5.1 Carat Oval Natural Diamond Prices Comparison
As of February 2026, 5.1 carat oval natural diamonds usually range from $1,185 to $182,450, with an average price of $26,786.In the last month, prices for these diamonds are down 5.1%.Compare 34 verified listings across 5 retailers tracked by CaratRadar.
5.1 Carat Oval Natural Diamond Market Overview
CaratRadar currently tracks 34 verified 5.1-carat oval natural diamonds listed across 5 online retailers. Prices in this segment range from $1,185 to $182,450, with an average asking price of $26,786 and a median of $1,960.
The price spread of $181,265 (99.4% 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.
34 diamonds tracked in this segment
Price range: $1,185 to $182,450
Average price: $26,786
Median price: $1,960
Available across 5 retailers
Savings potential: up to 99.4%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
34
$1,185
$26,786
$1,960
$182,450
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
GIASave 22.6%5.05ct | Oval | D | VS2 | Good
From $168,033
Compare at $217,137
GIASave 23%5.05ct | Oval | G | VS2 | Ideal
From $122,400
Compare at $158,859
IGISave 25.2%5.05ct | Oval | E | VVS2 | Ideal
From $3,075
Compare at $4,111
IGISave 72.8%5.05ct | Oval | E | VVS2 | Ideal
From $4,387
Compare at $16,110
GIASave 13.3%5.05ct | Oval | G | VS1 | Ideal
From $143,930
Compare at $166,023
GIASave 26.9%5.05ct | Oval | K | SI1 | Very Good
From $46,022
Compare at $62,992
IGISave 17.8%5.05ct | Oval | F | VVS2 | Very Good
From $1,195
Compare at $1,454
IGISave 58.9%5.05ct | Oval | D | VS1 | Very Good
From $2,035
Compare at $4,945
IGISave 44.6%5.05ct | Oval | F | VVS2 | Excellent
From $1,297
Compare at $2,339
GIA5.06ct | Oval | L | SI1 | Excellent
From $36,596
Compare at $40,166
IGISave 76.1%5.06ct | Oval | E | VS2 | Very Good
From $1,719
Compare at $7,200
5.06ct | Oval | FANCY | VS1 | Good
From $1,873
Compare at $4,933
IGISave 58.5%5.06ct | Oval | FANCY | VS1 | Very Good
From $1,291
Compare at $3,111
IGISave 16.4%5.06ct | Oval | F | VVS2 | Very Good
From $1,268
Compare at $1,517
IGISave 77.1%5.07ct | Oval | E | VS1 | Ideal
From $2,086
Compare at $9,130
IGISave 86.9%5.07ct | Oval | D | VVS2 | Very Good
From $1,886
Compare at $14,430
IGISave 57.3%5.07ct | Oval | FANCY | VS2 | Good
From $1,788
Compare at $4,183
IGISave 55.6%5.07ct | Oval | G | VS1 | Ideal
From $1,520
Compare at $3,419
IGISave 81.6%5.07ct | Oval | F | VS2 | Ideal
From $1,185
Compare at $6,440
GIASave 57.7%5.08ct | Oval | D | VS1 | Ideal
From $3,707
Compare at $8,757
IGISave 41.2%5.08ct | Oval | E | VVS2 | Excellent
From $1,293
Compare at $2,201
GIASave 30.9%5.09ct | Oval | F | IF | Ideal
From $182,450
Compare at $264,003
IGISave 83.8%5.09ct | Oval | E | VVS2 | Ideal
From $2,092
Compare at $12,950
GIASave 71.8%5.09ct | Oval | G | VS1 | Excellent
From $2,727
Compare at $9,660
IGISave 61.8%5.09ct | Oval | E | VVS2 | Excellent
From $1,296
Compare at $3,387
IGISave 43.1%5.09ct | Oval | E | VVS2 | Excellent
From $1,377
Compare at $2,418
GIASave 32.8%5.1ct | Oval | F | VS1 | Excellent
From $2,915
Compare at $4,338
IGISave 82%5.1ct | Oval | F | VVS2 | Ideal
From $3,641
Compare at $20,240
IGISave 61.5%5.1ct | Oval | E | VVS2 | Excellent
From $1,308
Compare at $3,395
IGISave 70.9%5.1ct | Oval | D | VVS2 | Very Good
From $1,884
Compare at $6,481
IGISave 50.3%5.11ct | Oval | FANCY | VS1 | Good
From $2,934
Compare at $5,902
GIASave 14.2%5.13ct | Oval | F | VS1 | Excellent
From $156,820
Compare at $182,870
IGISave 56.1%5.13ct | Oval | E | VS1 | Very Good
From $1,481
Compare at $3,371
IGISave 70.2%5.14ct | Oval | F | VS1 | Very Good
From $1,212
Compare at $4,060
Entry pricing in this category starts around $1,185.
What to Know When Shopping for 5.1 Carat Oval Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $181,265 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 $1,960 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.
- Compare natural vs. lab-grown options for the same carat and shape. Lab-grown diamonds are chemically identical but often 30-50% less expensive.
- 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 34 comparable stones in this segment. Prices start around $1,185 and go up to $182,450.
Based on the latest market data, the average asking price is about $26,786 with a median around $1,960.
The observed spread is roughly $181,265 across tracked listings, which is about 99.4% 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 $1,960, 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 $181,265 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 Natural inventory for 5.1 carat Oval diamonds.