Jewelry shopping can be intimidating. That’s why we started Ask Holden, our blog where we answer your FAQs, break down scary industry lingo, and guide you in finding the perfect piece of jewelry.
We love many things here at Holden (we're in the business of love!), and two of our biggest passions are diamonds and astrology. So today, we're combining them and picking out the best diamond shape for your zodiac sign. The perfect diamond for your engagement ring could be written in the stars! If you're into star sign gems, this is your guide to finding the one that aligns with your cosmic energy.
Of course, these are just suggestions - definitely go with the star sign gem or shape that speaks to you. There’s no wrong way to shine when it comes to zodiac signs and diamonds. If you’re looking for the perfect diamond for zodiac sign alignment, choose one that reflects your energy or your partner’s. Feel free to check out your Venus or moon sign for more inspiration (or you could even choose the shape that corresponds to your partner's sign so you can have them with you always!).
Aries - Oval
Natural leaders and problem solvers, Aries folks exude confidence. For you, we’ve picked an oval shaped diamond because it takes a classic (the round diamond) and makes it even more efficient: a slightly smaller carat will look larger when elongated. You’re innovative and unafraid to tweak or challenge the norm! This diamond shape is also quite durable because there are no pointed ends - it can keep up with a busy Aries lifestyle.

Taurus - Cushion
Tauruses prioritize luxury and comfort. We (yes, I’m a Taurus) love the finer things in life! I will openly admit to having EIGHT pillows on my bed, which, I have learned from non-Tauruses, could be considered…excessive? But to that I say: I need as many cushions as possible because my bed is my favorite place to be! The cushion shaped diamond represents our Taurus pride in making our space comfortable for ourselves and those we love. Also, a Taurus loves luxury and this diamond’s facets are designed for maximum fire (aka lots of colors bouncing off your walls when your ring catches that late morning light because you’re still luxuriating in bed!).

Gemini - Asscher
Gemini is the sign of the twins. You hold multitudes - at your best you’re super flexible and open to new experiences, at your...less than best you can be perceived as a bit unreliable. You can be a Jekyll and Hyde situation - you don’t always know which twin you’re going to get! Because Gemini can hold more than one truth, we’ve paired you with a shape that holds the best characteristics of two diamond shapes, creating a new thing completely. An Asscher diamond contains elements of the emerald and the princess diamond - honor and celebrate your duality, Gemini! You contain multitudes.

Cancer - Pear
Cancers are known for being deeply emotional signs. A pear shaped diamond is also known as a teardrop diamond, and one thing that’s lovely about you is that you’re unafraid to show your emotional side. Cry it out if you feel so inclined, Cancer! Cancers are deeply devoted to their partners, and one sweet detail about the pear shaped diamond is that it’s traditionally worn with the point facing the wearer’s heart. Very romantic! One thing to note: a pear shaped diamond is sensitive (just like a Cancer) - the pointed tip can chip if it’s not properly protected by your ring setting. If you’re choosing a diamond for zodiac sign traits like emotional depth and romantic devotion, the pear shape beautifully mirrors Cancer’s soulful energy.

Leo - Princess
I mean, come on!! Leos are represented by the lion (aka the king of the forest), making the princess shape perfect for you. Leos also thrive in the spotlight, and if America’s persevering obsession with the British royal family (despite saying we were over them back in 1776...) is any indication, princesses get a LOT of attention. Leo, we know you can handle it! Princess diamonds are also one of the most environmentally friendly shapes, because the cut incorporates almost 80% of the raw diamond. Since your sign is represented by the king of the forest, choose a shape that protects that forest!

Virgo - Marquise
Virgos are known as the most loyal sign, and the history of this shape is a show of loyalty more than anything else. The story goes that the marquise diamond was named for the smile of Louis XIV’s mistress, the Marquise de Lafayette. Yes, she was technically his mistress, but he loved her so much that they named a whole diamond after her! Now THAT is devotion. Sometimes Virgos can get a liiiittle tense and stressed out, so self care is important. It’s important to give this diamond some care too - the pointed edges can chip if they’re not protected by your diamond setting. Take care of your Virgo self and your Virgo diamond! If you're searching for the right zodiac sign diamond for a Virgo, the marquise is a timeless and symbolic match.

Shop The Marquise Diamond Signet
Libra - Emerald
Libras are known as balancers (this sign is often associated with a set of scales). An emerald shaped diamond is perfectly balanced - its relative minimalism emphasizes the symmetry of its facets. Libras are sometimes thought of as mirrors to other signs because they are deeply empathetic and can shape-shift to make others comfortable. An emerald diamond’s long, rectangular face often is compared to a mirror and shows off the diamond’s clarity and purity. Just like a Libra!

