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How to Choose the Perfect Diamond for Your Engagement Ring | Vulcan Jewellery
Choosing a diamond can feel overwhelming, but it doesn’t have to be. Whether you're designing a bespoke engagement ring or browsing pre-made styles, understanding the basics will help you make a confident, informed decision.
Understanding the 4Cs of Diamonds
Every diamond is graded using the 4Cs: cut, colour, clarity, and carat weight. These factors determine a diamond’s appearance, quality, and price.
Cut: The most important C. A well-cut diamond sparkles brilliantly, even if other Cs are lower. Always prioritise cut over carat size.
Colour: Ranges from D (colourless) to Z (light yellow). Near-colourless diamonds (G–I) offer great value and still appear white.
Clarity: Refers to how many natural inclusions or blemishes are present. Most people can’t spot imperfections with the naked eye — VS1 to SI1 clarity is a popular choice.
Carat: This is the weight, not size. A 1.00ct round diamond is roughly 6.5mm. Smaller stones can still look impactful with a great cut and setting.
Lab Grown vs Natural Diamonds
Both are real diamonds lab-grown just come from a different origin. Here’s a quick comparison:
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Lab Grown: Ethically produced, environmentally friendly, and 30–50% more affordable
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Natural: Mined from the earth, valued for rarity and tradition
At Vulcan, we specialise in both and can help you decide what’s right for your budget and values.
Popular Diamond Shapes
There’s more to diamonds than just round cuts. Popular shapes include:
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Round Brilliant – Classic, timeless, maximum sparkle
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Oval – Elegant, elongates the finger
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Emerald – Sleek with art deco vibes
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Cushion – Soft, vintage look
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Princess – Bold and modern
Your chosen shape will affect how the diamond looks, how it sparkles, and how big it appears.
Round
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Oval
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Emerald
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Cushion
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Princess
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What’s the Best Diamond for You?
The best diamond is the one that fits your style, values, and budget. Here are some tips:
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Set a rough budget before choosing a stone
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Prioritise cut for sparkle and beauty
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Consider near-colourless and eye-clean diamonds for value
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Explore lab grown diamonds to get more for your money
Why Choose Vulcan Jewellery?
We believe every diamond tells a story - and we’re here to help you write yours. Our team offers expert, pressure-free advice and bespoke jewellery design guidance to bring your perfect ring to life.
Start your journey today with Vulcan.
Written by Ethan Tate, founder of Vulcan Jewellery.
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