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Discover premium 1.5 carat (3/2 ct) diamonds at GS Diamonds, including GIA-certified natural loose stones in a range of cuts, ready to become your perfect ring or custom jewellery piece. Compare prices, explore 1.5 carat diamonds for sale online or in-store, and shop across Australia with confidence, knowing every diamond is carefully selected for exceptional quality and brilliance.Â
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Viewing 52 of 5495 products
Need some help choosing?
A 1.5 carat diamond is one of the most popular choices for engagement rings because it offers impressive presence while remaining elegant for everyday wear. A round 1.5ct diamond typically shows excellent face-up size, while shapes like oval, pear and marquise can appear even larger visually. Whether you prefer emerald, cushion or princess cuts, we offer diamonds in all shapes to suit your style.Â
When considering the cost of 1.5 carat diamond options, pricing depends on the 4Cs: cut, colour, clarity and carat. This means the price can vary significantly depending on quality and certification Â
Clients searching for a GIA 1.5 carat diamond can shop confidently at GS Diamonds, knowing every natural loose diamond comes with a trusted GIA report, with most stones laser inscribed for security and authenticity.Â
A 1.5 carat diamond ring pairs beautifully with classic settings such as solitaire, halo or pavé designs. Halos can enhance visual size, while minimalist settings highlight the stone itself. Browse our collection of engagement rings for inspiration, or design something unique with our diamond specialists.Â
Alongside natural diamonds, we also offer 1.5 carat diamond lab grown options for clients wanting exceptional brilliance at a more accessible price point. Explore our certified range through the complete lab diamonds collection.Â
You can shop loose diamonds online or visit our Sydney, Melbourne, Brisbane and Perth boutiques. We also offer other popular sizes including 1 carat, 2 carat, 3 carat and 5 carat stones, allowing you to compare value and size before deciding.Â