Lab Grown & Created Diamonds. Available in Toronto, Canada.


A diamond in the truest sense. Lab created diamonds are exactly the same in chemical makeup as a diamond extracted from the earth. The only difference is that one is cultured in a lab while the other is mined from the earth.

Natural diamond lineage. Our lab grown diamonds are cultured from a piece of natural diamond which they add atoms to in order to continue the growth of the diamond’s exact crystal lattice by using extreme heat similar to the suns rays on earth.

Unique. No two diamonds come out the same. All lab created diamonds will exhibit the same imperfections and colour differences found in mined diamonds. All diamonds are graded with the same 4Cs system.

Origin guaranteed.  There is 100% absolute assurance and traceability of each diamond.  We guarantee each lab created diamond’s origin.

Zero carbon footprint. The mining industry can have devastating impacts on the environment.  We love these diamonds because there is no harm to the environment!

Certified. Each synthetic diamond is certified by a trained gemologist. We provide a full grading certificate.

Sharp pricing. Lab created diamonds are priced much more competitively compared to mined diamonds. Take advantage of the savings.

lab created diamonds

View our lab grown diamonds in person.

Schedule an appointment today!

Lab Created Diamond Facts

  • Also known as synthetic diamonds, cultured diamonds, manufactured diamonds, man made diamonds or lab grown diamonds.
  • Chemically identical in make-up to mined diamonds.  Their chemical composition is carbon.
  • Both types of diamonds have a cubic crystalline structures.
  • Both measure 10 on the Hardness Scale.
  • Light dispersion for lab created and mined diamonds measures 0.044. On the Refractive Index, they both measure 2.42 and have a density of 3.52.

Whether a diamond is created in a lab or mined from the earth, from a scientific perspective, they are identical.

Simulants, such as Cubic Zirconia, Moissanite, White Sapphire or YAG all score much lower for all of the measures mentioned above. Simulants are in a different class completely. They do not have a carbon chemical composition and the crystalline structures are vastly different.  Simulants are easily distinguishable from diamond and are not seen as a fair comparison.

Variety of Lab Created Diamonds in Toronto, Canada

Jacob Mercari lab created diamonds in Toronto, Canada are available in a variety of carat sizes, colours and clarities. We also have available fancy yellow and fancy blue diamonds. Availability is very limited so please make sure to book an appointment before coming in.

We have lab grown diamond stud earrings in stock from 0.50ctw to 2.50ctw.

Lab created diamond is a new and growing area of the diamond and jewellery industry. Many people are still wary as they have been bombarded with marketing from mining companies regarding the value of a natural mined diamond for generations.  We see lab grown diamonds as the next generation and part of the evolution of the diamond industry.  Man made diamonds offer a more affordable, environmentally sustainable and socially responsible option.

Lab Created Diamond Ring

Design the Perfect Ring for your Lab-Grown Diamond.

We don’t just sell lab created diamonds!  We are more then happy to show you a variety of ring designs to compliment your diamond.  Whether you are looking to make something truly unique or combine a few different designs, we can help.  We guide you through the process of jewellery manufacturing in an easy and friendly way. 

We start with a design consultation. After that, we will present you with 3D digital renderings to confirm we are on the right track.  Once you are happy with the structure,  we will proceed to casting in your chosen metal.  Small diamonds will match the centre diamond for an even and uniform look. Contact us to inquire about loose man made diamonds for sale in Toronto, Ontario, Canada.

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