Our Premium Certified Laboratory Created diamonds are grown in a laboratory from a lab-grown carbon seed, under extreme heat and pressure to recreate the conditions under the earth's surface. There are two main methods of growing the diamonds, being HPHT (High Pressure High Temperature) and CVD (Chemical Vapor Disposition). Both methods are capable of producing beautiful diamonds of the highest grades and qualities.

Available online or in-stores.

At Secrets Shhh, our Signature Simulant Diamonds and our Premium Certified Laboratory Created Diamonds are graded as minimum Colour F, minimum Clarity VS2, Excellent Cut, Symmetry and Proportions.

Yes laboratory created diamonds are often referred to as lab-grown diamonds, lab-diamonds, cultured diamonds, synthetic diamonds or man-made diamonds.

They have different characteristics and chemical compositions. However, each option has distinct advantages over the other. We offer our Secrets Signature Simulant Diamonds and (from 2023) a curated collection of Premium Certified Laboratory Created Diamonds.

Our Secrets Signature Simulant diamonds are not grown from a carbon seed and therefore differ chemically to our Premium Certified Laboratory Created Diamonds and mined diamonds. A laboratory created diamond is chemically identical to a mined diamond. The main advantages of our Secrets Signature Simulant Diamonds are their superior light dispersion rate and exceptional value for money. Both options come with our Lifetime Gemstone Brilliance Guarantee.

Yes, they are both the same hardness being 10 on the Mohs Scale of Hardness.

Our Premium Certified Laboratory Created Diamonds come with a lifetime guarantee for fire and brilliance.

The difference is the chemical composition of the stones. Secrets Signature Simulant Diamonds are grown in a lab from the mineral base zirconium oxide and are the highest grade latest technology AAAAA cubic zirconia. Moissanite is also a simulant diamond grown in a lab from silicon carbide. Laboratory created diamonds are grown from a lab-grown carbon seed and are chemically identical to a mined diamond. All three stones are created in a lab with minimal environmental impact.

Our Circularity Guarantee allows you to refresh your jewellery wardrobe with new and exciting pieces. In certain circumstances it also allows you the opportunity to trade back your Signature Simulant Diamond for an equivalent piece in a Premium Laboratory Created Diamond. Contact Secrets Shhh Online Assist for further information.

Yes – there is no difference between man made lab grown diamonds and mined diamonds; the same methods are used to test both. Both stones are chemically, physically, and optically identical, so they will exhibit the same properties and characteristics when tested. Among these are hardness, refractive index, thermal conductivity, and other unique characteristics of diamonds, whether they are mined or lab grown diamonds.