1 carat diamonds
Perfectly balanced for everyday elegance or special occasions, each piece in our 1 to 2 carats lab grown diamond collection offers exceptional brilliance and outstanding value.
Created in 18k White Gold, our diamond rings, earrings and necklaces can also be custom-made in 14K, Yellow Gold and Rose Gold at no additional cost. Contact us for customized orders.
Quick guide to 1 carat diamond rings
Diamond Academy - Learn all about diamonds before you buy
Looking for the perfect 1 carat diamond ring? Learn everything about size, value, and why 1 carat diamonds are perfect choice for engagement rings and diamond earrings.
If you're shopping for a diamond ring or earrings, chances are you’ve come across the 1 carat diamond. It’s a classic choice—elegant, eye-catching, and just the right size for many styles and budgets. But what exactly does 1 carat mean, and why are lab-grown 1 carat diamonds so popular in Singapore and globally?
What Does “1 Carat” Really Mean?
A carat is a unit of weight used to measure diamonds and other gemstones. One carat is equal to 200 milligrams. But here’s the key: carat weight isn’t the same as size. The way a diamond is cut can affect how large or small it appears.
For example, a 1 carat round brilliant cut diamond typically measures about 6.4–6.5mm in diameter. Other shapes, like ovals or pears, can look bigger even at the same carat weight.
Here’s a rough size guide for different cuts:
- Round: ~6.4 mm
- Oval: ~8 x 5.5 mm
- Emerald: ~6.5 x 5 mm
- Cushion: ~5.5 x 5.5 mm
- Princess: ~5.5 x 5.5 mm
- Pear: ~8.5 x 5.5 mm
So if you're asking, "How big is a 1 carat diamond?", it depends on the cut. But generally across all shapes, it's considered a perfect balance between presence and practicality.
Whether you’re buying for an engagement, anniversary, or personal milestone, a 1 carat diamond ring is a meaningful choice.
What is better: a 1 carat or 2 carat diamond?
For those seeking a traditional option, a 1 carat diamond is ideal. However, if you desire a larger and bolder appearance, a 2 carat lab grown diamond, appearing up to 50% larger, may be a perfect choice.
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The experience was incredible from start to finish. Ashley was super friendly, patient, and genuinely helpful throughout the process. She made what could have been a stressful decision feel easy and enjoyable.
The ring itself is absolutely stunning, beautifully crafted, perfectly sized. It felt personal and meaningful.
I can’t recommend them enough not just for the quality of the ring, but for the outstanding service.
Lost my wedding ring 7 years ago and never got around to getting a replacement as my trust issues held me back from imparting my hard-earned money to just any vendor... until Carat Heritage came (I never thought i'd get a lab-grown diamond) and I have absolutely no regrets!
Ashley's customer service was amazing, meticulous, honest, patient, professional and such a joy to work with that i am all smiles now just by thinking back on all that. She not only helped replicated my lost wedding ring but my new ring came out much more stunning that I am absolutely in love with it (albeit sayang to wear because it's just so sooooo beautiful!). Quality's impressive with attention to detail, sparkling shine and luxurious packaging. Worth every single penny and highly recommend Carat Heritage!
In love with how it catches the light and brightens up the whole look. Can’t go wrong with these. Prompt and great service from Ashley. All in, a very pleasant experience
Belle and Ashley brought my vision to life perfectly. I had a specific design in mind, and they were so thoughtful and attentive throughout the process. The final ring is everything I hoped for; elegant, unique, and beautifully crafted. You can really see the care and detail in the piece.
If you’re looking for quality, heart, and timeless elegance, you’re in the best hands with Belle and Ashley. Thank you both for helping me create something so meaningful!
I want to express my deepest gratitude to Belle and Ashley for their incredible support and guidance in helping me choose the perfect gift. From the moment I walked into Carat Heritage, a company renowned for its exquisite craftsmanship and timeless luxury, both of you went above and beyond to ensure that every detail was thoughtfully considered and beautifully executed. Your warm professionalism, impeccable taste, and genuine passion for what you do turned what could have been a daunting decision into a joyful and memorable experience. Your knowledge of Carat Heritage’s stunning collection and your ability to understand exactly what I was looking for made all the difference. Thanks to your expert advice and sincere care, I found a ring that not only reflects the elegance and artistry Carat Heritage is known for, but also carries deep personal meaning. I’m truly grateful for your patience, your attentiveness, and your dedication—this would not have been possible without you. Thank you, Belle and Ashley, for making this such an extraordinary journey.
If you’re looking for timeless elegance, exceptional craftsmanship, and a truly personalized experience, I wholeheartedly recommend Carat Heritage—a luxury jewellery shop where every piece tells a beautiful story. Highly recommended! :)
I had an exceptional experience at Carat Heritage. Belle was incredibly knowledgeable and took the time to understand exactly what I was looking for. Her expert advice and product knowledge made the entire selection process seamless and enjoyable. I truly appreciated her genuine care and attention to detail — it never felt rushed or sales-driven.
