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Shop premium 3 carat diamonds at GS Diamonds, including loose 3 carat natural and lab-grown diamonds with GIA or IGI certification in a range of cuts. Whether you’re comparing 3 carat diamond prices, searching for the perfect diamond ring, or looking to buy a 3 carat diamond, explore our collection online or visit our boutiques across Australia.Â
Some light loss. Reflects most light but not as brilliantly as higher grade cuts.
Noticeable colour. Not typically recommended for colourless diamond jewellery.
Setting price may increase for larger carat sizes.
Inclusions are visible under 10x magnification and may be visible with an unaided eye. More inclusions than SI1.
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The cost of a natural 3 carat diamond varies depending on cut, colour, clarity and certification. Higher-quality stones command higher prices, especially those with excellent cut and clarity.Â
The 3 carat diamond ring price depends on the diamond quality and setting. Metal choice, design and additional features all influence the final cost.Â
3 carat diamonds are ideal for those seeking a statement piece that exudes luxury and prestige. They enhance significant occasions, making them perfect for engagement rings, anniversary gifts, or milestone celebrations. A 3 carat diamond elevates any jewellery piece and occasion, so shop GS Diamond’s range today to find the perfect gem for you.
Diamonds are sold by weight (carats), but it's important to understand that weight doesn't equally translate into physical size. Two diamonds of the same carat weight can vary greatly in the spread, meaning that one diamond can appear larger than the other, even though they weigh exactly the same. The diameter of a 3 carat diamond is approximately 9.37 mm. The face-up area (how big the stone looks when viewed from the top) would be 68.96 mm². So, while 3 carat diamonds may generally be bigger than a 1 or 2 carat diamond, it is more accurately to say that they are heavier than to say they are bigger. The size truly depends upon the cut and shape of the diamond. If you’re interested in finding out more about diamond size, check out GS Diamond’s top tips on how to save on a diamond ring’s size.Â
The carat weight isn’t the only thing that determines the quality and appearance of your stone. Instead, the cut, colour, and clarity of the diamond determine the real visual effect of your chosen diamond. You may be able to save on costs by choosing a different shape of diamond. Round diamond rings are the most popular option for many people, but they’re also the most expensive per carat, because they require the removal of the most amount of material from the rough. Choosing an oval shape may save you over 30% of the total cost, while an Asscher diamond can help you save 40%. If you’re unsure of how to choose a diamond, contact our friendly team for assistance or visit us in one of our Australian stores — we’ll be happy to help you with anything diamond-related.
A 3 carat diamond offers the perfect balance between presence and wearability, making it one of the most popular choices for engagement rings. Whether you’re considering a 3ct diamond ring or a 3ct loose diamond, this size delivers impressive brilliance without feeling overwhelming for everyday wear. Â
When evaluating the 3 carat diamond ring price, it’s important to understand that value depends on the 4Cs: cut, colour, clarity and carat. These factors directly influence the diamond price, which is why buyers often compare options to determine how much is a 3 carat diamond and what best fits their budget.Â
A 3 carat natural diamond ring is often paired with classic settings such as solitaires, halos or three-stone designs. These styles enhance the diamond’s size and brilliance while maintaining timeless appeal. You can explore suitable designs through our engagement rings collection or create something personal with our custom jewellery design service.Â
All our natural diamond options are GIA certified, ensuring transparency in quality and authenticity. Browse our full range of stones in the loose diamonds collection, featuring popular cuts such as round, oval, emerald, cushion, pear and princess. Â
For those exploring alternatives, a 3ct natural diamond can also be compared with a 3ct lab-grown diamond, offering similar visual impact at a more accessible price point. Discover these options in our lab-grown diamonds collection.Â