We test all recommended products and services independently and exhaustively. If you buy through our links, we might receive compensation. Our recommendations are not influenced by monetary considerations. Learn more.
- What you should know about buying a 1.5-carat lab diamond
- Prices for 1.5-carat lab diamonds
- Prices for 1.5-carat fancy-shaped lab diamonds
- Why choose a 1.5-carat lab-grown diamond?
- Prices for sustainable 1.5-carat lab diamonds
- Three 1.5-carat lab diamond ring examples
- Where to buy 1.5-carat lab-grown diamonds and jewelry
- Compare prices on other lab-grown diamond-carat weights
SALES ALERT! Save at the best places to buy lab-grown diamonds online:
- 10% off ALL lab diamonds and up to 50% off jewelry at Ritani!
- Up to 50% off the Black Friday sale at James Allen!
- Free gift & $200 off first $1000+ purchase at Grown Brilliance!
- Free gift & $100 off at Clean Origin w/code: LABGROWNCARATS! (US only)
- Black Friday promo with free gift with all purchases at Brilliant Earth!
Diamond prices can vary greatly depending on factors such as the quality of the stone and where you purchase it. For instance, a 1.5-carat lab-grown diamond can range in price from as low as $600 to as high as $3000, depending on the lab diamond’s 4Cs (carat weight, cut, color, and clarity). On average, in November 2023, a premium 1.5-carat brilliant-cut round lab-grown diamond, which is one of the most popular carats and cuts, costs around $1150 and can be up to 87% less expensive than a mined diamond.
1.5-carat lab diamond prices range from $600 to $2500, depending on the quality. How Much Is a 1.5-Carat Lab Diamond? In November 2023, an excellent quality 1.5-carat lab-grown diamond costs around $1100-1300, which is up to 87% less than a mined diamond!
To help you understand the cost of a 1.5-carat lab diamond, we have compiled prices from six of the most affordable places to buy lab-grown diamonds, including both round brilliant and fancy-shaped diamonds. As purchasing a diamond is a significant investment, it’s crucial to know where to find the best value for your money. We have created several lab diamond guides to assist our readers in making informed decisions.
We recommend starting with our popular articles below:
- Guide to buying a lab diamond – top tips for saving
- 10 tips to save money on a lab diamond engagement ring
- What you need to know before buying a lab-grown diamond
3 of the cheapest places to buy a 1.5-carat lab-grown diamond
What you should know about buying a 1.5-carat lab diamond
Before diving into the cost of a 1.5-carat lab-grown diamond, it’s essential to understand the diamond’s 4Cs, which are the diamond cut, clarity, color, and carat weight. We have created an easy-to-read guide called “Intro to Lab-Grown Diamonds: The Diamond 4Cs” that we recommend reading first. However, if you’re short on time or just interested in the price of a 1.5-carat lab diamond, you can skip ahead.
In summary, the diamond 4Cs are crucial in determining a diamond’s quality. Diamond cut is especially important as it affects the diamond’s sparkle, also known as brilliance or fire. Always aim for the best possible diamond cut grade, even if it means sacrificing size. Remember, size comes second to brilliance. No one wants a large but dull diamond.
In addition to cut, consider color, clarity, and carat weight when assessing a diamond’s quality. Opt for the best cut first, followed by color and clarity grades, with carat weight being the last consideration.
One money-saving tip is to choose a diamond just below popular (“round”) weights. For example, selecting a 1.43-carat diamond instead of a 1.5-carat diamond can sometimes save you money, and the difference is usually not noticeable to the naked eye.
To provide you with an estimate of the price of a 1.5-carat lab-grown diamond, we have gathered prices from reputable online diamond retailers in 2023. Our reference diamond for comparison is a round brilliant-cut lab-grown diamond with the following 4C grades:
- Carat weight: 1.5 (plus-minus a little)
- Cut grade: Excellent or Ideal (whichever is the best, depending on the laboratory)
- Color grade: I-J
- Clarity grade: VS1-VS2
- Shape: Round Brilliant
- Origin: Lab-grown
Our reference diamond is not necessarily the best for you, but it gives a good indication of how to prioritize between the lab diamond 4Cs. You may want to consider a slightly better color grade, especially if not set in gold, but very often, at least an I color grade will suffice, as long as the diamond is not clearly yellow-tinted.
Prices for 1.5-carat lab diamonds
Here are the prices for a 1.5-carat lab-grown diamond from our recommended diamond retailers, which we believe are the top places to buy lab-grown diamond jewelry and engagement rings. These retailers have an extensive inventory of high-quality diamonds, provide exceptional shopping experiences, and offer excellent customer service. Moreover, they offer the best prices for lab-grown diamonds, making them the perfect place for your diamond purchase.
| Lab diamond jeweler | Price for a 1.5-carat lab diamond |
|---|---|
| Ritani | $588-1465 |
| Grown Brilliance | $850-1105 |
| Clean Origin | $847-1421 |
| With Clarity | $1000-2028 |
| James Allen | $1650-2040 |
| Brilliant Earth | $1510- 2350* |
Prices for 1.5-carat lab diamonds are accurate at the time of writing in 2023.
*Includes 100% sustainable diamonds.
Prices for 1.5-carat fancy-shaped lab diamonds
Lab-grown diamonds offer a wide variety of shapes and sizes beyond the popular brilliant-cut round diamond. These other shapes are commonly referred to as fancy shapes or fancy cuts. In our comprehensive guide to lab-grown diamond shapes, we highlight the unique beauty, advantages, and disadvantages of each shape.
