Among fancy coloured diamonds, purple diamonds are exceptionally rare and endlessly fascinating. Their captivating hues range from soft lilac and lavender to deeper plum and royal purple tones. Often associated with royalty, creativity, and individuality, purple diamonds appeal to those seeking a gemstone that feels both luxurious and unconventional.
At Affection Diamonds Australia, purple diamonds are admired for their subtle elegance and the extraordinary natural processes required to create their colour.
What Causes the Colour in Purple Diamonds?
Unlike yellow or blue diamonds, purple diamonds typically owe their colour to structural distortions within the diamond’s crystal lattice rather than chemical impurities alone. In some cases, trace amounts of hydrogen may also influence the purple hue.
These distortions occur during the diamond’s formation deep within the Earth under extreme pressure. Because such conditions are rare, natural purple diamonds are far less common than most other fancy coloured diamonds. Many stones display secondary tones — such as pink, grey, or violet — making diamonds with a strong, pure purple appearance especially valuable.
Purple Diamond Colour Grading
Purple diamonds are graded using the standard fancy colour grading system, which evaluates hue, tone, and intensity. Common grades include:
- Fancy Light Purple
- Fancy Purple
- Fancy Intense Purple
- Fancy Vivid Purple
Stones with rich, even colour and minimal secondary hues command the highest prices. Even slight colour modifiers can significantly affect a diamond’s rarity and desirability.
To enhance colour saturation, purple diamonds are often cut with depth and carefully planned facet arrangements rather than for maximum white-light brilliance.
Durability and Everyday Wear
Like all diamonds, purple diamonds score a perfect 10 on the Mohs hardness scale, making them exceptionally durable. This makes them suitable for daily wear, including engagement rings and heirloom jewellery designed to last for generations.
Purple diamonds pair beautifully with a variety of metals. White gold and platinum enhance their cool, refined tones, while rose gold can bring warmth and a romantic contrast to the stone’s colour.
Purple Diamonds in Fine Jewellery
Purple diamonds are ideal for those who value rarity and personal expression. They are frequently chosen for:
- Distinctive engagement rings
- Bespoke fine jewellery designs
- Collector and heirloom pieces
Due to their scarcity, natural purple diamonds are rarely available in large sizes and often command premium prices in the global market.
Choosing a Purple Diamond
Selecting a purple diamond requires expert guidance. Colour purity, intensity, cut quality, and certification are all critical factors in determining value and beauty. Because of their rarity, proper grading and ethical sourcing are essential.
At Affection Diamonds Australia, we specialise in sourcing ethically selected fancy coloured diamonds, including rare purple diamonds. Our expert jewellers work closely with clients to design bespoke pieces that celebrate the stone’s individuality and elegance.
