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Image by Edgar Soto

learn more about
Mandia Diamonds


Mandia Jewellery is proud to use the finest natural or lab diamonds that are conflict-free and ethically sourced. All of our natural diamonds are acquired from local suppliers in Toronto, ON, Canada who follow the Canadian Export and Import of Rough Diamonds Act and adhere to
The Kimberley Process, ensuring every stone is conflict-free. 

Mandia Jewellery has been serving industry professionals for numerous years. As such, we are very well connected with our diamond dealers and coloured gem dealers and have a well-established presence. Therefore, we are confident in finding each of our clients the perfect stone to fit their overall criteria, adhering to our highest quality standards.

Mettler scale equipment

Our in-house tools, including our Mettler scale and microscopes, are top-of-the-line industry equipment. They weigh and closely view the diamond, ensuring it matches the paperwork and certification.

Mandia Jewellery diamonds


Diamond Cuts

Every diamond is cut differently. Each certification will indicate the diamond's cutting. An excellent cut is neither too shallow nor deep and allows the diamond's brilliance to sparkle most intensely. Mandia Jewellery will always opt to find you the best cut diamond to fit your criteria. It's also important to note that GIA's cut grading system primarily applies to round brilliant diamonds due to their standardized proportions. Fancy-shaped diamonds, such as radiant, oval or princess cuts, have unique characteristics, and while GIA provides cut grade information for some of them, it's not as standardized as for round diamonds. When choosing a fancy-shaped diamond, it's crucial to consider its proportions, polish and symmetry.


Diamond Clarity

The clarity of a diamond determines how flawless it is based on how many inclusions are found on the stone. Mandia Jewellery strives to provide diamonds from a VVS to SI2 range, ensuring high-quality and brilliance.


Diamond Colour

The colour of a diamond can make a big difference in how it reflects light. The more colourless a stone is, the more optimal it is. When choosing diamonds, Mandia Jewellery opts for D-H colour for engagement rings.

Mandia Jewellery is also proud to offer coloured diamonds, including pink, yellow, champagne and more. We also use coloured gemstones in many of our custom pieces including sapphires, rubies, emeralds and more.


Diamond Carats

The carat of a diamond refers to the weight of the stone. Generally, the higher the carat, the more expensive a diamond will be. However, even though it may seem like bigger is better, this is not always the case. At Mandia Jewellery, we strive to get you the best quality diamond for any carat you choose depending on your preference, budget and design.



Fluorescence is the ability of a diamond to emit a soft, coloured glow when exposed to ultraviolet (UV) light. Roughly one-third of diamonds exhibit some degree of fluorescence, with the most common fluorescence colors being blue. Although fluorescence can enhance a lower colour diamond, it is often viewed as a potential drawback as strong fluorescence can cause a diamond to appear hazy or milky in direct sunlight. Ultimately, the impact of fluorescence on a diamond's beauty is subjective, and it's recommended that buyers view diamonds both with and without fluorescence to determine their preference. The GIA and other gemological laboratories, like IGI, grade fluorescence on a scale from "None" to "Very Strong," helping consumers make informed decisions when purchasing a diamond.

diamond polish & symmetry

Diamond polish and symmetry are crucial factors in evaluating a diamond's overall quality and beauty. Polish refers to the quality of the diamond's surface finish, assessing how well the facets have been smoothed and polished. A high polish grade ensures that light can pass through the diamond smoothly, maximizing its brilliance. Symmetry, on the other hand, examines the precision of the diamond's cut, assessing how well the facets align and interact with each other. Excellent symmetry ensures that the diamond reflects light evenly, enhancing its overall visual appeal. Both polish and symmetry contribute to a diamond's overall performance, and a well-balanced combination of these factors is essential for a stunning, eye-catching diamond. Gemological reports from reputable labs like the GIA provide detailed assessments of both polish and symmetry to help consumers make informed decisions when selecting a diamond.



GIA certificate
IGI Certiciate

Every main stone will always include a report from GIA or IGI. These diamond grading reports will verify your stone's authenticity with its serial laser inscription number provided, as well as all other details pertaining to your diamond (including the 4 Cs). Both GIA and IGI are reputable companies acknowledged around the world by industry professionals.


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