4.5 Carat Oval Lab Grown Diamond Prices Comparison
As of February 2026, 4.5 carat oval lab grown diamonds usually range from $831 to $39,620, with an average price of $2,740.In the last month, prices for these diamonds are down 2.6%.Compare 501 verified listings across 11 retailers tracked by CaratRadar.
4.5 Carat Oval Lab Grown Diamond Market Overview
CaratRadar currently tracks 501 verified 4.5-carat oval lab grown diamonds listed across 11 online retailers. Prices in this segment range from $831 to $39,620, with an average asking price of $2,740 and a median of $1,521.
The price spread of $38,789 (97.9% 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.
501 diamonds tracked in this segment
Price range: $831 to $39,620
Average price: $2,740
Median price: $1,521
Available across 11 retailers
Savings potential: up to 97.9%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
501
$831
$2,740
$1,521
$39,620
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 40.5%4.46ct | Oval | I | VS1 | Ideal
From $1,481
Compare at $2,487
IGISave 78.7%4.46ct | Oval | E | VS2 | Ideal
From $1,136
Compare at $5,330
IGISave 56.2%4.46ct | Oval | D | VVS1 | Ideal
From $8,628
Compare at $19,700
IGISave 71.9%4.46ct | Oval | D | VVS2 | Excellent
From $3,577
Compare at $12,750
IGISave 79.2%4.46ct | Oval | E | VVS2 | Very Good
From $1,511
Compare at $7,250
IGISave 89.1%4.46ct | Oval | E | VS1 | Ideal
From $1,225
Compare at $11,200
IGISave 74.9%4.46ct | Oval | F | VVS2 | Excellent
From $1,533
Compare at $6,100
IGISave 33.2%4.46ct | Oval | D | VVS1 | Excellent
From $6,824
Compare at $10,221
IGISave 82.9%4.46ct | Oval | E | VS1 | Ideal
From $1,909
Compare at $11,140
IGISave 85%4.46ct | Oval | G | VS1 | Ideal
From $1,379
Compare at $9,180
IGISave 84.9%4.46ct | Oval | E | VVS2 | Ideal
From $1,730
Compare at $11,480
IGISave 38.8%4.46ct | Oval | D | FL | Very Good
From $23,029
Compare at $37,645
IGISave 66.2%4.46ct | Oval | E | VS1 | Very Good
From $1,297
Compare at $3,835
GIASave 68.8%4.47ct | Oval | D | VVS1 | Excellent
From $6,552
Compare at $21,035
GIASave 82.1%4.47ct | Oval | F | VVS2 | Excellent
From $4,227
Compare at $23,680
GIASave 79.9%4.47ct | Oval | D | IF | Ideal
From $10,449
Compare at $52,010
IGISave 77.1%4.47ct | Oval | D | VS1 | Ideal
From $2,032
Compare at $8,890
IGISave 41.9%4.47ct | Oval | H | VS2 | Ideal
From $906
Compare at $1,558
IGISave 76.1%4.47ct | Oval | E | VS2 | Ideal
From $1,807
Compare at $7,550
IGISave 77.6%4.47ct | Oval | G | VVS2 | Excellent
From $1,714
Compare at $7,638
IGISave 89.9%4.47ct | Oval | E | VS1 | Good
From $1,130
Compare at $11,220
IGISave 82.2%4.47ct | Oval | D | VVS1 | Ideal
From $4,288
Compare at $24,155
GIASave 79.9%4.47ct | Oval | D | IF | Excellent
From $10,449
Compare at $52,010
IGISave 65%4.47ct | Oval | E | VS1 | Excellent
From $1,297
Compare at $3,710
IGISave 12.5%4.47ct | Oval | E | VS2 | Ideal
From $5,330
Compare at $6,090
GIASave 13.2%4.47ct | Oval | G | VS1 | Ideal
From $4,738
Compare at $5,460
IGISave 84.9%4.47ct | Oval | G | VS2 | Good
From $1,119
Compare at $7,400
IGISave 83.4%4.47ct | Oval | H | VS1 | Very Good
From $1,137
Compare at $6,860
IGISave 82.7%4.47ct | Oval | F | VVS2 | Ideal
From $1,380
Compare at $7,990
IGISave 81.7%4.47ct | Oval | E | VVS2 | Excellent
From $1,734
Compare at $9,470
IGISave 13.8%4.47ct | Oval | E | VVS2 | Excellent
From $1,601
Compare at $1,858
IGISave 77.5%4.48ct | Oval | G | VS1 | Excellent
From $1,148
Compare at $5,110
IGISave 37.5%4.48ct | Oval | G | VS2 | Excellent
From $2,099
Compare at $3,356
GIASave 67%4.48ct | Oval | E | VVS1 | Excellent
From $5,347
Compare at $16,225
GIASave 79.9%4.48ct | Oval | D | VS1 | Excellent
From $3,299
Compare at $16,400
IGISave 70.1%4.48ct | Oval | D | FL | Very Good
From $17,808
Compare at $59,640
GCALSave 77.5%4.48ct | Oval | F | VS1 | Ideal
From $2,392
Compare at $10,640
IGISave 81.2%4.48ct | Oval | F | SI2 | Ideal
From $1,058
Compare at $5,620
IGISave 56.2%4.48ct | Oval | D | VVS1 | Ideal
From $8,667
Compare at $19,780
IGISave 86.6%4.49ct | Oval | D | VVS2 | Ideal
From $1,722
Compare at $12,830
GIASave 72.3%4.49ct | Oval | D | IF | Ideal
From $14,493
Compare at $52,240
IGISave 82.2%4.49ct | Oval | H | VS1 | Ideal
From $1,253
Compare at $7,030
IGISave 53.3%4.49ct | Oval | F | VS2 | Very Good
From $1,292
Compare at $2,766
IGISave 69.3%4.49ct | Oval | E | VVS1 | Ideal
From $4,272
Compare at $13,907
IGISave 68.3%4.49ct | Oval | D | IF | Excellent
From $6,777
Compare at $21,355
IGISave 65.2%4.49ct | Oval | E | VS2 | Very Good
From $1,266
Compare at $3,635
IGISave 73.8%4.49ct | Oval | G | VS1 | Ideal
From $1,254
Compare at $4,790
IGISave 14.9%4.49ct | Oval | E | VS1 | Very Good
From $1,320
Compare at $1,551
IGISave 40.1%4.5ct | Oval | H | SI1 | Ideal
From $962
Compare at $1,607
IGISave 46.1%4.5ct | Oval | E | VS1 | Very Good
From $1,146
Compare at $2,127
Entry pricing in this category starts around $831.
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 $38,789 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 $1,521 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 501 comparable stones in this segment. Prices start around $831 and go up to $39,620.
Based on the latest market data, the average asking price is about $2,740 with a median around $1,521.
The observed spread is roughly $38,789 across tracked listings, which is about 97.9% 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 $1,521, 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 11 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 $38,789 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.