The most unique celebrity engagement rings

The most unique celebrity engagement rings

While some grooms will opt for a beautiful, traditional diamond, others may wish to surprise the love of their life with a truly unique engagement ring. And when it comes to celebrity sparklers, only the most show-stopping bauble will do.

TAP TO SEE OUR GALLERY OF UNIQUE RINGSEva Longoria's engagement ring features a massive ruby.

Everything is coming up roses for Eva Longoria, as she stars in new series Telenovela and has a new piece of bling that is seriously stunning, a ruby-and-diamond engagement ring from Jose Antonio Baston, who proposed in Dubai on Dec. 13.

Iggy Azalea's NBA beau, Nick Young, knew that a standard piece of jewelry just wouldn't cut it, getting the Australian rapper a luxe, 10-carat yellow diamond ring surrounded by white diamonds and cushioned by diamonds as well.

UNUSUAL ENGAGEMENT RINGS: CLICK ON THE IMAGE FOR THE GALLERY Nick Young surprised Iggy with a 10-carat yellow diamond dazzler.

Nicki Minaj's fiancé, rapper Meek Mill, also went for a coloured diamond, knowing that his one-of-a-kind bride would need a one-of-a-kind ring to match the extraverted singer’s personality – so he picked out a lavish, vivid yellow heart-shaped diamond set in a double halo of white diamonds.

Nicki Minaj's engagement ring is certainly unusual.

The romantic shape of her diamond follows in the footsteps of Lady Gaga, who was also presented with a heart-shaped jewel by fiancé Taylor Kinney in February.

Diamond expert Lewis Malka explains why heart-shaped rings aren't actually that popular among brides. "Finding the right shaped heart is not as easy as you may think," he told HELLO Online.

"Getting the proportions right from a rough to a polished diamond depends on where the inclusions are – I believe the perfect heart shape is what Lady Gaga has here. You lose a lot of the diamond during the cutting process. For this reason not many are made in the first place."

Taylor Kinney proposed to Lady Gaga with an unusual, heart-shaped ring.

Of course, Lady Gaga (née Stefani Germanotta) and Nicki Minaj are hardly the only celebrity brides to sport a unique diamond sparkler.

Christina Aguilera's fiancé Matt Rutler spent more than a year designing his lady's rock, which featured different stones that represented different aspects of their relationship. Natalie Portman's engagement ring, given to her by Benjamin Millepied, kept in line with the actress's eco-friendly ideals, being made of conflict-free diamonds.

Olivia Wilde's aqua emerald jewel was selected by husband Jason Sudeikis as it reminded him of the colour of her eyes, while Halle Berry's gold ring is said to bear symbols and codes that only Halle can decipher.

The best celebrity engagement rings of 2014: Gallery

"Before the 1940s, diamonds were not the traditional choice and engagement rings were used with precious stones," Holts Gems told HELLO! Online. "Princess Diana and the Duchess of Cambridge brought back the coloured engagement ring trend with their beautiful sapphire and diamond cluster ring, as did Grace Kelly with her lavish ruby and diamond ring."

Grooms considering a coloured ring, should think about the bride's taste including stone type and metal colour, added jewellers Alexis Dove, who specialize in metals and gemstones.

Others things to bear in mind include the budget, style of ring and – said Holts Gems – "a piece that represents them both." The shape of a stone or diamond must also suit the hand of the ring wearer, for example oval-shaped stones elongate the fingers.

The other option – to keep the element of surprise – is for the groom to buy a stone and present that to his fiancée, and then the couple can go back and commission a ring together.

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