4.5 Carat Oval Lab Grown Diamond Prices Comparison
As of October 2026, 4.5 carat oval lab grown diamonds in the 4.50–4.99 carat benchmark range usually range from $535 to $31,043, with an average price of $3,329.In the last month, prices for these diamonds are down 1%.Compare 2,425 verified listings across 15 retailers tracked by CaratRadar.
4.5 Carat Oval Lab Grown Diamond Market Overview
CaratRadar currently tracks 2,425 verified 4.5-carat oval lab grown diamonds in the 4.50–4.99 carat benchmark range, listed across 15 online retailers. Prices in this segment range from $535 to $31,043, with an average asking price of $3,329 and a median of $2,339.
The price spread of $30,508 (98.3% 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.
2,425 diamonds tracked in the 4.50–4.99 carat benchmark
Price range: $535 to $31,043
Average price: $3,329
Median price: $2,339
Available across 15 retailers
Savings potential: up to 98.3%
Price Range Overview
As of Oct 15, 2026Real market range for this carat, shape, and diamond type.
2,425
$535
$3,329
$2,339
$31,043
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 73%IGI | 4.51ct | Oval | G | VS1 | Ideal
From $634
Compare at $2,352
Save 65.4%IGI | 4.5ct | Oval | G | VVS2 | Very Good
From $683
Compare at $1,972
Save 68.9%IGI | 4.52ct | Oval | F | VS1 | Very Good
From $686
Compare at $2,209
Save 65.7%IGI | 4.54ct | Oval | G | VVS2 | Very Good
From $688
Compare at $2,006
Save 78.1%IGI | 4.5ct | Oval | F | VS2 | Excellent
From $700
Compare at $3,197
Save 59.6%IGI | 4.52ct | Oval | F | VS1 | Very Good
From $702
Compare at $1,736
Save 69%IGI | 4.53ct | Oval | G | VS2 | Excellent
From $713
Compare at $2,297
Save 69%IGI | 4.51ct | Oval | F | VS2 | Very Good
From $718
Compare at $2,313
Save 67%IGI | 4.51ct | Oval | G | VS2 | Ideal
From $718
Compare at $2,176
Save 60.5%IGI | 4.58ct | Oval | F | VS2 | Ideal
From $720
Compare at $1,825
Save 79.4%IGI | 4.52ct | Oval | G | VS2 | Ideal
From $720
Compare at $3,490
Save 79.4%IGI | 4.75ct | Oval | F | SI1 | Ideal
From $725
Compare at $3,520
Save 68.7%IGI | 4.5ct | Oval | G | VS1 | Excellent
From $725
Compare at $2,315
Save 68.7%IGI | 4.5ct | Oval | G | VS1 | Excellent
From $725
Compare at $2,315
Save 67%IGI | 4.5ct | Oval | G | VS1 | Excellent
From $725
Compare at $2,198
Save 70.7%IGI | 4.67ct | Oval | G | VS2 | Excellent
From $728
Compare at $2,482
Save 68.7%IGI | 4.52ct | Oval | G | VS1 | Ideal
From $728
Compare at $2,325
Save 70.7%IGI | 4.71ct | Oval | G | VS1 | Very Good
From $733
Compare at $2,502
Save 58.2%IGI | 4.5ct | Oval | E | VS2 | Excellent
From $733
Compare at $1,755
Save 69.8%IGI | 4.5ct | Oval | E | VS2 | Very Good
From $733
Compare at $2,429
Save 68.7%IGI | 4.51ct | Oval | F | VS1 | Very Good
From $735
Compare at $2,347
Save 68.7%IGI | 4.52ct | Oval | F | VS1 | Excellent
From $737
Compare at $2,352
Save 69.8%IGI | 4.53ct | Oval | E | VS2 | Very Good
From $738
Compare at $2,445
Save 70.7%IGI | 4.53ct | Oval | F | VVS2 | Very Good
From $738
Compare at $2,519
Save 70.7%IGI | 4.54ct | Oval | F | VVS2 | Ideal
From $740
Compare at $2,524
Save 68.7%IGI | 4.54ct | Oval | F | VS1 | Very Good
From $740
Compare at $2,362
Save 69.8%IGI | 4.5ct | Oval | G | VVS2 | Ideal
From $741
Compare at $2,450
Save 69.8%IGI | 4.5ct | Oval | G | VVS2 | Excellent
From $741
Compare at $2,450
Save 68%IGI | 4.5ct | Oval | G | VVS2 | Very Good
From $741
Compare at $2,313
Save 42.6%IGI | 4.5ct | Oval | FANCY | SI1 | Very Good
From $742
Compare at $1,292
Save 68.7%IGI | 4.55ct | Oval | F | VS1 | Very Good
From $742
Compare at $2,367
Save 78.3%IGI | 4.73ct | Oval | H | VS1 | Excellent
From $743
Compare at $3,420
Save 69.7%IGI | 4.51ct | Oval | G | VVS2 | Excellent
From $743
Compare at $2,454
Save 69.7%IGI | 4.51ct | Oval | G | VVS2 | Excellent
From $743
Compare at $2,454
Save 57.9%IGI | 4.51ct | Oval | E | VS2 | Good
From $743
Compare at $1,763
Save 70.7%IGI | 4.57ct | Oval | F | VVS2 | Very Good
From $745
Compare at $2,540
Save 68.7%IGI | 4.57ct | Oval | F | VS1 | Ideal
From $745
Compare at $2,377
Save 78.1%IGI | 4.52ct | Oval | E | VS2 | Excellent
From $745
Compare at $3,407
Save 69.7%IGI | 4.52ct | Oval | G | VVS2 | Excellent
From $745
Compare at $2,460
Save 70.7%IGI | 4.54ct | Oval | G | VVS2 | Very Good
From $748
Compare at $2,551
Save 70.9%IGI | 4.51ct | Oval | F | VS1 | Ideal
From $751
Compare at $2,579
Save 78.2%IGI | 4.54ct | Oval | F | VS1 | Ideal
From $756
Compare at $3,461
Save 78.1%IGI | 4.56ct | Oval | F | VS1 | Excellent
From $760
Compare at $3,477
Save 59.5%IGI | 4.51ct | Oval | F | VVS2 | Excellent
From $760
Compare at $1,878
Save 59.5%IGI | 4.51ct | Oval | F | VVS2 | Very Good
From $760
Compare at $1,878
Save 72.1%IGI | 4.51ct | Oval | F | VVS2 | Ideal
From $762
Compare at $2,734
Save 59.1%IGI | 4.52ct | Oval | F | VVS2 | Very Good
From $762
Compare at $1,861
Save 68.6%IGI | 4.6ct | Oval | F | VS2 | Excellent
From $768
Compare at $2,445
Save 47.1%IGI | 4.51ct | Oval | G | VVS2 | Very Good
From $768
Compare at $1,453
Save 68.7%IGI | 4.61ct | Oval | H | VVS2 | Ideal
From $769
Compare at $2,453
Entry pricing in this benchmark range starts around $535.
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 $30,508 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 $2,339 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 2,425 comparable stones in the 4.50–4.99 carat benchmark range. Prices start around $535 and go up to $31,043.
Based on the latest market data, the average asking price is about $3,329 with a median around $2,339.
The observed spread is roughly $30,508 across tracked listings, which is about 98.3% from highest to lowest offer in the 4.50–4.99 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 $3,329. The median price is $2,339, 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 $30,508 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 the 4.50–4.99 carat Oval diamond benchmark.