5.9 Carat Oval Lab Grown Diamond Prices Comparison
As of February 2026, 5.9 carat oval lab grown diamonds usually range from $1,155 to $15,120, with an average price of $2,399.In the last month, prices for these diamonds are down 2.3%.Compare 58 verified listings across 5 retailers tracked by CaratRadar.
5.9 Carat Oval Lab Grown Diamond Market Overview
CaratRadar currently tracks 58 verified 5.9-carat oval lab grown diamonds listed across 5 online retailers. Prices in this segment range from $1,155 to $15,120, with an average asking price of $2,399 and a median of $1,625.
The price spread of $13,965 (92.4% 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.
58 diamonds tracked in this segment
Price range: $1,155 to $15,120
Average price: $2,399
Median price: $1,625
Available across 5 retailers
Savings potential: up to 92.4%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
58
$1,155
$2,399
$1,625
$15,120
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 90.7%5.85ct | Oval | E | VS1 | Excellent
From $1,449
Compare at $15,530
IGISave 88.4%5.85ct | Oval | G | VVS2 | Ideal
From $1,397
Compare at $12,070
GIASave 81.6%5.85ct | Oval | G | VS1 | Excellent
From $2,879
Compare at $15,610
IGISave 43.8%5.85ct | Oval | F | VS1 | Ideal
From $8,527
Compare at $15,185
IGISave 56.9%5.85ct | Oval | F | VS1 | Very Good
From $2,221
Compare at $5,158
IGISave 90.3%5.85ct | Oval | E | VVS2 | Excellent
From $1,545
Compare at $15,920
IGISave 90.7%5.85ct | Oval | D | VS1 | Excellent
From $1,534
Compare at $16,490
IGISave 85.8%5.85ct | Oval | D | VS1 | Ideal
From $2,144
Compare at $15,100
IGISave 90%5.85ct | Oval | F | VVS2 | Excellent
From $1,454
Compare at $14,580
IGISave 89.2%5.85ct | Oval | E | VS2 | Excellent
From $1,419
Compare at $13,110
IGISave 77.3%5.85ct | Oval | D | VS1 | Ideal
From $3,401
Compare at $15,010
IGISave 32.9%5.85ct | Oval | G | VS1 | Very Good
From $1,324
Compare at $1,973
IGISave 80%5.85ct | Oval | F | VS1 | Excellent
From $1,477
Compare at $7,390
IGISave 26.6%5.86ct | Oval | E | VS1 | Very Good
From $1,955
Compare at $2,663
IGISave 90.9%5.86ct | Oval | E | VS1 | Excellent
From $1,421
Compare at $15,560
IGISave 72.2%5.86ct | Oval | F | VS2 | Ideal
From $1,859
Compare at $6,680
IGISave 90.2%5.86ct | Oval | D | VS1 | Excellent
From $1,623
Compare at $16,520
IGISave 38.5%5.86ct | Oval | G | VS2 | Excellent
From $2,384
Compare at $3,877
IGISave 77.9%5.87ct | Oval | E | VS1 | Ideal
From $2,211
Compare at $10,020
IGISave 90.2%5.87ct | Oval | D | VS1 | Excellent
From $1,626
Compare at $16,540
IGISave 90.3%5.87ct | Oval | E | VVS2 | Excellent
From $1,550
Compare at $15,970
IGISave 61%5.87ct | Oval | G | VS2 | Ideal
From $1,155
Compare at $2,959
IGISave 90.7%5.87ct | Oval | E | VS1 | Excellent
From $1,453
Compare at $15,580
IGI5.88ct | Oval | G | VS1 | Very Good
From $1,870
Compare at $2,019
IGISave 85.7%5.88ct | Oval | G | VS1 | Excellent
From $1,532
Compare at $10,700
IGISave 90.3%5.88ct | Oval | E | VVS2 | Excellent
From $1,552
Compare at $15,990
GIASave 77.5%5.88ct | Oval | D | VVS1 | Excellent
From $8,302
Compare at $36,930
IGISave 90.9%5.88ct | Oval | E | VS1 | Excellent
From $1,425
Compare at $15,610
IGISave 82.1%5.88ct | Oval | E | VS1 | Ideal
From $3,949
Compare at $22,050
IGISave 90.9%5.89ct | Oval | E | VS1 | Excellent
From $1,428
Compare at $15,630
IGISave 87.2%5.9ct | Oval | F | VVS2 | Excellent
From $1,749
Compare at $13,680
GIASave 56.7%5.9ct | Oval | E | VVS2 | Ideal
From $15,120
Compare at $34,880
IGISave 91%5.9ct | Oval | F | VS1 | Excellent
From $1,360
Compare at $15,080
IGISave 54.1%5.9ct | Oval | E | VS1 | Excellent
From $1,886
Compare at $4,108
IGISave 38.5%5.9ct | Oval | G | VS2 | Excellent
From $2,400
Compare at $3,903
IGISave 88.3%5.9ct | Oval | E | VVS2 | Excellent
From $1,884
Compare at $16,050
IGISave 85.6%5.91ct | Oval | G | VS2 | Ideal
From $1,389
Compare at $9,650
IGISave 81.2%5.91ct | Oval | F | VVS2 | Very Good
From $2,139
Compare at $11,390
IGISave 89.3%5.91ct | Oval | E | VS1 | Ideal
From $1,770
Compare at $16,500
IGISave 89.8%5.91ct | Oval | F | VVS2 | Excellent
From $1,496
Compare at $14,720
IGISave 66.6%5.91ct | Oval | F | VS2 | Ideal
From $3,546
Compare at $10,630
IGISave 87.1%5.91ct | Oval | E | VVS2 | Ideal
From $2,115
Compare at $16,440
IGISave 72.2%5.91ct | Oval | E | VS2 | Very Good
From $1,332
Compare at $4,785
IGISave 68.2%5.91ct | Oval | D | VS1 | Excellent
From $1,840
Compare at $5,790
IGISave 72.4%5.91ct | Oval | D | VVS2 | Ideal
From $3,687
Compare at $13,340
IGISave 89.4%5.91ct | Oval | E | VS1 | Excellent
From $1,594
Compare at $15,020
IGISave 90.9%5.92ct | Oval | E | VS1 | Excellent
From $1,434
Compare at $15,710
IGISave 78.9%5.92ct | Oval | F | VVS2 | Ideal
From $1,939
Compare at $9,170
IGISave 89.8%5.92ct | Oval | F | VVS2 | Excellent
From $1,498
Compare at $14,750
IGISave 24.6%5.92ct | Oval | H | SI1 | Excellent
From $1,205
Compare at $1,598
Entry pricing in this category starts around $1,155.
What to Know When Shopping for 5.9 Carat Oval Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $13,965 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 $1,625 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 58 comparable stones in this segment. Prices start around $1,155 and go up to $15,120.
Based on the latest market data, the average asking price is about $2,399 with a median around $1,625.
The observed spread is roughly $13,965 across tracked listings, which is about 92.4% 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 $1,625, 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 5 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 $13,965 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 5.9 carat Oval diamonds.