1 Carat Heart Lab Grown Diamond Prices Comparison
As of October 2026, 1 carat heart lab grown diamonds in the 1.00–1.24 carat benchmark range usually range from $156 to $3,070, with an average price of $653.In the last month, prices for these diamonds are down 2.1%.Compare 8,508 verified listings across 15 retailers tracked by CaratRadar.
1 Carat Heart Lab Grown Diamond Market Overview
CaratRadar currently tracks 8,508 verified 1-carat heart lab grown diamonds in the 1.00–1.24 carat benchmark range, listed across 15 online retailers. Prices in this segment range from $156 to $3,070, with an average asking price of $653 and a median of $584.
The price spread of $2,914 (94.9% 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 use the same benchmark range throughout the page and 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.
8,508 diamonds tracked in the 1.00–1.24 carat benchmark
Price range: $156 to $3,070
Average price: $653
Median price: $584
Available across 15 retailers
Savings potential: up to 94.9%
Price Range Overview
As of Oct 12, 2026Real market range for this carat, shape, and diamond type.
8,508
$156
$653
$584
$3,070
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers in the same benchmark range and open any listing for full details.
Save 78.4%IGI | 1ct | Heart | E | SI2 | Very Good
From $173
Compare at $800
Save 76.9%IGI | 1ct | Heart | E | VS2 | Ideal
From $186
Compare at $806
Save 76.8%IGI | 1.01ct | Heart | D | VS2 | Excellent
From $188
Compare at $812
Save 76.8%IGI | 1ct | Heart | E | SI1 | Ideal
From $188
Compare at $812
Save 76.8%IGI | 1ct | Heart | E | SI1 | Excellent
From $189
Compare at $814
Save 76.9%IGI | 1.02ct | Heart | F | VS1 | Very Good
From $189
Compare at $819
Save 76.8%IGI | 1ct | Heart | E | VS2 | Ideal
From $189
Compare at $816
Save 79.3%IGI | 1.01ct | Heart | G | VS2 | Very Good
From $190
Compare at $920
Save 76.8%IGI | 1.01ct | Heart | F | VS1 | Good
From $190
Compare at $820
Save 76.8%IGI | 1.01ct | Heart | D | VS2 | Excellent
From $190
Compare at $819
Save 76.9%IGI | 1.02ct | Heart | F | VS1 | Ideal
From $191
Compare at $826
Save 76.8%IGI | 1.03ct | Heart | E | VS2 | Excellent
From $191
Compare at $825
Save 77%IGI | 1.01ct | Heart | E | VS1 | Very Good
From $192
Compare at $835
Save 76.8%IGI | 1.06ct | Heart | D | VS2 | Ideal
From $194
Compare at $835
Save 76.8%IGI | 1.01ct | Heart | G | VS1 | Ideal
From $194
Compare at $835
Save 76.8%IGI | 1.01ct | Heart | E | VS2 | Excellent
From $194
Compare at $835
Save 72.6%IGI | 1ct | Heart | D | VS1 | Excellent
From $194
Compare at $708
Save 76.8%IGI | 1ct | Heart | E | VS1 | Ideal
From $194
Compare at $837
Save 73.1%IGI | 1.01ct | Heart | E | VVS2 | Ideal
From $195
Compare at $724
Save 76.9%IGI | 1.01ct | Heart | E | VS1 | Good
From $195
Compare at $844
Save 76.8%IGI | 1.02ct | Heart | D | VS1 | Ideal
From $195
Compare at $842
Save 77.1%IGI | 1.03ct | Heart | F | VS2 | Excellent
From $195
Compare at $853
Save 76.8%IGI | 1.06ct | Heart | E | VS2 | Excellent
From $196
Compare at $844
Save 76.8%IGI | 1.05ct | Heart | E | VS1 | Very Good
From $196
Compare at $846
Save 76.9%IGI | 1.02ct | Heart | E | VS1 | Excellent
From $197
Compare at $851
Save 76.9%IGI | 1.02ct | Heart | F | VS2 | Excellent
From $197
Compare at $851
Save 76.9%IGI | 1.02ct | Heart | E | VS1 | Excellent
From $197
Compare at $851
Save 78.1%IGI | 1.03ct | Heart | E | VS1 | Excellent
From $197
Compare at $898
Save 76.9%IGI | 1.01ct | Heart | D | VS1 | Very Good
From $197
Compare at $852
Save 76.8%IGI | 1ct | Heart | E | VS1 | Very Good
From $198
Compare at $853
Save 77.1%IGI | 1.04ct | Heart | E | VS1 | Excellent
From $198
Compare at $863
Save 76.8%IGI | 1.08ct | Heart | E | VS2 | Very Good
From $199
Compare at $856
Save 77%IGI | 1.05ct | Heart | E | VVS2 | Very Good
From $199
Compare at $867
Save 76.8%IGI | 1.04ct | Heart | F | VVS2 | Very Good
From $200
Compare at $863
Save 76.8%IGI | 1.04ct | Heart | E | VS1 | Ideal
From $200
Compare at $863
Save 76.8%IGI | 1ct | Heart | G | VS1 | Excellent
From $200
Compare at $861
Save 76.8%IGI | 1ct | Heart | E | VS1 | Very Good
From $201
Compare at $868
Save 76.8%IGI | 1ct | Heart | E | VVS2 | Very Good
From $201
Compare at $868
Save 76.8%IGI | 1.03ct | Heart | D | VS2 | Excellent
From $201
Compare at $865
Save 76.8%IGI | 1.03ct | Heart | E | VVS2 | Excellent
From $201
Compare at $865
Save 76.6%IGI | 1.03ct | Heart | G | VVS2 | Excellent
From $201
Compare at $858
Save 76.3%IGI | 1ct | Heart | F | VVS2 | Good
From $202
Compare at $852
Save 76.3%IGI | 1ct | Heart | F | VVS2 | Ideal
From $202
Compare at $852
Save 76.8%IGI | 1.01ct | Heart | E | VVS2 | Ideal
From $202
Compare at $871
Save 76.8%IGI | 1.01ct | Heart | E | VVS2 | Very Good
From $203
Compare at $875
Save 76.8%IGI | 1.07ct | Heart | E | VS1 | Excellent
From $203
Compare at $875
Save 76.8%IGI | 1.03ct | Heart | D | VS2 | Very Good
From $204
Compare at $881
Save 76.7%IGI | 1.1ct | Heart | E | VS2 | Ideal
From $204
Compare at $877
Save 67.5%IGI | 1ct | Heart | D | VS1 | Ideal
From $205
Compare at $630
Save 76.7%IGI | 1.08ct | Heart | F | VS1 | Excellent
From $205
Compare at $881
Entry pricing in this benchmark range starts around $156.
What to Know When Shopping for 1 Carat Heart Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $2,914 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 $584 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 8,508 comparable stones in the 1.00–1.24 carat benchmark range. Prices start around $156 and go up to $3,070.
Based on the latest market data, the average asking price is about $653 with a median around $584.
The observed spread is roughly $2,914 across tracked listings, which is about 94.9% from highest to lowest offer in the 1.00–1.24 carat benchmark range.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $653. The median price is $584, 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 15 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 $2,914 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.
0.9 Carat Heart Lab Grown Diamond Prices
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Tracking Lab Grown inventory for the 1.00–1.24 carat Heart diamond benchmark.