4.5 Carat Heart Lab Grown Diamond Prices Comparison
As of February 2026, 4.5 carat heart lab grown diamonds usually range from $984 to $12,104, with an average price of $1,808.In the last month, prices for these diamonds are down 4%.Compare 107 verified listings across 6 retailers tracked by CaratRadar.
4.5 Carat Heart Lab Grown Diamond Market Overview
CaratRadar currently tracks 107 verified 4.5-carat heart lab grown diamonds listed across 6 online retailers. Prices in this segment range from $984 to $12,104, with an average asking price of $1,808 and a median of $1,345.
The price spread of $11,120 (91.9% 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 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.
107 diamonds tracked in this segment
Price range: $984 to $12,104
Average price: $1,808
Median price: $1,345
Available across 6 retailers
Savings potential: up to 91.9%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
107
$984
$1,808
$1,345
$12,104
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 81.9%4.46ct | Heart | E | VVS1 | Ideal
From $3,192
Compare at $17,620
IGISave 87.8%4.46ct | Heart | E | VVS2 | Excellent
From $1,297
Compare at $10,670
IGISave 89.9%4.46ct | Heart | E | VVS2 | Excellent
From $1,090
Compare at $10,750
IGISave 84.7%4.46ct | Heart | E | VS1 | Very Good
From $1,660
Compare at $10,840
IGISave 74.3%4.47ct | Heart | D | IF | Ideal
From $12,104
Compare at $47,130
IGISave 87.7%4.47ct | Heart | F | VVS1 | Excellent
From $1,345
Compare at $10,950
IGISave 90.1%4.47ct | Heart | D | VVS2 | Ideal
From $1,254
Compare at $12,650
IGISave 57.3%4.48ct | Heart | FANCY | VS2 | Good
From $1,780
Compare at $4,171
IGISave 77.7%4.49ct | Heart | D | IF | Very Good
From $8,323
Compare at $37,255
IGISave 81.9%4.49ct | Heart | E | VVS2 | Excellent
From $1,654
Compare at $9,150
IGISave 72.4%4.49ct | Heart | E | VVS2 | Excellent
From $1,311
Compare at $4,755
IGISave 54.7%4.49ct | Heart | F | VVS2 | Excellent
From $1,430
Compare at $3,158
IGISave 85%4.5ct | Heart | E | SI1 | Ideal
From $1,092
Compare at $7,290
IGISave 81.8%4.5ct | Heart | E | VS1 | Excellent
From $1,599
Compare at $8,790
IGISave 88.6%4.5ct | Heart | D | VVS2 | Excellent
From $1,470
Compare at $12,950
IGISave 91.4%4.5ct | Heart | D | VVS2 | Excellent
From $1,116
Compare at $12,930
IGISave 88.5%4.5ct | Heart | E | VVS2 | Ideal
From $1,253
Compare at $10,940
IGISave 63.9%4.5ct | Heart | E | VVS2 | Very Good
From $1,207
Compare at $3,341
IGISave 19.2%4.5ct | Heart | D | VS1 | Very Good
From $1,307
Compare at $1,618
IGISave 87.2%4.5ct | Heart | D | VVS2 | Ideal
From $1,658
Compare at $12,930
IGISave 79%4.5ct | Heart | F | VS1 | Ideal
From $1,171
Compare at $5,570
IGISave 83.7%4.5ct | Heart | F | VVS2 | Ideal
From $984
Compare at $6,030
IGISave 82.1%4.5ct | Heart | E | VVS2 | Excellent
From $1,767
Compare at $9,860
IGISave 19.5%4.5ct | Heart | D | VS1 | Very Good
From $1,334
Compare at $1,658
IGISave 83.7%4.5ct | Heart | F | VS1 | Ideal
From $1,108
Compare at $6,780
IGISave 88.3%4.5ct | Heart | E | VVS2 | Excellent
From $1,289
Compare at $11,000
IGISave 84.1%4.5ct | Heart | E | VS1 | Very Good
From $1,375
Compare at $8,657
IGISave 84.1%4.5ct | Heart | E | VS1 | Very Good
From $1,375
Compare at $8,657
IGISave 71.4%4.5ct | Heart | E | VS1 | Very Good
From $2,587
Compare at $9,060
IGISave 89.8%4.5ct | Heart | D | VS1 | Ideal
From $1,137
Compare at $11,170
IGISave 75.5%4.5ct | Heart | G | VS2 | Excellent
From $1,752
Compare at $7,140
IGISave 73.7%4.5ct | Heart | E | VVS2 | Excellent
From $1,254
Compare at $4,770
IGISave 78%4.5ct | Heart | F | VS1 | Ideal
From $1,295
Compare at $5,900
IGISave 66%4.5ct | Heart | E | VVS2 | Excellent
From $4,380
Compare at $12,866
IGISave 86.5%4.5ct | Heart | E | VS1 | Excellent
From $1,377
Compare at $10,200
IGISave 84.2%4.51ct | Heart | F | VS2 | Very Good
From $1,134
Compare at $7,166
IGISave 75.5%4.51ct | Heart | D | VVS2 | Very Good
From $1,336
Compare at $5,455
IGISave 58.4%4.51ct | Heart | F | VS1 | Very Good
From $1,395
Compare at $3,349
IGISave 82.9%4.51ct | Heart | E | VVS2 | Ideal
From $1,515
Compare at $8,850
IGISave 88.9%4.51ct | Heart | E | VVS2 | Ideal
From $1,218
Compare at $11,010
IGISave 88.5%4.51ct | Heart | E | VVS2 | Ideal
From $1,264
Compare at $11,020
IGISave 81.9%4.51ct | Heart | F | VVS2 | Excellent
From $1,624
Compare at $8,960
IGISave 81.8%4.51ct | Heart | E | VS1 | Excellent
From $1,602
Compare at $8,810
IGISave 88.9%4.51ct | Heart | D | VVS2 | Excellent
From $1,446
Compare at $12,970
IGISave 82.1%4.51ct | Heart | E | VVS2 | Ideal
From $1,771
Compare at $9,880
IGISave 88.2%4.51ct | Heart | D | VS1 | Ideal
From $1,327
Compare at $11,260
IGISave 87.8%4.51ct | Heart | D | VS1 | Ideal
From $1,376
Compare at $11,260
IGISave 88.6%4.51ct | Heart | D | VVS2 | Very Good
From $1,473
Compare at $12,970
IGISave 86.8%4.51ct | Heart | D | VS2 | Excellent
From $1,264
Compare at $9,560
IGISave 82.3%4.51ct | Heart | D | VS1 | Excellent
From $1,952
Compare at $11,050
Entry pricing in this category starts around $984.
What to Know When Shopping for 4.5 Carat Heart Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $11,120 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 $1,345 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 107 comparable stones in this segment. Prices start around $984 and go up to $12,104.
Based on the latest market data, the average asking price is about $1,808 with a median around $1,345.
The observed spread is roughly $11,120 across tracked listings, which is about 91.9% 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 $1,345, 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 6 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 $11,120 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 4.5 carat Heart diamonds.