0.3 Carat Princess Lab Grown Diamond Prices Comparison
As of February 2026, 0.3 carat princess lab grown diamonds usually range from $148 to $510, with an average price of $302.In the last month, prices for these diamonds are up 1.3%.Compare 344 verified listings across 3 retailers tracked by CaratRadar.
0.3 Carat Princess Lab Grown Diamond Market Overview
CaratRadar currently tracks 344 verified 0.3-carat princess lab grown diamonds listed across 3 online retailers. Prices in this segment range from $148 to $510, with an average asking price of $302 and a median of $296.
The price spread of $362 (71.0% from highest to lowest) highlights why comparing identical certified diamonds across multiple retailers matters. Two identical certified diamonds can differ by hundreds or even thousands of dollars depending on the retailer.
These figures are based on our latest daily market data, matched by certification lab and certificate number across retailers, so you are comparing the exact same diamond.
344 diamonds tracked in this segment
Price range: $148 to $510
Average price: $302
Median price: $296
Available across 3 retailers
Savings potential: up to 71.0%
Price Range Overview
As of Feb 27, 2026Real market range for this carat, shape, and diamond type.
344
$148
$302
$296
$510
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGISave 36.9%0.25ct | Princess | F | VVS2 | Ideal
From $395
Compare at $626
IGISave 52%0.25ct | Princess | E | VS1 | Ideal
From $301
Compare at $626
IGISave 51.1%0.26ct | Princess | E | VS1 | Ideal
From $395
Compare at $807
IGISave 66.7%0.26ct | Princess | D | VS1 | Very Good
From $150
Compare at $450
IGISave 43.2%0.27ct | Princess | E | VVS1 | Ideal
From $450
Compare at $792
IGISave 59.6%0.27ct | Princess | E | VS2 | Ideal
From $252
Compare at $625
IGISave 66.9%0.27ct | Princess | F | VS1 | Very Good
From $148
Compare at $447
IGISave 51.2%0.27ct | Princess | E | VS1 | Ideal
From $405
Compare at $830
IGISave 63.9%0.28ct | Princess | E | VS1 | Very Good
From $180
Compare at $499
IGISave 59.6%0.28ct | Princess | E | VS1 | Ideal
From $275
Compare at $680
IGISave 67%0.28ct | Princess | E | VVS1 | Ideal
From $305
Compare at $923
IGISave 59.6%0.28ct | Princess | E | VS1 | Ideal
From $275
Compare at $680
IGISave 38%0.28ct | Princess | E | VVS2 | Very Good
From $183
Compare at $295
IGISave 61.8%0.28ct | Princess | D | VS2 | Ideal
From $179
Compare at $468
IGISave 43.3%0.28ct | Princess | D | VVS2 | Ideal
From $450
Compare at $793
IGISave 62.9%0.28ct | Princess | E | VVS2 | Ideal
From $295
Compare at $796
IGISave 67.2%0.28ct | Princess | E | VVS2 | Ideal
From $295
Compare at $901
IGISave 62.6%0.28ct | Princess | D | VVS2 | Ideal
From $305
Compare at $815
IGISave 57.3%0.28ct | Princess | E | VS1 | Good
From $203
Compare at $475
IGISave 59.6%0.28ct | Princess | E | VS1 | Ideal
From $275
Compare at $680
IGISave 59.3%0.28ct | Princess | E | VVS2 | Ideal
From $283
Compare at $695
IGISave 67%0.29ct | Princess | E | VVS2 | Ideal
From $306
Compare at $927
IGISave 63.2%0.29ct | Princess | F | VVS2 | Ideal
From $285
Compare at $773
IGISave 63.2%0.29ct | Princess | E | VS1 | Ideal
From $285
Compare at $773
IGISave 63.2%0.29ct | Princess | E | VS1 | Ideal
From $285
Compare at $773
IGISave 62.6%0.29ct | Princess | E | VVS2 | Ideal
From $306
Compare at $818
IGISave 63.2%0.29ct | Princess | E | VS1 | Ideal
From $285
Compare at $773
IGISave 61.4%0.29ct | Princess | E | VS1 | Ideal
From $309
Compare at $800
IGISave 63%0.29ct | Princess | D | VVS2 | Ideal
From $293
Compare at $791
IGISave 63.2%0.29ct | Princess | F | VS1 | Ideal
From $285
Compare at $773
IGISave 33.7%0.29ct | Princess | D | VVS2 | Ideal
From $192
Compare at $290
IGISave 62.4%0.29ct | Princess | D | VS1 | Ideal
From $315
Compare at $838
IGISave 66.8%0.29ct | Princess | D | VVS2 | Ideal
From $315
Compare at $950
IGISave 45.6%0.29ct | Princess | D | VVS1 | Ideal
From $490
Compare at $901
IGISave 62.4%0.29ct | Princess | D | VS2 | Ideal
From $315
Compare at $838
IGISave 51.7%0.29ct | Princess | D | VS1 | Ideal
From $309
Compare at $639
IGISave 51.7%0.29ct | Princess | D | VS1 | Ideal
From $309
Compare at $639
IGISave 63.2%0.29ct | Princess | E | VS1 | Ideal
From $285
Compare at $773
IGISave 63.2%0.29ct | Princess | F | VS2 | Ideal
From $285
