Wedding Couple exchanging wedding rings

A Sparkling Journey; The Ultimate Diamond Ring Buying Guide

Undertaking the quest to find the perfect diamond ring is an exciting and significant milestone. Whether you’re planning a proposal, celebrating a special occasion, or simply indulging in a timeless piece of jewellery, the process of selecting a diamond ring can be both thrilling and overwhelming. This comprehensive diamond ring-buying guide from Jeweller SP Green aims to demystify the world of diamonds, providing you with the knowledge and insights necessary to make an informed and confident decision.

Wedding couple at their ceremony holding hands.
Danielle Chambers Photography

Understanding the 4 C’s


The carat weight of a diamond is often the first characteristic that comes to mind, but do you know what it means? It represents the size of the diamond, with one carat equal to 0.2 grams. While a larger carat weight can be visually impressive, it’s crucial to balance size with the other
three Cs to ensure an overall, balanced aesthetic.


The cut of a diamond refers to its proportions, symmetry, and polish, all of which impact how light interacts with the stone. A well-cut diamond maximises its brilliance, sparkle, and shine. Common cut grades include Excellent, Very Good, Good, Fair, and Poor. Aim for a higher cut grade for a dazzling and radiant appearance.


Diamonds come in a range of colours, with the Gemological Institute of America (GIA) grading them from D (colourless) to s (light yellow or brown). Colourless diamonds are highly prised, but slight colour variations may not be noticeable to the naked eye. Select a colour grade that aligns
with your preferences and budget and ask to see examples side by side.


Clarity assesses the presence of imperfections within the diamond. The GIA scale ranges from Flawless (no imperfections visible under 10x magnification) to Included (imperfections visible to the naked eye). A diamond with fewer inclusions is generally more valuable, but imperfections can be hidden by the setting or may not be noticeable to the naked eye. Ask your jeweller for their advice about settings.

Choosing the Right Metal

The metal of the ring setting significantly influences the overall aesthetic. Common choices include platinum, white gold, yellow gold, and rose gold. Each metal has its unique characteristics, such as durability, colour, and price. Consider your style, skin tone, and lifestyle when selecting the metal to ensure a perfect match.

Bride holding hand on chest of groom with wedding rings showing
Danielle Chambers Photography

Setting Styles

The setting style not only secures the diamond but also enhances its visual appeal. Popular setting styles include solitaire, halo, three-stone, and pave. Solitaire settings emphasise the diamond’s simplicity, while halo settings surround the centre stone with smaller diamonds for added brilliance. Choose a setting that complements the diamond and reflects your taste.


Always prioritise diamonds that come with a reputable gemological certification, such as from the GIA, IDL, IGL or AGS. These certifications provide a detailed analysis of the diamond’s 4 Cs, ensuring transparency and authenticity in your purchase.

Budget Considerations

Establishing a budget beforehand is crucial, allowing you to narrow down your options and find the best value for your investment. Keep in mind that the 4 Cs, along with the metal and setting choices, contribute to the overall cost of the diamond ring. Purchasing a diamond ring is a journey that involves both emotional and practical considerations.

Armed with the knowledge of the 4 Cs, metal options, setting styles, certification, and budget considerations, you can confidently choose your perfect diamond ring. Remember, the perfect diamond ring is not just a symbol of love; it’s a reflection of your unique style and the commitment you’re making.

Are you planning your engagement and beginning to think about wedding planning? At Kept Weddings I can help at the very start of your wedding planning journey. Once the question has been popped, we can get together and gather thoughts on what your dream wedding would look like. I can help with consolidating ideas and suggest recommended suppliers that will bring your vision to life. Having a wedding planner will not only save you time, but it will help you make informed choices so get in touch for a chat about how I can help you.

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