Scorpio - Baguette
Scorpio: you’re bold, fearless, and sometimes…a little freaky (said with love and deep envy!). For you, we are going with something totally different from the rest: a baguette diamond. Baguettes are typically not featured as center stones at all and are more popular in eternity bands or as side stones. Since Scorpios like to do their own thing, we want to embolden you (not that you need our encouragement to be your bold self) to consider a less traditional engagement ring (like a Full Column Baguette) our to just break all the rules altogether and use a big ol’ baguette as a center stone! Do you, Scorpio! For a zodiac sign diamond that reflects intensity, edge, and individuality, the baguette is an unexpected and powerful choice.

Sagittarius - Radiant
Sagittarius is one of the most fun signs in the zodiac: you bring the party and radiate a good time wherever you go. With 70 facets, the radiant diamond is considered by some to be the shiniest shape of them all. This diamond combines the brilliance of a round diamond with the shape of an emerald diamond - giving you the best of both worlds (Miley Cyrus is a Sagittarius, y’all!). One benefit of the radiant diamond is that it doesn’t have the sharp corners of a princess cut diamond, meaning you don’t have to worry about hurting your diamond while going on all of your spontaneous Sagittarius adventures. If you’re searching for the ideal diamond for zodiac sign energy like Sagittarius, the radiant cut is a sparkling match for your bold and adventurous spirit.

Capricorn - Round
Hey, Capricorn: round is the most classic diamond shape, and you love classic - why reinvent the wheel when the wheel is set up for maximum efficiency and sparkle? There’s a reason that round diamonds make up 75% of the world’s diamonds - they’re optimized for the best of the best when it comes to brilliance (sparkliness) and fire (all those cool colors you see when your ring catches the light). This is also the most expensive diamond shape because so much of the raw stone has to be cut away. You know Capricorns work hard for that money - reap the benefits!

Aquarius - Trillion
Aquarians are totally unique - you’re the ultimate nonconformists. Like air, you can’t really be contained or expected to follow the norm. For you, we’ve picked a totally unexpected shape for a diamond - a trillion! You know an Aquarius is the type of person who would be asked to draw a diamond in third grade and would choose to draw a triangle because that’s what they FELT like drawing, and that…is very cool and powerful. You have a trillion unique ideas (get it?) and need a shape that symbolizes your deep desire to do your own thing. When it comes to finding the perfect zodiac sign diamond, the trillion cut captures Aquarius individuality like no other.
Pisces - Heart
Pisces are known as super emotionally sensitive signs. Your number one priority is to make sure that those around you are happy. You already wear your heart on your sleeve, so consider putting one on your finger with a heart shaped diamond! ALSO Pisces is a water sign, and the human body is made up of 60% water - honor that watery body with a diamond shaped like the organ that keeps it going!
Questions? Give us a shout at help@hiholden.com or a ring (pun intended) at 646.722.6817.
FAQs
1. What’s the best diamond shape for every astrological sign?
We’ve matched each zodiac sign with a diamond shape that aligns with its personality traits—like an oval diamond for Aries or a heart diamond for Pisces. Your perfect diamond for your zodiac sign may be written in the stars, but your personal style always comes first.
2. Can I choose a diamond shape based on my Venus or moon sign instead?
Absolutely! Your Venus or moon sign might reflect your emotional or romantic side more closely. Choosing a diamond for your Venus or moon sign can make your ring feel even more personal and aligned with your inner self.
3. Are these diamond shape suggestions only for engagement rings?
Not at all. While this guide is inspired by engagement rings, you can apply your zodiac signs diamond match to pendants, earrings, or any piece that speaks to your astrological identity. Let your star sign gem shine wherever you wear it. Star sign gems aren’t limited to rings—they’re a meaningful way to express your energy through any kind of jewelry.
4. What if I love a diamond shape that doesn’t match my zodiac sign?
Go for it! These are fun suggestions rooted in astrology, but there’s no wrong way to choose your diamond. Whether you're drawn to a cushion cut as a Libra or a trillion cut as a Capricorn, follow your heart—not just your horoscope.
5. Are some diamond shapes better suited for daily wear?
Yes! Some diamond shapes (like round or oval) are more durable for everyday wear, while others (like pear or marquise) may require protective settings. If you’re an active sign like Aries or Sagittarius, choose a shape that keeps up with your lifestyle.
6. How do I shop for diamonds based on my zodiac sign?
Start by exploring the diamond shape paired with your astrological sign in our guide. You can also shop directly by clicking “Shop [Shape] Diamonds” under each sign or use filters to find the best diamond shape for your star sign gems.
7. Can I get help picking a diamond shape?
Definitely. Whether you want guidance on zodiac signs and diamonds, sizing, or ring settings, our team is here to help. Email us at help@hiholden.com or call us at 646.722.6817—we love helping you find your perfect match.
About Holden
Your rings should feel just as personal as your vows. That’s why Holden crafts engagement rings and wedding rings that reflect your style, your ethics, and your identity. Choose from minimalist Classic bands, expressive Multi-Stone designs, or curved silhouettes made to stack and shine.