Compare at $773
IGISave 62.6%0.29ct | Princess | E | VVS2 | Ideal
From $306
Compare at $818
IGISave 67.5%0.29ct | Princess | E | VS2 | Ideal
From $285
Compare at $876
IGISave 62.6%0.29ct | Princess | E | VVS2 | Ideal
From $306
Compare at $818
IGISave 57.6%0.29ct | Princess | E | VS2 | Very Good
From $200
Compare at $471
IGISave 62.4%0.29ct | Princess | E | VVS1 | Ideal
From $315
Compare at $838
IGISave 62.4%0.29ct | Princess | F | VVS2 | Ideal
From $315
Compare at $838
IGISave 52.2%0.29ct | Princess | D | VS1 | Very Good
From $294
Compare at $616
IGISave 62.4%0.29ct | Princess | G | VVS2 | Ideal
From $315
Compare at $838
IGISave 62.6%0.29ct | Princess | E | VVS2 | Ideal
From $306
Compare at $818
IGISave 59.6%0.29ct | Princess | E | VS1 | Ideal
From $274
Compare at $678
IGISave 63.3%0.29ct | Princess | E | VS1 | Ideal
From $283
Compare at $771
Entry pricing in this category starts around $148.
What to Know When Shopping for 0.3 Carat Princess Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $362 or more.
- Focus on the 4Cs that matter most to you. Color and clarity grades drive price more than cut in many segments, but cut affects sparkle the most.
- The median price of $296 is a useful benchmark. If you see a deal significantly below this, verify the retailer's reputation and return policy.
- Consider eye-clean alternatives. Moving one clarity grade down (e.g., VS2 to SI1) can save 10-15% with no visible difference to the naked eye.
- Lab-grown diamonds offer excellent value. Ensure the stone comes with a GIA or IGI certificate confirming it is laboratory-grown.
- Check shipping, insurance, and return policies. The lowest sticker price is not always the best deal once you factor in total cost of purchase.
- Princess-cut diamonds are prone to chipping at the corners. Look for protective prong settings and avoid stones with visible inclusions near the edges.
Frequently Asked Questions
We currently track 344 comparable stones in this segment. Prices start around $148 and go up to $510.
Based on the latest market data, the average asking price is about $302 with a median around $296.
The observed spread is roughly $362 across tracked listings, which is about 71.0% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on our data, the median price is $296, which represents the midpoint of the market. Anything below this figure from a reputable retailer is a solid deal.
We currently track this stone category across 3 online retailers, giving you a broad view of the competitive landscape.
For most buyers, color differences below G are hard to detect once set in a ring. Clarity grades of VS2 and above are typically eye-clean. Prioritize cut quality for maximum brilliance, then balance color and clarity based on your budget.
Retailer pricing strategies, overhead costs, and margin targets all contribute. The exact certified diamond can differ by $362 across sellers, which is why direct certified-diamond comparison is essential.
We match diamonds across retailers by their certification lab and certificate number. This means the prices you see are for the exact same physical diamond, not just stones with similar specs. It is a true apples-to-apples comparison.
Diamond prices fluctuate based on supply and demand. Our data refreshes regularly so you can track trends over time. Use the price range on this page as a benchmark and compare it to historical averages when available.
Diamond Terminology
- Carat
- A unit of weight for diamonds equal to 200 milligrams. Larger carat weights are exponentially rarer, which is why prices increase non-linearly with size.
- Cut
- Refers to how well a diamond's facets interact with light. Cut quality ranges from Ideal to Poor and is the single biggest factor affecting a diamond's brilliance.
- Color
- Grades a diamond's lack of color on a scale from D (colorless) to Z (light yellow). Grades D-F are considered colorless; G-J are near-colorless and offer good value.
- Clarity
- Measures the presence of internal inclusions or surface blemishes. Grades range from Flawless (FL) to Included (I3). Most inclusions in VS2 and above are invisible to the naked eye.
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Tracking Lab Grown inventory for 0.3 carat Princess diamonds.