The craftsmanship of the piece I purchased was nothing short of outstanding. You can really see the dedication and precision that goes into their work. From start to finish, the service was impeccable and the quality truly speaks for itself.
If you’re looking for fine jewelry with both elegance and substance, paired with sincere, professional service — Carat Heritage is the place to go. Highly recommended!
Had an amazing time at Carat Heritage! The collection was gorgeous—ranging from timeless classics to modern, elegant designs. Belle was super friendly and patient, and really knew her stuff. She made the whole experience feel effortless and fun. Just browsing the pieces felt like walking through a luxury experience. With her help, I found the perfect gift for my girlfriend. Great vibes and awesome service!
Went several local jewellery shops to hunt for an ideal engagement ring and the designs are either not to my liking or the price is above my budget. Eventually, my fiancé and I are happy to found Carat Heritage who managed to customised a piece which we absolutely adore.
Belle and Ashley were very patient with our enquiries, made the effort to show us some of their pieces before we confirm on the order. Would definitely recommend them to my friends who are getting married or anyone who wish to add another fine piece of jewellery to their collection (at a reasonable price!)
Absolutely impressed with Carat Heritage! Their selection is stunning—ranging from classic pieces to modern, elegant designs. Staffs were knowledgeable, patient, and genuinely helpful in finding exactly what I needed. Quality craftsmanship is clearly a priority here and it shows in every piece.
Wasn’t sure what to get, but the team took the time to understand what I was looking for and gave me some fantastic recommendations. Highly recommend if you want expert advice and gorgeous jewelry!
I just got my first ever piece of lab-grown diamond jewelry and I’m totally in love! It’s so pretty and has already become part of my everyday look.
I found out about this brand through a friend’s recommendation, and I’m really glad I did. The quality is amazing! The diamond sparkles beautifully and the whole piece feels super well-made. The sales assistant was also really helpful and knew a lot about the different cuts and designs, which made choosing so much easier.
I’m already thinking about expanding my collection with more pieces from here! I might even consider trying out their customisation service next
I recently purchased the Colette Solitaire 2-carat diamond ring on behalf of my son, and I must say it has been an exceptional experience from start to finish. The name Colette, meaning "victorious" and "refined," truly reflects the timeless elegance of this ring. Crafted in 18k white gold, its classic evergreen design is simply stunning and sophisticated yet understated, making it a perfect symbol of enduring love. It is undeniably excellent value for money.
The ring was presented as a surprise to my future daughter-in-law on the day of her engagement to my son, and it added a memorable touch of joy and emotion to the occasion. The sparkle in her eyes upon receiving it said it all.
I would especially like to thank Ashley for her outstanding and personalised service. She went above and beyond, not only assisting me with the purchase, but also taking the time to personally meet my future daughter-in-law to ensure the ring was the perfect size. Her professionalism, warmth, and attention to detail were truly impressive. The ring was even delivered directly to my home, making the process seamless and stress-free.
As someone who believes strongly in sustainability and protecting our ecosystem, I deeply appreciate that this is a lab-grown diamond. It aligns perfectly with my values, preserving nature and respecting its balance. I’m proud to have chosen a piece that is both ethically sourced and environmentally responsible.
This purchase has been a rewarding experience in every way, and I wholeheartedly recommend both the CARAT Heritage and the team behind it.
Absolutely thrilled with my purchase! I decided to treat myself to these diamond earrings to replace my cheap cubic zirconias, and I couldn't be happier. The diamonds are incredibly sparkly and catch the light beautifully! I also really appreciate how secure the stoppers are so I never have to worry about losing them. These earrings are the perfect blend of elegance and peace of mind. Highly recommend!
This is my 3rd tennis bracelet and I couldn’t resist the attractive price during their Mother’s Day sales. The quality is surprisingly great and very comparable to the other two I bought from luxury stores. Love the purchase and thank you for answering all my questions! 😁
Love the sparkle on this pair! I had other solitaire studs which were harder to wear daily especially when sleeping. These studs have a nicely designed secure backing but they are so comfy.
The Art of Handpicked Perfection
At Carat Heritage, true brilliance isn’t just about meeting standards—it’s about exceeding them. While certificates like IGI or GIA provide valuable technical insights into a diamond’s quality, they can never fully capture the beauty, fire, and soul of each stone.
That’s why every diamond used in your jewelry is more than just certified; it’s handpicked by our experts, who examine each stone with their own eyes.
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Looking for the perfect 1 carat diamond? Learn everything about size, value, and why 1 carat diamonds are perfect choice for engagement rings and diamond earrings.
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When it comes to buying a diamond—whether it's for an engagement ring or a timeless piece of jewelry —understanding the 4Cs is essential. View various diamond cuts, a diamond clarity chart and a diamond color chart in this post. These four characteristics—Cut, Color, Clarity, and Carat Weight—determine the quality and value of a diamond.