rose's neck but also played a silent leading role throughout the film, ultimately ending its cinematic life at the bottom of the ocean. However, what many may not realise is that this fictional treasure draws inspiration from a piece of regal jewellery steeped in history. Join us as we explore the mystique of the Heart of the Ocean and its influence on modern jewellery designs.

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What is the story behind the Heart of the Ocean diamond necklace in Titanic?

The Heart of the Ocean is a fictional blue diamond necklace inspired by the 45.52-carat Hope Diamond. It's pivotal in the film, leading to Jack's false accusation of theft. While the movie prop isn't real, it spurred the creation of replicas and inspired similar jewelry pieces. Comparatively, the Hope Diamond, held in the Smithsonian Museum, is one of the world's most valuable diamonds, and the Mouawad L’Incomparable Diamond Necklace is the most expensive necklace globally, valued at $55 million.

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Roses necklace from Titanic, allegedly made from King Louis XVI’s crown jewels, featuring a 56-carat heart shaped blue diamond set in white gold

The story behind Roses necklace from Titanic

In Titanic, the Heart of the Ocean necklace is not merely an accessory; it is a powerful symbol that underscores wealth, romance, and emotional freedom. Imagined as a 56-carat heart-shaped blue diamond set in white gold and enveloped by smaller sparkling diamonds, it mirrors opulence akin to royal jewels. The narrative tells us that it could have been part of King Louis XVI’s fabled crown jewels, weaving a tale as rich and intricate as the gems themselves.
Rose, played by the enchanting Kate Winslet, receives the necklace from her wealthy fiancé, Cal, as a symbol of his control over her. However, it is Jack, the free-spirited artist portrayed by Leonardo DiCaprio, who offers her the freedom and love she truly seeks. A defining moment comes when Rose poses for Jack wearing only the necklace, signifying her break from societal expectations and her journey toward true passion and self-discovery.

Beyond its romantic meaning, the necklace plays a crucial role in the story. It becomes the focal point for modern-day explorers searching for it within the Titanic's wreckage. In the film’s emotional finale, an elderly Rose reveals she has secretly kept the necklace all these years. In an ultimate act of closure, she returns it to the ocean’s depths, bringing the story full circle.

Who made the film prop, Asprey & Garrard and the craftsmanship

The necklace used in Titanic was not a mass-produced movie trinket but a bespoke studio piece made by the British royal jewellers Asprey & Garrard. The firm was commissioned to turn the director’s visual brief into a convincing on-screen jewel, prioritising how it would read under studio lighting rather than gemological authenticity. The finished prop used simulated stones, mainly cubic zirconia, set into a white metal plating to achieve the deep blue heart and the surrounding sparkle seen on screen. Asprey & Garrard’s expertise in proportion and finish helped the piece carry the implied history and value the story demanded.

That provenance matters: a prop by a recognised studio jeweller has a different cultural weight than an anonymous costume item. The materials and budget for the film piece were chosen for practicality and appearance, and are not comparable to the rarity or market value of a genuine 56-carat blue diamond. Still, the maker’s reputation amplified the necklace’s believability and helped secure its place in popular culture.

Is the Heart of the Ocean real?

While the Heart of the Ocean is a creation of cinematic imagination and does not really exist, its conception is in fact rooted in reality. Inspired by the legendary 45.52-carat Hope Diamond, one of the globe’s most illustrious gemstones, the Heart of the Ocean would have been valued at a staggering €300 million if real. For the film, a more accessible version was crafted from zirconia and white gold, valued at €8,000, showcasing the allure of luxury even in its imitation form.

Although central to Titanic’s story, the necklace is fictional and the on-screen piece was not a genuine 56-carat blue diamond. Archival references note the film prop was a crafted replica using simulated stones, which accounts for its on-set practicality and modest production cost. By contrast, real 56-carat heart-shaped diamonds that have appeared at auction show how different the market can be: authenticated, high-quality large stones have realised multimillion-dollar prices, a scale far above any studio prop or consumer replica. For a breakdown of the assumptions behind those high valuations, see the section 'Studio prop cost vs real-world value  -  how estimates are calculated.'


The Hope Diamond itself, renowned for its deep blue hue and storied past, has been estimated at around $350 million, cementing its status as a pinnacle of gemological splendour.

Studio prop cost vs real-world value — how estimates are calculated

Contemporary reports describe the production piece used in Titanic as a studio prop made from simulated stones and plated base metal. Those accounts align with Baunat’s note about a zirconia stone set in white metal and explain the modest workshop expense for a one-off film commission.



Published hypothetical valuations

Some published valuations treat the Heart of the Ocean as if it were a genuine 56-carat blue diamond. These figures model a large, vivid blue heart-shaped stone and compare it to famous blue diamonds to reach very high theoretical prices.



Why estimates diverge

- Carat weight: value does not scale linearly with size; very large stones typically command much higher per-carat prices.

- Colour and clarity: a truly vivid blue with high clarity is far rarer than the blue-tinted stones used for props.

- Provenance and history: museum or royal provenance raises what collectors will pay.

