0.3 Carat Heart Lab Grown Diamond Prices Comparison
As of February 2026, 0.3 carat heart lab grown diamonds usually range from $140 to $390, with an average price of $214.In the last month, prices for these diamonds are down 2.3%.Compare 96 verified listings across 2 retailers tracked by CaratRadar.
0.3 Carat Heart Lab Grown Diamond Market Overview
CaratRadar currently tracks 96 verified 0.3-carat heart lab grown diamonds listed across 2 online retailers. Prices in this segment range from $140 to $390, with an average asking price of $214 and a median of $213.
The price spread of $250 (64.2% 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.
96 diamonds tracked in this segment
Price range: $140 to $390
Average price: $214
Median price: $213
Available across 2 retailers
Savings potential: up to 64.2%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
96
$140
$214
$213
$390
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 63.5%0.25ct | Heart | G | VVS1 | Very Good
From $141
Compare at $387
IGISave 53.7%0.26ct | Heart | E | VVS2 | Very Good
From $264
Compare at $570
IGISave 63.6%0.26ct | Heart | E | VS2 | Very Good
From $140
Compare at $384
IGISave 51.6%0.27ct | Heart | D | VVS2 | Very Good
From $179
Compare at $370
IGISave 37.3%0.27ct | Heart | D | VS1 | Good
From $172
Compare at $275
IGISave 58.1%0.28ct | Heart | E | VVS2 | Very Good
From $193
Compare at $460
IGISave 56.5%0.28ct | Heart | D | VVS1 | Good
From $214
Compare at $492
IGISave 61.8%0.28ct | Heart | E | VVS2 | Very Good
From $179
Compare at $468
IGISave 56.5%0.28ct | Heart | D | VVS1 | Very Good
From $214
Compare at $492
IGISave 62.4%0.28ct | Heart | E | VS2 | Very Good
From $150
Compare at $399
IGISave 51.4%0.28ct | Heart | D | VVS2 | Good
From $186
Compare at $382
IGISave 61.8%0.28ct | Heart | D | VS1 | Very Good
From $179
Compare at $468
IGISave 51.4%0.28ct | Heart | D | VVS2 | Good
From $186
Compare at $382
IGISave 61.8%0.28ct | Heart | D | VS1 | Good
From $179
Compare at $468
IGISave 61.1%0.29ct | Heart | E | VS2 | Very Good
From $163
Compare at $420
IGISave 41%0.29ct | Heart | D | VVS1 | Very Good
From $221
Compare at $375
IGISave 51.4%0.29ct | Heart | D | VVS2 | Good
From $192
Compare at $396
IGISave 57.6%0.29ct | Heart | D | VS1 | Good
From $200
Compare at $471
IGISave 58.8%0.29ct | Heart | D | VS1 | Very Good
From $185
Compare at $449
IGISave 29.9%0.3ct | Heart | D | VVS2 | Ideal
From $224
Compare at $320
IGISave 58.9%0.3ct | Heart | D | VS1 | Very Good
From $184
Compare at $447
IGISave 57.7%0.3ct | Heart | D | VVS2 | Very Good
From $199
Compare at $470
IGISave 61.6%0.3ct | Heart | F | VS2 | Very Good
From $181
Compare at $471
IGISave 29.9%0.3ct | Heart | D | VVS2 | Ideal
From $224
Compare at $320
IGISave 29.9%0.3ct | Heart | D | VVS2 | Ideal
From $224
Compare at $320
IGISave 58.9%0.3ct | Heart | D | VS1 | Very Good
From $184
Compare at $447
IGISave 58.9%0.3ct | Heart | D | VS1 | Ideal
From $184
Compare at $447
IGISave 34%0.3ct | Heart | D | VVS2 | Ideal
From $232
Compare at $352
IGISave 57.7%0.3ct | Heart | D | VVS2 | Ideal
From $199
Compare at $470
IGISave 27.6%0.3ct | Heart | D | VVS2 | Good
From $224
Compare at $310
IGISave 57.7%0.3ct | Heart | D | VVS2 | Good
From $199
Compare at $470
IGISave 34.2%0.31ct | Heart | E | VVS2 | Ideal
From $228
Compare at $346
IGISave 28%0.31ct | Heart | E | VS1 | Very Good
From $216
Compare at $300
IGISave 57.2%0.31ct | Heart | D | VVS2 | Very Good
From $205
Compare at $480
IGISave 58.6%0.31ct | Heart | F | VS1 | Very Good
From $187
Compare at $451
IGISave 62.4%0.31ct | Heart | D | VVS2 | Ideal
From $390
Compare at $1,037
IGISave 39.3%0.31ct | Heart | F | VS1 | Good
From $188
Compare at $310
IGISave 58.3%0.31ct | Heart | E | VS1 | Good
From $191
Compare at $459
IGISave 57.8%0.31ct | Heart | E | VVS2 | Very Good
From $198
Compare at $468
IGISave 58.4%0.31ct | Heart | D | VS2 | Ideal
From $190
Compare at $456
IGISave 58.4%0.31ct | Heart | D | VS1 | Very Good
From $190
Compare at $456
IGISave 33.9%0.31ct | Heart | D | VVS2 | Very Good
From $240
Compare at $363
IGISave 59.9%0.31ct | Heart | E | VS1 | Ideal
From $175
Compare at $435
IGISave 33.9%0.31ct | Heart | D | VVS2 | Good
From $240
Compare at $363
IGISave 58.6%0.31ct | Heart | F | VS1 | Very Good
From $187
Compare at $451
IGISave 37.8%0.31ct | Heart | D | VS2 | Good
From $199
Compare at $320
IGISave 33.5%0.31ct | Heart | D | VVS1 | Very Good
From $273
Compare at $411
IGISave 35.8%0.32ct | Heart | E | VS1 | Good
From $205
Compare at $320
IGISave 58%0.32ct | Heart | D | VS1 | Very Good
From $196
Compare at $466
IGISave 57.8%0.32ct | Heart | E | VS1 | Very Good
From $197
Compare at $468
Entry pricing in this category starts around $140.
What to Know When Shopping for 0.3 Carat Heart Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $250 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 $213 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.
- Heart-shaped diamonds require excellent symmetry to look balanced. Aim for carat weights above 0.5 where the shape is clearly visible.
Frequently Asked Questions
We currently track 96 comparable stones in this segment. Prices start around $140 and go up to $390.
Based on the latest market data, the average asking price is about $214 with a median around $213.
The observed spread is roughly $250 across tracked listings, which is about 64.2% 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 $213, 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 2 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 $250 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 Heart diamonds.