Straight answers to the questions jewelers, designers and end-clients ask most about lab-grown and natural diamonds — certification, sourcing, and what fits your line.
Yes. Lab-grown diamonds (also called lab diamonds, lab created diamonds or man made diamonds) are chemically, physically and optically identical to mined diamonds. They are pure crystallized carbon graded by the same IGI and HRD standards.
Two methods are used in the industry: HPHT (High Pressure High Temperature) recreates the conditions deep in the earth's mantle, and CVD (Chemical Vapor Deposition) grows the crystal layer by layer from a carbon-rich gas. Both produce real diamond, typically in a few weeks rather than billions of years.
Not with the naked eye, a loupe, or a standard diamond tester — they pass every common gemological test because they are diamond. Only specialized lab equipment that examines microscopic growth patterns and trace elements can distinguish origin.
Yes. The 4Cs (cut, color, clarity and carat) apply identically. We supply IGI and HRD certified stones — the same labs that grade natural diamonds — so retailers and jewelers can present them with full confidence.
No. They score 10 on the Mohs hardness scale, just like mined diamonds, and have the same refractive index and brilliance. They do not cloud, fade or wear differently than natural diamond.
Generally yes — there is no mining, no displaced communities and no conflict-sourcing risk. The carbon footprint depends on the producer's energy mix, but on balance the impact is meaningfully lower than mined diamond.
Medina Diamonds supplies jewelers, designers and retailers worldwide from our Antwerp office. We carry 3,000+ carats in stock — round brilliants, calibrated melee parcels and a full range of fancy shapes, all IGI or HRD certified. Request our current price list from the contact page.
Yes. Medina Diamonds wholesales both — CVD lab-grown diamonds certified by IGI or HRD Antwerp, and natural diamonds certified by GIA. Many of our clients stock both: natural for heritage and bridal lines, lab-grown for fashion, volume and price-led collections.
Round brilliants from melee through 5ct+, plus oval, emerald, pear, cushion, radiant, princess, marquise, asscher and heart — in both lab-grown and natural. In-stock orders ship within 1 business day; custom and out-of-stock orders within 7 business days.
Our team is happy to walk you through specifications, certificates and current wholesale pricing.
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