Unique Diamond Jewellery

The best carat for a diamond depends entirely on the piece and the person wearing it. For rings, 0.50ct to 1.50ct is often a popular range, visually striking without overpowering the design. A classic solitaire engagement ring, for instance, doesn’t need to be oversized to be impactful. It's about balance, proportion, and the story you're telling through the setting and cut. 

We’re less interested in “rules” and more about what feels right for you. Whether you’re choosing a delicate cluster, a bold salt and pepper diamond, or a one-carat classic, the carat is just one element of the full picture. At Black Finch, we can guide you through diamond selection holistically, considering cut, colour, clarity, and carat, but also what speaks to you personally. Book a complimentary consultation to discuss your dream custom diamond piece.  

While diamonds aren’t typically considered a liquid financial investment, they hold value in more meaningful ways. A well-chosen diamond, particularly one that’s ethically sourced, uniquely cut, or part of a handmade jewellery Melbourne piece, can appreciate over time, especially if it’s rare or unusually coloured like a cognac, champagne, or pink diamond. But more often, their real value lies in their symbolism, longevity, and emotional significance. 

Unlike fleeting trends, a diamond is forever, quite literally, thanks to its unparalleled hardness and durability. A modern unique engagement ring, a bespoke pendant, or a pair of diamond earrings becomes a legacy item: worn often, passed on, and always treasured. So while they might not rival the stock market, diamonds are an enduring investment in craftsmanship, personal meaning, and love. 

To the untrained eye, a well-cut simulant can look very convincing, but there are subtle signs that help distinguish a real diamond. Natural diamonds reflect light differently from imitations, offering a mix of sharp white brilliance and coloured flashes. They’re also cool to the touch, resistant to scratching (thanks to their top score of 10 on the Mohs scale), and typically set in quality metals like solid gold or platinum, if you’re examining a diamond ring in gold, that’s a good starting point. 

Still, nothing beats expert verification. At Black Finch, we work only with ethically sourced, natural diamonds, and each piece comes with absolute transparency about the gem’s origin and specifications. If you ever want to confirm the authenticity of a diamond, whether in an heirloom or a new design, we’re always happy to take a closer look in our Melbourne studio. 

At Black Finch, we are committed to sourcing diamonds with integrity and traceability. We work exclusively with trusted suppliers who adhere to the Kimberley Process, a global initiative established in 2003 to eliminate the trade of conflict diamonds. Beyond the Kimberley Process, we aim to select diamonds from suppliers who can identify not just the country of origin, but the specific province or mine, offering a deeper level of transparency. 

When possible, we like to source diamonds which come with a GIA certification number, often laser-inscribed on the girdle of the stone for authenticity and easy verification. This inscription connects your diamond to its official GIA report; an assurance of quality, craftsmanship, and ethical provenance.