4.5 Carat Oval Lab Grown Diamond Prices Comparison
As of July 2026, 4.5 carat oval lab grown diamonds usually range from $552 to $27,622, with an average price of $3,851.In the last month, prices for these diamonds are down 2.4%.Compare 512 verified listings across 12 retailers tracked by CaratRadar.
4.5 Carat Oval Lab Grown Diamond Market Overview
CaratRadar currently tracks 512 verified 4.5-carat oval lab grown diamonds listed across 12 online retailers. Prices in this segment range from $552 to $27,622, with an average asking price of $3,851 and a median of $2,706.
The price spread of $27,070 (98.0% 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.
512 diamonds tracked in this segment
Price range: $552 to $27,622
Average price: $3,851
Median price: $2,706
Available across 12 retailers
Savings potential: up to 98.0%
Price Range Overview
As of Jul 11, 2026Real market range for this carat, shape, and diamond type.
512
$552
$3,851
$2,706
$27,622
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 59.4%IGI | 4.59ct | Oval | F | SI1 | Ideal
From $668
Compare at $1,646
Save 79.2%IGI | 4.53ct | Oval | D | SI1 | Ideal
From $694
Compare at $3,341
Save 70.1%IGI | 4.5ct | Oval | F | VS1 | Very Good
From $717
Compare at $2,394
Save 70.2%IGI | 4.51ct | Oval | F | VS1 | Excellent
From $717
Compare at $2,404
Save 69.5%IGI | 4.5ct | Oval | F | VS1 | Very Good
From $724
Compare at $2,374
Save 73.9%IGI | 4.5ct | Oval | F | VS2 | Ideal
From $725
Compare at $2,779
Save 69.5%IGI | 4.51ct | Oval | F | VS1 | Very Good
From $726
Compare at $2,383
Save 69.6%IGI | 4.52ct | Oval | F | VS1 | Very Good
From $728
Compare at $2,395
Save 69.6%IGI | 4.52ct | Oval | F | VS1 | Very Good
From $728
Compare at $2,395
Save 69.6%IGI | 4.52ct | Oval | F | VS1 | Very Good
From $728
Compare at $2,395
Save 72.5%IGI | 4.54ct | Oval | G | VVS2 | Very Good
From $731
Compare at $2,659
Save 69.3%IGI | 4.51ct | Oval | E | VS1 | Ideal
From $794
Compare at $2,586
Save 71.6%IGI | 4.51ct | Oval | F | VS1 | Very Good
From $800
Compare at $2,819
Save 70.9%IGI | 4.51ct | Oval | F | VS1 | Ideal
From $811
Compare at $2,784
Save 69.1%IGI | 4.51ct | Oval | F | VS1 | Ideal
From $811
Compare at $2,626
Save 78.2%IGI | 4.54ct | Oval | F | VS1 | Ideal
From $816
Compare at $3,737
Save 65.6%IGI | 4.5ct | Oval | F | VVS2 | Very Good
From $817
Compare at $2,378
Save 70.9%IGI | 4.57ct | Oval | F | VS1 | Ideal
From $821
Compare at $2,821
Save 69.8%IGI | 4.59ct | Oval | G | VVS2 | Excellent
From $824
Compare at $2,732
Save 61.4%IGI | 4.5ct | Oval | G | VS1 | Excellent
From $825
Compare at $2,139
Save 61.6%IGI | 4.52ct | Oval | G | VS1 | Ideal
From $829
Compare at $2,157
Save 28.8%IGI | 4.51ct | Oval | H | VVS2 | Good
From $837
Compare at $1,176
Save 65.8%IGI | 4.57ct | Oval | F | VVS2 | Very Good
From $838
Compare at $2,449
Save 74.1%IGI | 4.52ct | Oval | E | VS1 | Ideal
From $854
Compare at $3,297
Save 28.7%IGI | 4.5ct | Oval | F | VS1 | Very Good
From $855
Compare at $1,199
Save 64%IGI | 4.51ct | Oval | F | VS1 | Excellent
From $857
Compare at $2,383
Save 69.5%IGI | 4.54ct | Oval | F | VS2 | Very Good
From $862
Compare at $2,823
Save 67.7%IGI | 4.5ct | Oval | F | VS1 | Excellent
From $862
Compare at $2,671
Save 78.2%IGI | 4.56ct | Oval | E | VS1 | Ideal
From $862
Compare at $3,951
Save 76.5%IGI | 4.5ct | Oval | G | VVS2 | Excellent
From $863
Compare at $3,665
Save 74.1%IGI | 4.57ct | Oval | E | VS1 | Excellent
From $864
Compare at $3,334
Save 74.1%IGI | 4.59ct | Oval | E | VS1 | Ideal
From $868
Compare at $3,348
Save 67%IGI | 4.52ct | Oval | F | VS1 | Very Good
From $870
Compare at $2,638
Save 70.9%IGI | 4.51ct | Oval | F | VVS2 | Ideal
From $870
Compare at $2,990
Save 70.9%IGI | 4.53ct | Oval | F | VVS2 | Ideal
From $874
Compare at $3,002
Save 78.2%IGI | 4.56ct | Oval | F | VVS2 | Ideal
From $879
Compare at $4,030
Save 70.9%IGI | 4.57ct | Oval | F | VVS2 | Ideal
From $881
Compare at $3,029
Save 70.2%IGI | 4.5ct | Oval | E | VS1 | Very Good
From $881
Compare at $2,958
Save 63.2%IGI | 4.52ct | Oval | F | VS1 | Excellent
From $881
Compare at $2,392
Save 63.3%IGI | 4.53ct | Oval | F | VS1 | Very Good
From $882
Compare at $2,403
Save 62.9%IGI | 4.51ct | Oval | F | VS1 | Very Good
From $886
Compare at $2,389
Save 62.9%IGI | 4.51ct | Oval | F | VS1 | Very Good
From $886
Compare at $2,389
Save 63.1%IGI | 4.54ct | Oval | F | VS1 | Very Good
From $892
Compare at $2,420
Save 65.3%IGI | 4.55ct | Oval | F | VS1 | Very Good
From $892
Compare at $2,571
Save 66.7%IGI | 4.5ct | Oval | E | VS2 | Very Good
From $893
Compare at $2,680
Save 79.8%IGI | 4.52ct | Oval | F | VS2 | Very Good
From $907
Compare at $4,490
Save 66.1%IGI | 4.51ct | Oval | E | VS2 | Good
From $912
Compare at $2,694
Save 66.1%IGI | 4.51ct | Oval | E | VS2 | Excellent
From $912
Compare at $2,694
Save 66%IGI | 4.5ct | Oval | E | VS2 | Excellent
From $913
Compare at $2,683
Save 66%IGI | 4.5ct | Oval | E | VS2 | Very Good
From $913
Compare at $2,683
Entry pricing in this category starts around $552.
What to Know When Shopping for 4.5 Carat Oval Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $27,070 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 $2,706 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.
- Oval diamonds can appear larger than rounds of the same carat weight due to their elongated face-up area. Watch for the bow-tie effect in lower-quality cuts.
Frequently Asked Questions
We currently track 512 comparable stones in this segment. Prices start around $552 and go up to $27,622.
Based on the latest market data, the average asking price is about $3,851 with a median around $2,706.
The observed spread is roughly $27,070 across tracked listings, which is about 98.0% 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 $3,851. The median price is $2,706, 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 12 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 $27,070 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 Oval diamonds.