From ashes to light: Don Lanfranco Casali’s Memorial Diamond has been completed
The priest, who died on 22 November 2025 at the age of 93, had entrusted the spiritual meaning of his decision to a video. From the carbon extracted from his cremation ashes, a diamond with intense blue hues was created in Switzerland. This is the first known case worldwide of a Catholic priest choosing this form of transformation.
Domat/Ems, Switzerland, September 2026 – A diamond crossed by striking blue hues now preserves part of the memory of Don Lanfranco Casali, a priest from the Marche region of Italy, born on 10 March 1932 in Castelfidardo and who died on 22 November 2025 in Osimo at the age of 93. He was greatly loved and respected for his tireless religious and civic commitment.
The diamond was created in Switzerland by Algordanza AG, which creates Memorial Diamonds as a form of burial through a complex laboratory process designed to reproduce the physical conditions under which diamonds form in nature from the chemical element carbon. In this case, the carbon was extracted from Don Casali’s cremation ashes.
Don Lanfranco had personally considered and prepared this passage. In May 2024, he recorded a video intended to be made public after his death, in which he explained the meaning of his decision and placed it within a broader Christian reflection on light, matter, death and the hope of resurrection.
Taking into account the “Ad resurgendum cum Christo regarding the burial of the deceased and the conservation of the ashes in the case of cremation” of August 2016 and, above all, the “Response to His Eminence Cardinal Matteo Maria Zuppi, Archbishop of Bologna, regarding two questions concerning the preservation of the ashes of deceased persons following cremation”, resulting from an audience with Pope Francis in December 2023, the creation of Memorial Diamonds has never been deliberately positioned in opposition to the precepts of the Church.
For Don Casali in particular, the diamond was not a precious object to be celebrated in itself, nor a form of ostentation. It was a sign. A visible image through which to continue telling what he had sought to bear witness to throughout his priestly life: the human capacity to allow oneself to be permeated by the light of God and to reflect it towards others.
“As a priest, I have always tried to live as a reflection of the light of Christ that is present in the face of the Church,” he said in the interview. “It is my wish that my ashes be transformed into a diamond.”
A wish prepared as a spiritual testament
In his will, the priest had requested cremation, placing this decision within a broader reflection on the fragility of the body, the transformation of matter and the Christian hope of resurrection.
“We are dust, ashes, but they pulse, they pulse with light, love and reflection,” he explained, referring to the meaning of Ash Wednesday. In his vision, human dust was not merely a symbol of the end, but matter touched by the breath of God and destined to reflect His light.
The passage from ashes to diamond thus also takes on a symbolic meaning: not a form of preserving the person, but an image of spiritual transformation.
Don Casali had also expressed the wish that the diamond might be placed in a sacred location identified by the Church, imagining a space that could, in the future, also receive other similar testimonies. It was a possibility entrusted to the judgement of the competent ecclesiastical authorities, but one that reveals how his decision was conceived not as a private or self-referential gesture, but as a possible community testimony.
From the wish expressed in 2024 to the completed diamond
Following Don Lanfranco’s death and in accordance with his instructions, Algordanza extracted the carbon from his cremation ashes and began the process of creating the diamond. The growth of the gemstone was recently completed, resulting in a brilliant-cut diamond characterised by natural blue hues.
Don Lanfranco’s diamond is not merely the fulfilment of a testamentary wish. It gives visible form to a reflection that matured during the final years of his life and that he deliberately entrusted to his video statement so that it could be understood after his death.
His testimony raises a question that goes beyond his individual story: in what forms can matter become memory, and how can a contemporary symbol enter into dialogue with a spiritual tradition thousands of years old?
Don Lanfranco expressed his own answer through the image of transfiguration.
“How beautiful it is to think of transformation into a diamond as a sign of the transfiguration that we must welcome and facilitate,” he said, “where this stardust, which by the will of the Other, of the wholly Other, has become a living creature, conscious of another destiny, allows itself to be transformed by the love of God.”
Algordanza
Algordanza AG is a Swiss company founded in 2004 and specialising in the creation of Memorial Diamonds from carbon extracted from the cremation ashes or hair of deceased persons. The entire process takes place at the company’s headquarters in Domat/Ems, in the Canton of Graubünden. The carbon is extracted, purified, converted into graphite and subjected to conditions of high pressure and high temperature in order to allow the growth of a laboratory-created diamond with the same chemical, physical and optical properties as a natural diamond. The chemical element boron, which is present in the human body in varying concentrations, produces a more or less intense blue hue, making each diamond unique.
Don Lanfranco Casali
He began his priestly ministry in Castelfidardo, in the Marche region, as chaplain of the Onarmo association (Opera nazionale assistenza religiosa e morale degli operai), where he also opened a canteen for workers. He continued his ministry in Switzerland, Moscow and Kazakhstan before returning to his home region. In 2016, he founded the Pasci association to support the reception and integration of immigrants, particularly those coming from war zones.
