Lab-Grown Diamond Prices – March 2025
For the first time, PriceScope is proud to launch our comprehensive Lab-Grown Diamond Price Analysis, at the beginning of each month, we will provide actionable insights into this rapidly evolving…
Considering a 1/2-carat diamond ring? It’s a common choice for many looking to strike a balance between size and cost, but understanding what contributes to its value can ensure you get the best 0.5-carat diamond engagement ring for your budget.
Key Considerations:
- Check Certification: Always ensure the diamond has a certification from a reputable lab like GIA or AGS. This guarantees the quality and authenticity of your purchase.
- Prioritize Cut Quality: A well-cut diamond will exhibit more brilliance and sparkle. We recommend prioritizing cut quality over color and clarity, especially if you’re budget-conscious.
- Color and Clarity: Opt for a diamond in the G-H color range and a clarity of VS2 or SI1. These grades offer a good balance of appearance and cost.
- Budgeting: Expect to pay between $750 and $850 (this would be dependent on which PriceScope vendor you purchase from) for a good-quality 1/2-carat diamond, though prices can vary based on shape and the specific characteristics of the stone.
How Much Does a 1/2 Carat Diamond Ring Cost?
Prices for a quality half-carat natural diamond generally range from $600. Shape and characteristic (4Cs) preferences can influence the price of 0.5-carat diamonds, and the highest-quality versions can fetch up to $5,120. Here’s a quick look at potential costs by shape:
Shape | Top Quality (D/E, FL/IF) | Our Recommendation (G/H, VS/SI) | The Lower End (I/J, SI1/SI2) |
Round | $2,300 | $810 | $600 |
Princess | $2,000 | $720 | $600 |
Cushion | $1,300 | $760 | $500 |
Emerald | $1,100 | $700 | $610 |
Oval | $1,390 | $800 | $690 |
Pear | $1,400 | $620 | $650 |
Marquise | $1,970 | $830 | $580 |
Radiant | $1,200 | $760 | $650 |
Asscher | $1,450 | $820 | $620 |
These prices reflect the cost of the 0.5-carat natural diamond only. The cost of an engagement ring setting can range from as low as $390 to $5,000+ depending on the brand and design.
Shopping for a 1/2-carat natural diamond alternative? Consider a 0.5-carat lab-grown diamond. With shape options ranging from round to radiant, our recommended vendors like Whiteflash, Adiamor, James Allen, and B2C Jewels provide premium-quality, IGI-certified lab-grown diamonds that deliver the brilliance you desire at a fraction of the price.
How Large is a Half Carat Diamond?
A 0.5 carat diamond typically measures about 5.10mm in diameter if it’s round, though dimensions can vary based on the cut and shape. While all half-carat diamonds share the same weight, their appearance can differ significantly due to their cut quality and shape.
Image Source: Whiteflash
Where Can I Buy a 1/2-Carat Diamond?
We recommend purchasing natural and lab-grown diamonds from reputable online vendors like Whiteflash, James Allen, and Blue Nile to name a few, as they offer a vast selection and competitive pricing compared to traditional brick-and-mortar stores.
How Does The PriceScope Diamond Search Work?
The PriceScope Diamond Search works by aggregating diamond listings from trusted online vendors into one searchable platform, allowing users to compare prices, quality, and certifications across over 1.2 million natural and lab-grown diamonds in real-time.
Users can filter diamonds by shape, carat weight, cut, color, clarity, price, and certification. They can also use tools like the Holloway Cut Advisor (HCA) to assess light performance for round diamonds and click any diamond listing to view more details or purchase directly from the vendor’s website.
It’s designed to simplify the buying process and help you find the best quality diamond within your budget.
The Difference Between a 1/2 Carat and a 1 Carat Diamond
A 1/2-carat diamond has a diameter of approximately 5.1mm, whereas a 1-carat diamond measures about 6.5mm. Although a 1-carat diamond is double the weight, it can cost more than double the price of a 1/2-carat, reflecting the premium on larger diamonds.
FAQs About Half Carat Diamonds
- Is a half-carat diamond too small? No, a 1/2-carat diamond can be perfect for an elegant, understated engagement ring. It’s not the size but the quality that counts.
- How much does a 0.50-carat lab-grown diamond cost? A lab-grown diamond of this size could cost as low as $248, providing a substantial saving over natural diamonds.
- What is a 50-point diamond? This is another term referring to a half-carat diamond. “Point” indicates the carat points, with 100 points equivalent to 1-carat.
Bottom Line Recommendation
Choosing the right diamond involves balancing various factors, including your budget and personal taste. Don’t focus solely on the vastness of the carat weight because a smaller, high-quality diamond can often be more appealing than a larger, lesser-quality stone. For further guidance, feel free to contact our experts on the forum free of charge for personalized advice.
