Diamond Guide
Lab-Grown vs Natural – What You Need to Know
The Diamonds We Work With
At Signature Vintage, we offer both lab-grown and natural diamonds across our bespoke commissions and Signature Edit pieces. Our Signature Edit designs are primarily set with lab-grown diamonds—chosen for their quality, traceability, and lighter environmental impact.
We personally source every stone—cut, shape, and size—working only with trusted partners. While classic cuts are timeless, we’re drawn to the romance of antique shapes like Old Mine and Rose Cuts, which add soul and individuality to modern heirlooms.
We don’t favour one type over the other. Instead, we guide you to the right choice based on your values, aesthetic, and budget—with complete transparency.
Your Questions, Answered
What are lab-grown diamonds?
Real diamonds—chemically, physically, and optically identical to natural. The only difference is origin: one forms in the earth, the other in a lab.
Are your diamonds certified?
Yes. All diamonds over 0.5ct—lab and natural—are certified by respected gemological labs (like GIA). Each includes a laser inscription for traceability and peace of mind.
What if I prefer a natural diamond?
We offer two ethical options:
– Certified conflict-free diamonds
– Repurposed vintage or antique stones
While older stones may not be traceable, choosing to reuse them avoids new mining and honours the charm of their past lives.
Certification & Ethics
Diamond Cuts & Shapes
Why choose lab-grown?
They’re typically 30–50% more accessible—letting you explore larger stones or bolder styles sustainably.
We source all classic and fancy cuts—from brilliant, emerald, and pear to cushion and marquise. But we’re especially drawn to antique shapes like Old Mine and Rose Cuts—each with its own light-play, personality, and historic charm.
These cuts bring depth, soul, and softness to modern heirlooms—perfect for those seeking something a little different, with meaning that lasts.
Can you tell them apart?
Not by sight. Even trained gemologists need equipment. Both deliver the same fire and brilliance.
