If you’re enchanted by the idea of incorporating an aquamarine gemstone into your engagement ring or designing a custom piece of fine jewellery for an aquamarine-themed wedding anniversary or birthstone, you’ll be pleased to discover the array of blue-green hues available.

This exquisite gemstone, with its captivating blue colour, offers a striking alternative to the traditional diamond engagement ring. At Waldemar Jewellers Sydney, we’re skilled at crafting the perfect custom aquamarine ring to suit your preferences and style.

art deco aquamarine dress ring with blue sapphire highlights
2 ct Aquamarine Drop Earring With Diamond Detail 2
aquamarine diamond band
Dress Band
Round diamond with Emerald Cut Aquamarine pendant 1

Which Grade of Aquamarine should you choose?

When selecting an aquamarine, focus primarily on colour. Look for a vibrant blue hue with minimal green undertones, as this indicates higher quality. Avoid pale or washed-out shades, opting instead for rich, saturated colours that evoke the clarity of ocean waters. A deep, intense blue aquamarine is typically more desirable and valuable.

What is the hardness of Aquamarine?

Aquamarine, a member of the beryl family, boasts a Mohs hardness rating of 7.5 to 8, making it durable for everyday wear. This hardness ensures its resilience against scratches and abrasions, making it suitable for use in various jewellery pieces, from rings to earrings.

aquamarine colour chart

The origin of aquamarine gemstones


Brazilian aquamarines, primarily sourced from states like Minas Gerais, Bahia, and Espírito Santo, boast captivating blue hues, including the coveted Santa Maria colour. Renowned for their exceptional clarity and vibrant colours, these gemstones are highly valued globally. Brazil’s geological conditions, characterised by the presence of mineral-rich pegmatite veins, foster aquamarines of superior quality. With a rich mining history dating back decades, Brazilian aquamarines have earned a reputation for their beauty and rarity in the gemstone market. Their alluring shades, ranging from the deep azure of Santa Maria to the pale sky blue, evoke images of tranquil ocean waters, making them a popular choice for elegant jewellery pieces among discerning collectors and enthusiasts alike.

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Zambian Aquamarines

Zambian aquamarines, originating from mines in the northern regions of Zambia, such as the Lundazi and Mwadui regions, are celebrated for their unique blue hues. Unlike other aquamarine varieties, Zambian aquamarines often display a distinctive teal or greenish-blue colouration, owing to the presence of iron and other trace elements in the surrounding geological formations. These gemstones are typically found in pegmatite deposits within metamorphic rocks, formed through a complex geological process over millions of years.
Zambian aquamarines are prized for their exceptional clarity and colour consistency, making them highly sought after by gemstone collectors and jewellery designers worldwide. With their rich colour palette and remarkable quality, Zambian aquamarines continue to captivate enthusiasts with their natural beauty and allure.

aquamarine raw gemstone
aquamarine genstone

Mozambique Aquamarines

Mozambique aquamarines, sourced predominantly from mines in the northern provinces like Zambezia and Nampula, are renowned for their exceptional quality and stunning blue hues. These gemstones are formed in pegmatite veins within metamorphic rocks, where mineral-rich fluids deposit beryl crystals over extensive periods. Mozambique aquamarines often exhibit a rich, vivid blue colouration with excellent clarity, owing to the geological conditions and trace elements present during their formation.

The country’s mining industry has seen significant growth in recent years, positioning Mozambique as a prominent supplier of high-quality aquamarines in the global market. With their captivating beauty and superior characteristics, Mozambique aquamarines continue to attract attention from gemstone collectors and jewellery enthusiasts seeking exquisite pieces for their collections.

Aquamarine Gemstone engagement rings

At Waldemar Jewellers Sydney, our dedication lies in crafting distinctive engagement rings that break away from tradition. With a team of skilled artisan specialists, we prioritize realizing your individual vision. We meticulously source the finest aquamarine gemstones to ensure the utmost quality for your custom engagement ring.

The 4 C’s of Aquamarines

At Waldemar Jewellers, our proficiency in determining the quality of jewels and gemstones is one of the reasons we have earned the reputation of being Sydney’s best jeweller. When assessing the quality of aquamarine, we follow the four C’s; cut, colour, clarity and carat weight.

Cut: Aquamarines offer versatility in shape, commonly cut into emerald cuts, round, or oval brilliants. With ample rough supply, well-cut stones are readily available. 

Colour: Aquamarine exhibits a limited colour spectrum, ranging from blue to greenish blue tones. The most prized hue is a dark blue to slightly greenish-blue with strong intensity, while lighter, greenish-blue shades are more common. Generally, stones with purer and more intense blue hues are considered more valuable.

Clarity: The vast majority of faceted aquamarines boast remarkable clarity, devoid of visible inclusions. While occasional crystals may contain liquid inclusions, finished gems typically exhibit few or no clarity imperfections.

Carat Weight & Size: Larger aquamarine stones are typically scarcer and carry higher value compared to smaller ones. However, the value of an aquamarine isn’t solely determined by its carat weight; other quality aspects are taken into account for overall appraisal.

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