1.5 Carat Oval Lab Grown Diamond Prices Comparison
As of May 2026, 1.5 carat oval lab grown diamonds usually range from $239 to $4,811, with an average price of $1,142.In the last month, prices for these diamonds are up 0.7%.Compare 32,743 verified listings across 13 retailers tracked by CaratRadar.
1.5 Carat Oval Lab Grown Diamond Market Overview
CaratRadar currently tracks 32,743 verified 1.5-carat oval lab grown diamonds listed across 13 online retailers. Prices in this segment range from $239 to $4,811, with an average asking price of $1,142 and a median of $916.
The price spread of $4,572 (95.0% 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.
32,743 diamonds tracked in this segment
Price range: $239 to $4,811
Average price: $1,142
Median price: $916
Available across 13 retailers
Savings potential: up to 95.0%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
32,743
$239
$1,142
$916
$4,811
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 78.2%IGI | 1.51ct | Oval | E | SI1 | Ideal
From $244
Compare at $1,120
Save 78%IGI | 1.52ct | Oval | E | SI1 | Ideal
From $246
Compare at $1,120
Save 79.2%IGI | 1.53ct | Oval | E | SI1 | Ideal
From $247
Compare at $1,190
Save 56.1%IGI | 1.51ct | Oval | G | VS1 | Very Good
From $251
Compare at $572
Save 56.1%IGI | 1.51ct | Oval | G | VS1 | Very Good
From $251
Compare at $572
Save 57.2%IGI | 1.53ct | Oval | G | VS1 | Very Good
From $251
Compare at $586
Save 57.3%IGI | 1.54ct | Oval | G | VS1 | Very Good
From $253
Compare at $592
Save 55.6%IGI | 1.5ct | Oval | H | VS1 | Very Good
From $254
Compare at $572
Save 59.2%IGI | 1.54ct | Oval | G | VVS2 | Very Good
From $256
Compare at $627
Save 77.5%IGI | 1.5ct | Oval | G | SI1 | Very Good
From $256
Compare at $1,140
Save 56%IGI | 1.53ct | Oval | G | VS1 | Very Good
From $258
Compare at $587
Save 54.4%IGI | 1.5ct | Oval | G | VS1 | Very Good
From $258
Compare at $566
Save 57.4%IGI | 1.56ct | Oval | G | VS1 | Very Good
From $258
Compare at $605
Save 77%IGI | 1.51ct | Oval | G | VS1 | Very Good
From $260
Compare at $1,130
Save 56.8%IGI | 1.53ct | Oval | E | SI1 | Very Good
From $262
Compare at $606
Save 57.7%IGI | 1.53ct | Oval | G | VVS2 | Very Good
From $262
Compare at $620
Save 57.2%IGI | 1.52ct | Oval | G | VVS2 | Very Good
From $263
Compare at $615
Save 79.6%IGI | 1.57ct | Oval | G | VS1 | Ideal
From $265
Compare at $1,300
Save 56.3%IGI | 1.51ct | Oval | G | VVS2 | Very Good
From $265
Compare at $607
Save 60.1%IGI | 1.59ct | Oval | G | VVS2 | Very Good
From $265
Compare at $664
Save 57.1%IGI | 1.58ct | Oval | G | VS1 | Ideal
From $267
Compare at $622
Save 57.1%IGI | 1.58ct | Oval | G | VS1 | Ideal
From $267
Compare at $622
Save 57.1%IGI | 1.58ct | Oval | G | VS1 | Ideal
From $267
Compare at $622
Save 78.1%IGI | 1.52ct | Oval | H | VVS2 | Excellent
From $267
Compare at $1,220
Save 78.8%IGI | 1.51ct | Oval | H | VVS2 | Excellent
From $269
Compare at $1,270
Save 76.1%IGI | 1.6ct | Oval | H | VS1 | Ideal
From $270
Compare at $1,130
Save 78.2%IGI | 1.58ct | Oval | H | VS1 | Excellent
From $270
Compare at $1,240
Save 79.2%IGI | 1.58ct | Oval | H | VS1 | Excellent
