When people think about diamonds, they usually think about geology, luxury, or romance. I became interested in something slightly different: what diamonds can reveal about norms, symbolism, and the way markets and meanings interact.
My master’s thesis, Analyzing Acceptance Factors and Commitment Levels: A Comparative Study of Natural and Synthetic Diamonds in Engagement Rings, sits exactly at that intersection. It began with a simple but surprisingly rich question: if synthetic diamonds are chemically and physically the same as natural diamonds, why are they still perceived so differently, especially in the context of engagement rings?
At first glance, synthetic diamonds seem like the obvious alternative. They can avoid some of the ethical and environmental problems associated with mined diamonds, and they are often much cheaper. From a purely technical perspective, they do the same job. They shine the same way, they are made of the same material, and they can even be difficult to distinguish without specialized methods. But engagement rings are not only about material properties. They are also about symbolism, tradition, status, and commitment. That is where the real tension begins.
The thesis therefore had two layers. The first was scientific and gemological. I looked at natural and synthetic diamonds in terms of their formation, properties, and identification. That meant engaging with geophysics, gemology, microscopy, and spectroscopy. In other words, I did not want to treat “synthetic” and “natural” as vague labels. I wanted to understand what these stones actually are, how they come into existence, and how they can be told apart.
The second layer was behavioral and economic. The core of the thesis was a vignette experiment on the acceptance of synthetic diamonds in engagement rings. I was interested in whether people would personally accept them, whether they believed society would accept them, whether a synthetic diamond changes how committed a couple appears, and whether deception matters if someone presents a synthetic diamond as natural. I also tested which kinds of information might shift attitudes: price advantages, ethical and environmental advantages, and information about the scientific similarity between synthetic and natural diamonds.
What I found was more nuanced than a simple “synthetic wins” story. The strongest driver of acceptance was not price, and not factual information alone. The most effective way to increase acceptance of synthetic diamonds was to make their ethical and environmental advantages salient. In other words, people became more open to synthetic diamonds when the issue was framed in moral and ecological terms. But at the same time, natural diamonds still retained a strong symbolic advantage. Even when people were open to synthetic alternatives, natural diamonds continued to carry more of the traditional meaning attached to love, seriousness, and commitment.
That tension is what made the project interesting to me. On the one hand, norms can shift. The study suggests that the dominance of natural diamond engagement rings is not untouchable. On the other hand, symbols are sticky. Markets do not only run on utility, price, and information. They also run on stories people inherit, repeat, and emotionally invest in. An engagement ring is not just a product. It is a social signal. And signals are rarely judged only by their objective properties.
Another important result concerned deception. Synthetic diamonds create a peculiar possibility: because they are hard for non experts to identify, they can be presented as natural. My thesis showed that this possibility matters. Acceptance drops when synthetic diamonds are tied to deception. So even if synthetic diamonds may solve some ethical problems, they can create a new trust problem if disclosure is missing. That part interested me because it shows that consumer markets are never only about products. They are also about norms of honesty, fairness, and what people feel they are entitled to know.
Looking back, this thesis was never really only about diamonds. It was about how people attach meaning to objects. It was about why two things can be materially identical and socially worlds apart. And it was about a broader question that still interests me now: how norms change, and what it takes for a socially loaded object to be reinterpreted.
That is probably why I still like the topic. It sounds niche at first, but it opens up much bigger questions. About markets. About status. About morality. About signaling. And about the strange fact that in many parts of life, what something is matters less than what it means.