0.3 Carat Princess Lab Grown Diamond Prices Comparison
As of May 2026, 0.3 carat princess lab grown diamonds usually range from $57 to $838, with an average price of $358.In the last month, prices for these diamonds are down 3.7%.Compare 496 verified listings across 5 retailers tracked by CaratRadar.
0.3 Carat Princess Lab Grown Diamond Market Overview
CaratRadar currently tracks 496 verified 0.3-carat princess lab grown diamonds listed across 5 online retailers. Prices in this segment range from $57 to $838, with an average asking price of $358 and a median of $305.
The price spread of $781 (93.2% 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.
496 diamonds tracked in this segment
Price range: $57 to $838
Average price: $358
Median price: $305
Available across 5 retailers
Savings potential: up to 93.2%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
496
$57
$358
$305
$838
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
Save 69.3%IGI | 0.3ct | Princess | E | VVS2 | Very Good
From $83
Compare at $270
Save 45.4%IGI | 0.34ct | Princess | D | VVS2 | Very Good
From $90
Compare at $165
Save 45.4%IGI | 0.34ct | Princess | D | VVS2 | Very Good
From $90
Compare at $165
Save 45.1%IGI | 0.35ct | Princess | D | VS1 | Very Good
From $91
Compare at $166
Save 45.1%IGI | 0.35ct | Princess | D | VS1 | Very Good
From $91
Compare at $166
Save 39.7%IGI | 0.31ct | Princess | E | VS1 | Very Good
From $105
Compare at $174
Save 65.2%IGI | 0.35ct | Princess | D | VS2 | Very Good
From $108
Compare at $310
Save 56.1%IGI | 0.36ct | Princess | G | VS1 | Very Good
From $111
Compare at $253
Save 54.5%IGI | 0.4ct | Princess | F | VS1 | Very Good
From $111
Compare at $244
Save 61%IGI | 0.32ct | Princess | D | VS1 | Very Good
From $113
Compare at $290
Save 67.6%IGI | 0.4ct | Princess | D | VVS2 | Very Good
From $118
Compare at $364
Save 56.1%IGI | 0.3ct | Princess | D | VVS2 | Ideal
From $132
Compare at $301
Save 56.1%IGI | 0.33ct | Princess | F | VVS2 | Very Good
From $132
Compare at $301
Save 39.5%IGI | 0.36ct | Princess | F | VS1 | Ideal
From $133
Compare at $220
Save 39.8%IGI | 0.38ct | Princess | D | VS1 | Excellent
From $134
Compare at $222
Save 39.5%IGI | 0.34ct | Princess | D | VVS2 | Very Good
From $135
Compare at $223
Save 56.3%IGI | 0.31ct | Princess | D | VVS2 | Ideal
From $136
Compare at $311
Save 56.1%IGI | 0.37ct | Princess | G | VS1 | Very Good
From $137
Compare at $312
Save 56.5%IGI | 0.32ct | Princess | G | VVS2 | Very Good
From $137
Compare at $315
Save 55.2%IGI | 0.32ct | Princess | D | VVS2 | Very Good
From $137
Compare at $306
Save 59.4%IGI | 0.39ct | Princess | D | VS1 | Good
From $138
Compare at $340
Save 59.4%IGI | 0.39ct | Princess | D | VS1 | Ideal
From $138
Compare at $340
Save 59.4%IGI | 0.39ct | Princess | D | VS1 | Very Good
From $138
Compare at $340
Save 56.2%IGI | 0.32ct | Princess | D | VVS2 | Ideal
From $141
Compare at $322
Save 56.2%IGI | 0.32ct | Princess | D | VVS2 | Very Good
From $141
Compare at $322
Save 56.3%IGI | 0.33ct | Princess | D | VVS2 | Ideal
From $145
Compare at $332
Save 56.3%IGI | 0.33ct | Princess | D | VVS2 | Ideal
From $145
Compare at $332
Save 56.8%IGI | 0.37ct | Princess | D | VVS2 | Very Good
From $147
Compare at $340
Save 56.8%IGI | 0.37ct | Princess | D | VVS2 | Very Good
