✨ 2025: The Year the Engagement Ring Became an Icon, Not an Investment
As the new year rapidly approaches, it’s the perfect time to look back at the revolutionary shift we’ve witnessed in fine jewellery design. A time when consumers felt empowered to choose their dream ring based purely on style, quality, and personal meaning, rather than being guided by outdated marketing.
The affordable price point of lab grown diamonds has finally given everyone the freedom to choose based on personal style, not just carat weight, leading to an explosion of unexpected and unique designs. The result is a vibrant, exciting market where feeling trumps the fictitious idea of future value.
The Defining Engagement Ring Styles of 2025
For years, the engagement ring market felt constrained by tradition. This year, we saw a confident, refreshing move toward bolder design choices.
Chunky Engagement Ring Bands and Fancy Cuts
The defining aesthetic of 2025 has been the chunky engagement ring band, also known as a bold or statement shank.
You might be wondering how this trend took hold given the significant rise in gold prices this year. The answer lies entirely in the lab grown diamond. The cost efficiency of choosing a lab grown diamond means the budget saved on the stone can be allocated to a band with real weight, substance, and high-quality design.
These substantial settings beautifully frame distinctive fancy cut diamonds, which dominated searches for unique engagement rings. Shoppers showed a clear preference for cuts that offer personality and a flattering, elongated look such as Marquise, Kite, Pear and 2024’s most loved cut - the oval cut.
Celebrity Influence: The Cool Girl Engagement Ring
Cultural icons have always set the standard, and two rings this year perfectly illustrated the exciting style choices of 2025.
Taylor Swift’s Ring is a beautiful celebration of heritage. It features a stunning vintage old mine cut elongated cushion cut diamond set as a solitaire. The detailing, with its antique-inspired engraving, confirms that vintage engagement ring styles, full of history and character, are incredibly popular.
In contrast, Miley Cyrus’s Ring is the ultimate example of the cool girl engagement ring. Hers is a bold bombe ring showcasing a dazzling, modern radiant elongated cushion cut diamond. The most talked-about feature? The stone is set east–west (horizontally), which maximises its unique look and contemporary wearability.
The Charm of the Warm Tone: Old Cuts and Colour
While brilliant white stones dominate the lab grown market, we’ve also seen a distinctive surge in the popularity of diamonds with a warmer appearance, specifically champagne, cognac, and other warm toned diamonds. This trend is often paired with a renewed appreciation for historic cutting styles.
What is an Old Mine Cut?
The Old Mine Cut diamond is highly sought after for its vintage appeal. Cut by hand over a century ago, these stones lack the perfect precision of modern cuts. They are defined by a squarish or cushion shape with rounded corners, a small flat top, a deep base, and large, chunky facets. This design was made to create a romantic, shimmering flash under soft light, not the sharp brilliance of today’s stones. Because of this unique structure, they naturally display more body colour, which is why they are key to the current colour trends.
The Marketing Pivot to Warm Tones
The simple fact is that due to the immaculate, highly controlled growing conditions of lab grown diamonds, the creation process is intentionally geared toward producing the most pristine, desirable stone possible. This is why the vast majority of gem quality lab diamonds now fall into the highly desirable F colour grade and above, and stones with lower colour grades (J and below) are genuinely uncommon.
The subtle pushback from the natural diamond market and its powerful marketing machine has been a direct pivot towards promoting stones with a distinct colour, now marketed as rare, desirable, and unique champagne or cognac diamonds.
This colour was previously deemed a lower quality or an undesirable trait by the very same industry.
This pattern is not new. It mirrors the tactics used in the 2010s when heavily included, poorly graded natural diamonds were cleverly rebranded and successfully sold as "salt & pepper" diamonds. These heavily included stones are riddled with mineral deposits such as graphite, magnetite, hematite as well as uncrystallised carbon. These inclusions prevent perfect light performance in a diamond and result in a stone that simply doesn't sparkle like it should.
It is another unfortunate example of the natural diamond market continuing to pull the wool over the eyes of the consumer, taking a feature previously considered a flaw and rebranding it as a premium, unique choice to shift inventory. We encourage all buyers to educate themselves on the history of these grading standards and focus on the style they truly love, not the story they are being sold.
Transparency: Why Your Diamond Ring Is Not an Investment
In response to this market shift, the natural diamond industry has aggressively pushed the narrative that natural diamonds are an "investment," often promoting the classic Round Brilliant Cut solitaire engagement ring (typically 0.50ct to 1.0ct).
At The Cornish Diamond Co., we believe in radical transparency. It is simply a commercial narrative, and it is misleading.
The fact is that fine jewellery, be it laboratory grown or natural diamonds, is not a financial investment. You will struggle significantly to achieve even 25% of the retail price you paid for a natural diamond on the resale market.
Our view is simple and honest: when you purchase fine jewellery, you are making an emotional investment. It is about the memory, the moment, and the expression of love. It is not about a financial return. Don't let anyone convince you that you will make money on your purchase; they are simply trying to secure a sale.
Understanding the Rise in the Cost of Gold in 2025
This year has been huge for gold, with prices hitting record-breaking levels and you might be left wondering why. Gold prices have soared for three simple reasons: first, when the world feels risky or unstable, big investors immediately buy gold because it's considered the safest place for money. Second, when the cost of living keeps going up (what we call inflation), people worry their savings will lose value, so they grab gold to protect their cash. Finally, massive financial institutions, like the world's central banks, are constantly buying huge amounts of gold, which keeps demand strong and pushes the price sky-high.
This explains why the accessible price of the lab grown diamond is so crucial. If the cost of gold is this high, those trendy chunky rings suddenly get very expensive. But because the lab grown alternative offers such excellent value, it frees up your budget, making that exceptional, heavy-gold style affordable and truly attainable for everyone.
The Decline of the Natural Diamond Industry
The numbers this year clearly illustrate the dramatic market changes and the growing consumer preference for transparent alternatives.
De Beers recorded a substantial loss of $189 million in the first financial quarter of 2025. The company is facing an unprecedented inventory buildup, with roughly $2 billion in unsold diamonds accumulated, which is the largest stockpile since the 2008 financial crisis. In response to this significant downturn and high inventory, De Beers was forced to reduce production by 23% in the first half of 2025.
There is no denying that the modern consumer is educated, informed, and deeply unlikely to be swayed by a continued marketing ploy built around false scarcity or the 'romance' of an earth-grown stone. 2025 proved that consumers will choose honest value and superior style over the deception of clever marketing every single time.