It’s important to note that some fancy-shaped diamonds may be more expensive than round brilliants, such as heart-shaped diamonds, while others may be more affordable, such as emerald-cut diamonds. To help you compare prices, we have gathered the average costs of 1.5-carat fancy-shaped lab-grown diamonds.
However, it’s worth mentioning that fancy-shaped diamonds are graded slightly differently, and cut grading is not as strict as with round brilliants. Therefore, we have adjusted the price ranges below, taking into consideration factors such as cut grade, which may include very good, a grade we would not accept for round brilliant cuts.
- Carat weight: 1.5 (plus-minus a little)
- Cut grade: Very Good, Excellent, or Ideal
- Color grade: I-J
- Clarity grade: VS1-VS2
- Shape: Fancy-shapes
- Origin: Lab-grown
All the below prices are from prices and go higher, but it gives you an indication of the price range, and all of the diamonds referenced have the above-mentioned minimum specifications.
| Lab diamond jeweler | Oval | Emerald | Pear | Princess | Radiant | Cushion | Heart |
|---|---|---|---|---|---|---|---|
| Ritani | $584 | $474 | $545 | $600 | $456 | $507 | $617 |
| Grown Brilliance** | $995 | $690 | $1015 | $685 | $675 | $995 | $2000 |
| Clean Origin* | $884 | $674 | $660 | $851 | $694 | $855 | $1110 |
| With Clarity | $905 | $925 | — | $1083 | $992 | $990 | — |
| Brilliant Earth** | $1560 | $1470 | $1540 | $1630 | $1540 | $1620 | $1850 |
| James Allen** | $1650 | $1670 | $1940 | $2260 | $1660 | $1700 | $2650 |
Prices for 1.5-carat lab diamonds are accurate at the time of writing in 2023.
*Cut grade fancy
**Higher than minimum grades
The prices for 1.5-carat lab diamonds are from our top-rated best places to buy lab diamonds, where you’ll find the best prices, quality, and shopping experience.
Why choose a 1.5-carat lab-grown diamond?
Lab-grown diamonds offer a significant cost advantage, with prices up to 60-80% lower compared to mined diamonds of the same 4C grades. And during lab diamond sales, you may be able to save even more. We constantly monitor and stay updated on promotions and sales offered by diamond retailers, so sign up below to receive alerts on new deals and special offers for lab-grown diamonds, so you can make the most of your diamond purchasing decision.
In addition to their lower prices, lab-grown diamonds also boast environmental and social benefits compared to mined diamonds. To delve deeper into these advantages, we recommend checking out the following articles:
- Why lab-grown diamonds are the sustainable, environmentally, and ethical diamond choice
- 3 reasons why you should buy a lab-grown diamond
Prices for sustainable 1.5-carat lab diamonds
For those interested in ethical and sustainable diamond options, lab-grown diamonds are a great choice. To maximize sustainability, it’s recommended to opt for lab-grown diamonds made with renewable energy set in recycled metal, and packaged in sustainable materials. Keep in mind that 100% sustainable 1.5-carat lab diamonds typically cost 30-40% more than other lab-grown diamonds.
If you’re looking for a reliable place to purchase sustainable and zero-emission lab-grown diamonds, Brilliant Earth is a top contender (read our review of Brilliant Earth). Another option worth considering is Vrai, although after comparing Brilliant Earth vs. Vrai, we find that Brilliant Earth offers a superior selection of sustainable diamonds (see our review of Vrai). Pandora is also making efforts towards sustainability, as highlighted in our Pandora Brilliance review, though they may not be on par with Vrai or Brilliant Earth in terms of environmental commitment (or quality).
Three 1.5-carat lab diamond ring examples
There is a wide array of styles to choose from when seeking a jewelry set featuring a 1.5-carat lab-grown diamond. Take a look at these stunning examples of rings that showcase the beauty of a 1.5-carat lab diamond. From timeless classics to contemporary engagement ring settings, a 1.5-carat lab diamond complements various jewelry pieces, including engagement rings, anniversary rings, and lab diamond earrings.
Chaleur oval 1-5-carat lab diamond ring
Cathedral solitaire 1.5-carat lab-grown diamond engagement ring
Pavé vaulted 1.5-carat lab-grown diamond engagement ring
Where to buy 1.5-carat lab-grown diamonds and jewelry
At LabGrownCarats.com, we review lab-grown diamond sellers and jewelers to help you find the best places to buy lab diamonds and jewelry. We also compare the best lab diamond jewelers in our lab diamond jeweler comparisons.
3 of our favorite places to buy a 1.5-carat lab-grown diamond
Compare prices on other lab-grown diamond-carat weights
We compile and list prices for the most popular lab-grown diamond carat weights. Compare the prices for 1.5-carat lab-grown diamonds with the below carat weights.
- Prices for a ½-carat lab diamond
- Prices for a 3/4-carat lab diamond
- Prices for a 1-carat lab diamond
- Prices for a 2-carat lab diamond
- Prices for a 3-carat lab diamond
- Prices for a 4-carat lab diamond
- Prices for a 5-carat lab diamond
- Prices for a 6-carat lab diamond
- Prices for a lab diamond engagement ring
- Prices for lab diamond earrings