- Natural versus treated or synthetic: treated or lab-grown stones are valued differently from natural, untreated gems.



Replica market snapshot

Replicas and merchandise are priced for fans, not collectors. Official film-shop replicas target tourists and sell at modest retail prices. Online marketplaces show a wide spread: low-end costume pieces are inexpensive, mid-range replicas sit at moderate prices, while higher-end collector editions can cost significantly more. The difference between studio props and authentic large diamonds comes down to materials, rarity and provenance; that is why hypothetical valuations of a real 56-carat vivid blue place it orders of magnitude above any film prop or replica.
Celine Dion wearing the Heart of the Ocean necklace replica at the 1998 Academy Awards for her performance of the famous titanic song “My Heart Will Go On”

The iconic appeal of Celine Dion's Heart of the Ocean moment

The allure of the Heart of the Ocean transcended the silver screen when it found itself gracing the neck of the illustrious international songstress, Celine Dion. During her performance of the emblematic song "My Heart Will Go On" at the 1998 Academy Awards, Dion donned a replica of the necklace, cementing its place in both cinematic and fashion history. This moment became iconic, as the blend of Dion's powerful vocals with the necklace's opulent sparkle mesmerised audiences worldwide.
The decision to wear this dazzling piece was a masterstroke, enhancing the emotional resonance of her performance. It bridged the gap between reality and fiction, conveying the same themes of eternal love and sacred memory that pervade the film. For many, this moment immortalised the Heart of the Ocean not just as a filmic artefact but as a symbol of enduring elegance and timeless glamour.

Where is the Heart of the Ocean now?

Although the Heart of the Ocean did not originate from royal blue diamonds, its legacy persists. The necklace crafted for Titanic continues to captivate audiences and is presently exhibited in a museum in Cornwall, where it remains a testament to the film's enduring legacy and the timeless allure of exquisite jewels.

The allure of iconic jewellery

In conclusion, while the Heart of the Ocean may have been a fictional creation, its impact on popular culture and jewellery design is undeniable. Its blend of history, romance, and artistry continues to inspire both jewellers and admirers, reminding us of the timeless allure and elegance of well-crafted jewellery.

Discover our stunning collection of diamond necklaces and find your own piece of elegance at BAUNAT!

  • Stephanie Hesters

  • BAUNAT Antwerp

  • As the Head of Diamond Buying at BAUNAT, Stephanie has an extensive knowledge of the diamond and the evolution of diamond prices. Thanks to her broad product knowledge gained throughout her years at BAUNAT and the Diamond Foundation Course by De Beers, Stephanie advises our customers interested in the investment side of diamonds to optimize every investment. To support her skills she has a bachelor’s degree in Business Management together with her master’s in Communication.

    About Stephanie Hesters (also known as Stephanie Lasters)

    Stephanie Hesters, sometimes listed online as Stephanie Lasters, is Head of Diamond Buying at BAUNAT. She manages diamond sourcing and valuation, advises clients on market trends and pricing, and helps those looking for investment-grade stones. She completed the Diamond Foundation Course by De Beers and holds a bachelor’s degree in Business Management and a master’s in Communication.

    Selected projects & collaborations

    • Eternal Bloom Collection with Princess Delphine of Saxe-Coburg (2026), curator and project lead  -  guided creative direction and diamond selection for an exclusive collection that blends classical motifs with contemporary craftsmanship.

    • Investment Diamonds Advisory Series (2024), author and presenter  -  developed client-facing guides and presentations on diamond valuation and market dynamics for private buyers and collectors.

    • BAUNAT Editorial Features and Product Launches (2022–2025), contributor  -  worked with design and marketing teams to shape product narratives and ensure technical accuracy in launch materials and editorial content.

As the Head of Diamond Buying at BAUNAT, Stephanie has an extensive knowledge of the diamond and the evolution of diamond prices. Thanks to her broad product knowledge gained throughout her years at BAUNAT and the Diamond Foundation Course by De Beers, Stephanie advises our customers interested in the investment side of diamonds to optimize every investment. To support her skills she has a bachelor’s degree in Business Management together with her master’s in Communication.

About Stephanie Hesters (also known as Stephanie Lasters)

Stephanie Hesters, sometimes listed online as Stephanie Lasters, is Head of Diamond Buying at BAUNAT. She manages diamond sourcing and valuation, advises clients on market trends and pricing, and helps those looking for investment-grade stones. She completed the Diamond Foundation Course by De Beers and holds a bachelor’s degree in Business Management and a master’s in Communication.

Selected projects & collaborations

• Eternal Bloom Collection with Princess Delphine of Saxe-Coburg (2026), curator and project lead  -  guided creative direction and diamond selection for an exclusive collection that blends classical motifs with contemporary craftsmanship.

• Investment Diamonds Advisory Series (2024), author and presenter  -  developed client-facing guides and presentations on diamond valuation and market dynamics for private buyers and collectors.

• BAUNAT Editorial Features and Product Launches (2022–2025), contributor  -  worked with design and marketing teams to shape product narratives and ensure technical accuracy in launch materials and editorial content.