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Streamline Your Engagement
Luxury Diamonds Made Simple
A smarter way to buy lab-grown diamond engagement rings.
BRILLIANTLY SIMPLE
3 Steps. Zero Stress. All Sparkle.
Stop scrolling. Skip the store runs. Forget the diamond jargon.
With CarbonKarat, it’s as easy as picking your carat, shape, and size—we’ll handle the rest.
No guesswork. Just diamonds that outshine 99% of what’s out there. Turn “yes” into your new favorite word.
Select Carat
Pick a carat size (1–5) that fits your budget—we’ve ensured every option delivers uncompromising quality and brilliance.Select Shape
Choose from the top 3 diamond shapes. Love the classic round cut? So do 75% of buyers—but the best shape is the one that speaks to you.Select Size
Select your ring size with confidence. Use our sizing guide to avoid resizing later—because getting it right the first time matters.THE DIAMOND SWEET SPOT
We Handle the Specs. You Focus on the Moment.
Your style is one of a kind, and so is our approach to diamonds. Backed by 40+ years of family expertise, we handpick ideal, VS+ clarity stones that strike the perfect balance of beauty, value, and brilliance—leaving you free to plan the perfect proposal for a resounding “yes.”
Ready to Seal the Deal?
Select your desired Carat, Shape & Ring Size.What to expect when you're expecting your custom ring!
Some frequently asked questions, answered.The Elegant Solitaire Lab Diamond Engagement Ring
Featuring a classic design that highlights the diamond’s beauty, this solitaire engagement ring captivates with its minimal and timeless style. Handcrafted with a lab diamond center stone, it’s secured by claw prongs and set with a high-polished finish to showcase the diamond’s natural sparkle and elegance.
Details:
- Expected Shipping Timeline: Made-to-Order (4-6 weeks)
- Precious Metal: 14k White Gold
- Stone Count: 1
- Color/Clarity: F+/VS1+
- Stone Shape(s): Round Brilliant, Oval, Radiant
- Band Style: Polished elegance
- Average Width: 1.8mm
This ring can be personalized with a complimentary engraving and is eligible for resizing. Enjoy peace of mind with our 30-day return or exchange policy.
Our turnaround time is usually 4-6 weeks from your purchase date to delivery, so we can ensure your ring is absolutely perfect.
Need it sooner? Contact Us in advance so we can work to accommodate your request. Depending on our capacity, we can sometimes expedite production for special cases, though a rush fee of $250 may apply.
All our diamonds are IGI Certified. Just like natural diamonds, not all lab diamonds are flawless. That’s why we hand-select only the top percentage available on the market.
Quality is key. You can trust that you’re getting the finest lab diamonds because we choose only those rated by IGI, one of the most reputable labs for diamond grading.
Our experts sift through the options so you don’t have to. We exclusively offer colorless or nearly colorless diamonds in the D-G range, and only those with VS+ clarity to ensure exceptional quality and sparkle.
Experience diamonds with a new story, where you don’t need to sacrifice quality or size to create the diamond ring of your dreams. We curate each diamond to ensure that we're only picking the best of the best.
Our lab diamond are always IGI-certified and individually selected by our team of experts.
Yes, of course! We can source and curate any preferred diamond shape (cut) you'd like. Contact us for details.
We chose to highlight the three listed shapes on our website because those are the most popular. While we feature the most sought-after diamond shapes on our website, we are always willing to go the extra mile to find the perfect shape for you.
Don't hesitate to get in touch with us to discuss your ideal diamond cut.
We know you've worked hard to make this moment special, so we want your surprise to be perfect! Our outer packaging is a plain FedEx box, keeping things discreet. Inside, you'll find a beautiful ring box, ready to make the big moment unforgettable. If you have any questions about shipping, just contact our Client Care team, and we’ll be happy to help.
All our jewelry is custom made-to-order, guaranteeing 100% satisfaction with a 30-day return or exchange policy.
Make sure to submit your return request within 7 days of delivery, with the item in unused and new condition.
Returned items must be received in their original packaging, undamaged.
Easy Returns and Exchanges
We’re here to make returns and exchanges as simple as possible. If you need to return or exchange an item, just request it on our website or via email within 7 days of receiving your order. Our Client Care team will then send you an insured return shipping label and packaging instructions.
Make sure your returned items are in their original packaging, unused, unworn, and undamaged. Include everything from the original package, like the gift box and diamond certificate. Jewelry and engagement rings must be returned in perfect condition, with the diamonds still in their settings. We can’t accept returns if the items show signs of wear, use, or any alterations.
For shipping, place the items in an appropriate carton to prevent damage and affix the prepaid, insured return label. Please don’t use the CarbonKarat jewelry box as the shipping box. We recommend keeping track of your shipping number to monitor the return status. Ensure your package is properly secured to prevent any transit damage, as we cannot be responsible for damages incurred.
Return or Exchange Timing
Once we receive and confirm the item(s) are in original condition, refunds will be issued to your original form of payment for eligible items, and store credit will be provided for exchanges. Please allow up to 7 business days for processing after we receive your returned order.
Absolutely! CarbonKarat offers a zero-risk shopping experience. Every item is made-to-order and undergoes strict quality control to ensure it’s perfect. Plus, we have a 30-day refund policy, so you either get exactly what you ordered or your money back.
Yes, definitely! Our team includes experienced gemologists and is built on decades of diamond and jewelry industry expertise.
We’re here to ensure you get the best diamond for your budget, every time.
Your General Diamond Questions, Answered
You're inquisitive, we dig it! Take a peek at our FAQs.With lab diamonds, you don’t have to compromise on your budget. Get the engagement ring of your partner’s dreams without sacrificing quality or size. Our experts hand-select the best diamonds for their stunning beauty and craftsmanship. Embrace the future of diamonds—sustainable, never mined, and perfect for today’s world.
Nope! Lab-grown diamonds are chemically and optically identical to natural ones, even passing diamond tests. Only high-tech gear can spot any difference.
Lab-grown diamonds mimic earth-mined diamonds, ethically crafted in controlled environments with cutting-edge technology.
Lab-grown diamonds may not hold their value compared to natural diamonds, making them less of an investment strategy. However, they offer a more budget-friendly option that is just as beautiful as natural diamonds, indistinguishable by the naked eye if you just want a diamond for a engagement sake.
No, moissanite is a different stone altogether. It’s a much less expensive mineral with a distinct look and lower hardness compared to lab-created diamonds.
We don’t offer moissanite stones—only premium lab diamonds.
Absolutely! Lab diamond rings can be insured just like mined diamonds. You can add them to your home insurance policy or use specialized companies like BriteCo for jewelry and engagement rings.
Lab-grown diamonds provide a cost-effective and ethical alternative to traditional diamonds by being created in a controlled environment without negative mining impacts.
Lab-grown diamonds have the same durability and hardness as natural diamonds, meaning they last just as long. With lab-grown diamonds, you're not just buying a piece of jewelry, you're investing in a sustainable future.