Finding the Perfect Stone
At Grand Diamonds, we believe that an informed client is a confident client. That’s why education is at the heart of everything we do. Whether you’re considering a Natural Diamond, Lab Grown Diamond, Moissanite, or another beautiful gemstone, our team of highly knowledgeable consultants is here to guide you every step of the way.
We’re committed to empowering you with the insights and information you need to make the best decision for your budget, style, and preference—so your experience is as transparent and rewarding as the stone you choose.
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Approved Retailer
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Approved Retailer
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In-House Workshop
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Natural Diamonds
Natural diamonds are formed deep within the Earth’s mantle over millions of years under high pressure and temperature. These diamonds are prized for their rarity, unique characteristics, and enduring value. Each natural diamond possesses its own distinct flaws, known as inclusions, which contribute to its individuality. The Four Cs — cut, colour, clarity, and carat weight — are used to evaluate and grade natural diamonds, determining their quality and price.
Affordability
Hardness:
Mohs Scale
10/10
Dispersion:
Sparkle & Fire
0.044
Refractive Index:
Brilliance
2.42
CLARITY
Clarity refers to the presence of internal inclusions or external blemishes. Diamonds are graded from Flawless (no visible imperfections under 10x magnification) to Included. Most imperfections are microscopic and don’t affect a diamond’s beauty
CARAT
This indicates the diamond’s size and weight. One carat equals 200 milligrams. While larger diamonds are rarer and more valuable, carat weight should always be considered alongside cut, color, and clarity for overall beauty and value
COLOUR
This measures the absence of colour in a diamond. D–F grades are colourless and highly valued for their icy, pure appearance. G–J are near-colourless, offering great value with minimal warmth. As you move further down the scale, diamonds begin to show more noticeable yellow or brown tones.
CUT
Cut refers to how well a diamond’s facets interact with light. A well-cut diamond reflects light beautifully, creating the sparkle and brilliance diamonds are known for. Cut is graded from Excellent to Poor
Lab Grown Diamonds
Affordability
Hardness:
Mohs Scale
10/10
Dispersion:
Sparkle & Fire
0.044
Refractive Index:
Brilliance
2.42
Lab-grown diamonds are produced in a laboratory setting. The process involves replicating the high-pressure and high-temperature conditions that occur in the Earth’s mantle to create diamonds. There are two main methods of growing lab-grown diamonds: High-Pressure High-Temperature (HPHT) and Chemical Vapour Deposition (CVD). The HPHT method uses a seed crystal and a press to create the necessary high pressure and temperature conditions, while the CVD method involves a gas mixture that is heated to create diamond crystals on a substrate. Once the diamond is grown, it undergoes the same sorting, cutting, and polishing process as a natural diamond to create a finished stone. Both are physically, chemically, and optically identical. The key differences between natural and lab-grown diamonds are in their origin and price — lab-grown diamonds offer greater value at a lower cost.
Moissanite
Moissanite is a popular alternative to natural diamonds. Unlike diamonds, moissanites are made from silicon carbide. Originally discovered in meteorites, moissanites are now synthesized in laboratories to create gem-quality stones. While moissanites exhibit similar brilliance and sparkle to diamonds, they possess different optical properties, such as higher dispersion and lower refractive index.
These differences result in a unique, fiery brilliance that sets moissanites apart from diamonds.