From $270
Compare at $1,300
Save 78%IGI | 1.5ct | Oval | G | VVS2 | Very Good
From $271
Compare at $1,230
Save 58.3%IGI | 1.57ct | Oval | G | VVS2 | Ideal
From $272
Compare at $652
Save 78.2%IGI | 1.55ct | Oval | H | VVS2 | Excellent
From $272
Compare at $1,250
Save 76.9%IGI | 1.55ct | Oval | H | VVS2 | Excellent
From $272
Compare at $1,180
Save 70.9%IGI | 1.59ct | Oval | G | VVS2 | Excellent
From $272
Compare at $934
Save 77%IGI | 1.6ct | Oval | H | VS1 | Very Good
From $274
Compare at $1,190
Save 55.4%IGI | 1.5ct | Oval | F | VS2 | Very Good
From $274
Compare at $615
Save 58.4%IGI | 1.56ct | Oval | F | VS2 | Very Good
From $274
Compare at $658
Save 74.9%IGI | 1.55ct | Oval | H | VS2 | Excellent
From $276
Compare at $1,100
Save 64.4%IGI | 1.5ct | Oval | F | VS2 | Ideal
From $276
Compare at $776
Save 64.4%IGI | 1.5ct | Oval | E | VS2 | Ideal
From $276
Compare at $776
Save 55%IGI | 1.5ct | Oval | F | VS2 | Very Good
From $277
Compare at $616
Save 56%IGI | 1.52ct | Oval | F | VS2 | Very Good
From $277
Compare at $630
Save 57.3%IGI | 1.57ct | Oval | G | VVS2 | Very Good
From $277
Compare at $649
Save 55%IGI | 1.5ct | Oval | F | VS2 | Very Good
From $277
Compare at $616
Save 58.1%IGI | 1.57ct | Oval | F | VS2 | Very Good
From $279
Compare at $666
Save 58.1%IGI | 1.57ct | Oval | F | VS2 | Very Good
From $279
Compare at $666
Save 44%IGI | 1.6ct | Oval | F | VS1 | Very Good
From $279
Compare at $498
Save 57.4%IGI | 1.51ct | Oval | E | VS1 | Very Good
From $279
Compare at $655
Save 55.1%IGI | 1.5ct | Oval | E | VS2 | Very Good
From $281
Compare at $626
Save 55.1%IGI | 1.5ct | Oval | E | VS2 | Very Good
From $281
Compare at $626
Save 59.9%IGI | 1.6ct | Oval | E | VS2 | Very Good
From $281
Compare at $700
Entry pricing in this category starts around $239.
What to Know When Shopping for 1.5 Carat Oval Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $4,572 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 $916 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 32,743 comparable stones in this segment. Prices start around $239 and go up to $4,811.
Based on the latest market data, the average asking price is about $1,142 with a median around $916.
The observed spread is roughly $4,572 across tracked listings, which is about 95.0% 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 $1,142. The median price is $916, 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 13 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 $4,572 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.
1.4 Carat Oval Lab Grown Diamond Prices
1.6 Carat Oval Lab Grown Diamond Prices
1.3 Carat Oval Lab Grown Diamond Prices
1.7 Carat Oval Lab Grown Diamond Prices
1.2 Carat Oval Lab Grown Diamond Prices
1.8 Carat Oval Lab Grown Diamond Prices
1.1 Carat Oval Lab Grown Diamond Prices
1.5 Carat Round Lab Grown Diamond Prices
1.5 Carat Pear Lab Grown Diamond Prices
1.5 Carat Marquise Lab Grown Diamond Prices
1.5 Carat Emerald Lab Grown Diamond Prices
1.5 Carat Radiant Lab Grown Diamond Prices
Tracking Lab Grown inventory for 1.5 carat Oval diamonds.