From $147
Compare at $340
Save 55.3%IGI | 0.32ct | Princess | E | VVS2 | Very Good
From $148
Compare at $331
Save 56.1%IGI | 0.34ct | Princess | D | VVS2 | Ideal
From $150
Compare at $342
Save 56.1%IGI | 0.34ct | Princess | D | VVS2 | Ideal
From $150
Compare at $342
Save 56.1%IGI | 0.34ct | Princess | D | VVS2 | Ideal
From $150
Compare at $342
Save 56.1%IGI | 0.34ct | Princess | D | VVS2 | Ideal
From $150
Compare at $342
Save 50.6%IGI | 0.33ct | Princess | D | VVS2 | Very Good
From $152
Compare at $308
Save 59.7%IGI | 0.4ct | Princess | D | VVS1 | Very Good
From $153
Compare at $380
Save 56.2%IGI | 0.36ct | Princess | G | VVS2 | Very Good
From $155
Compare at $354
Save 55.5%IGI | 0.36ct | Princess | E | VVS2 | Ideal
From $155
Compare at $348
Save 55.3%IGI | 0.34ct | Princess | E | VVS2 | Very Good
From $157
Compare at $351
Save 55.4%IGI | 0.37ct | Princess | D | VVS2 | Very Good
From $158
Compare at $354
Save 38.9%IGI | 0.3ct | Princess | E | VVS2 | Very Good
From $161
Compare at $264
Save 42.8%IGI | 0.31ct | Princess | D | VVS2 | Very Good
From $162
Compare at $283
Save 56.4%IGI | 0.38ct | Princess | E | VVS2 | Very Good
From $163
Compare at $374
Save 38.9%IGI | 0.3ct | Princess | D | VS1 | Very Good
From $163
Compare at $267
Save 55.5%IGI | 0.39ct | Princess | D | VVS2 | Ideal
From $166
Compare at $373
Save 55.5%IGI | 0.39ct | Princess | F | VVS2 | Ideal
From $166
Compare at $373
Save 55.3%IGI | 0.31ct | Princess | E | VVS1 | Excellent
From $167
Compare at $374
Save 37.5%IGI | 0.31ct | Princess | E | VVS2 | Ideal
From $167
Compare at $267
Save 56.5%IGI | 0.39ct | Princess | G | VVS2 | Very Good
From $167
Compare at $384
Save 56.1%IGI | 0.31ct | Princess | F | VS2 | Ideal
From $168
Compare at $383
Entry pricing in this category starts around $57.
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 $781 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 $305 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 496 comparable stones in this segment. Prices start around $57 and go up to $838.
Based on the latest market data, the average asking price is about $358 with a median around $305.
The observed spread is roughly $781 across tracked listings, which is about 93.2% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $358. The median price is $305, so offers between the median and fair benchmark can be reasonable, while reputable listings below the median may be especially competitive.
We currently track this stone category across 5 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 $781 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.
Related Price Categories
Explore adjacent carat ranges and shapes to compare market shifts.
0.2 Carat Princess Lab Grown Diamond Prices
0.4 Carat Princess Lab Grown Diamond Prices
0.5 Carat Princess Lab Grown Diamond Prices
0.6 Carat Princess Lab Grown Diamond Prices
0.7 Carat Princess Lab Grown Diamond Prices
0.8 Carat Princess Lab Grown Diamond Prices
0.9 Carat Princess Lab Grown Diamond Prices
0.3 Carat Round Lab Grown Diamond Prices
0.3 Carat Pear Lab Grown Diamond Prices
0.3 Carat Oval Lab Grown Diamond Prices
0.3 Carat Emerald Lab Grown Diamond Prices
0.3 Carat Marquise Lab Grown Diamond Prices
Tracking Lab Grown inventory for 0.3 carat Princess diamonds.