1.8 Carat Oval Natural Diamond Prices Comparison
As of May 2026, 1.8 carat oval natural diamonds usually range from $899 to $32,355, with an average price of $14,317.In the last month, prices for these diamonds are up 0.1%.Compare 144 verified listings across 9 retailers tracked by CaratRadar.
1.8 Carat Oval Natural Diamond Market Overview
CaratRadar currently tracks 144 verified 1.8-carat oval natural diamonds listed across 9 online retailers. Prices in this segment range from $899 to $32,355, with an average asking price of $14,317 and a median of $13,974.
The price spread of $31,456 (97.2% 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.
144 diamonds tracked in this segment
Price range: $899 to $32,355
Average price: $14,317
Median price: $13,974
Available across 9 retailers
Savings potential: up to 97.2%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
144
$899
$14,317
$13,975
$32,355
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 19.7%IGI | 1.82ct | Oval | K | VVS2 | Very Good
From $3,730
Compare at $4,646
Save 14.8%IGI | 1.81ct | Oval | K | VVS1 | Ideal
From $3,830
Compare at $4,497
Save 11.5%IGI | 1.81ct | Oval | K | VVS2 | Very Good
From $4,095
Compare at $4,626
Save 11.1%IGI | 1.85ct | Oval | J | VS2 | Very Good
From $5,150
Compare at $5,794
Save 23.2%GIA | 1.81ct | Oval | K | SI1 | Excellent
From $5,304
Compare at $6,907
IGI | 1.81ct | Oval | J | VS1 | Very Good
From $5,387
Compare at $5,390
Save 23.6%GIA | 1.81ct | Oval | L | VS1 | Excellent
From $5,398
Compare at $7,062
Save 14.3%IGI | 1.81ct | Oval | E | SI2 | Ideal
From $5,488
Compare at $6,400
Save 15.5%IGI | 1.81ct | Oval | J | VVS1 | Very Good
From $5,860
Compare at $6,932
Save 27.3%GIA | 1.81ct | Oval | J | SI2 | Excellent
From $6,050
Compare at $8,318
IGI | 1.81ct | Oval | J | VS1 | Ideal
From $6,112
Compare at $6,355
GIA | 1.81ct | Oval | K | VS1 | Ideal
From $6,215
Compare at $6,422
Save 22%GIA | 1.84ct | Oval | K | VS1 | Excellent
From $6,242
Compare at $8,006
Save 21%GIA | 1.81ct | Oval | J | SI2 | Excellent
From $6,445
Compare at $8,155
Save 18.8%IGI | 1.81ct | Oval | J | VVS1 | Very Good
From $6,455
Compare at $7,951
GIA | 1.81ct | Oval | K | VS2 | Ideal
From $6,480
Compare at $6,573
Save 40.4%GIA | 1.82ct | Oval | J | VS2 | Ideal
From $6,517
Compare at $10,935
GIA | 1.87ct | Oval | L | SI1 | Very Good
From $6,522
Compare at $6,913
IGI | 1.82ct | Oval | J | VVS2 | Ideal
From $6,734
Compare at $7,055
Save 19.1%IGI | 1.81ct | Oval | I | SI1 | Ideal
From $6,890
Compare at $8,518
Save 16.8%GIA | 1.81ct | Oval | J | SI1 | Excellent
From $6,891
Compare at $8,285
Save 21.6%GIA | 1.82ct | Oval | J | VS2 | Very Good
From $7,077
Compare at $9,030
Save 14.6%IGI | 1.82ct | Oval | I | VS1 | Very Good
From $7,140
Compare at $8,359
IGI | 1.81ct | Oval | I | VS1 | Ideal
From $7,270
Compare at $7,690
Save 37.4%GIA | 1.81ct | Oval | K | VVS1 | Excellent
From $7,325
Compare at $11,694
IGI | 1.81ct | Oval | J | VVS1 | Ideal
From $7,405
Compare at $7,883
Save 10.7%IGI | 1.81ct | Oval | H | SI1 | Very Good
From $7,515
Compare at $8,418
IGI | 1.81ct | Oval | H | SI1 | Ideal
From $7,515
Compare at $8,011
Save 22.8%GIA | 1.81ct | Oval | J | SI1 | Very Good
From $7,560
Compare at $9,788
Save 37.2%GIA | 1.81ct | Oval | I | SI2 | Excellent
From $7,750
Compare at $12,350
GIA | 1.82ct | Oval | J | SI1 | Ideal
From $7,805
Compare at $7,969
Save 15.8%GIA | 1.82ct | Oval | K | SI1 | Excellent
From $7,847
Compare at $9,324
Save 20%GIA | 1.81ct | Oval | J | SI2 | Excellent
From $7,948
Compare at $9,936
Save 26.7%GIA | 1.81ct | Oval | J | VS1 | Very Good
From $8,045
Compare at $10,971
Save 19.7%IGI | 1.81ct | Oval | H | VS2 | Ideal
From $8,055
Compare at $10,028
GIA | 1.81ct | Oval | J | VS2 | Ideal
From $8,085
Compare at $8,269
Save 18.2%GIA | 1.81ct | Oval | J | SI2 | Excellent
From $8,137
Compare at $9,947
Save 38.6%GIA | 1.81ct | Oval | G | SI2 | Good
From $8,168
Compare at $13,312
GIA | 1.81ct | Oval | J | IF | Ideal
From $8,200
Compare at $8,727
GIA | 1.81ct | Oval | J | SI2 | Ideal
From $8,339
Compare at $8,709
Save 18.3%GIA | 1.81ct | Oval | J | VVS1 | Excellent
From $8,495
Compare at $10,399
Save 36.9%GIA | 1.88ct | Oval | J | SI2 | Excellent
From $8,661
Compare at $13,734
Save 22.7%GIA | 1.82ct | Oval | H | SI2 | Very Good
From $8,708
Compare at $11,260
Save 37.1%GIA | 1.81ct | Oval | J | SI1 | Excellent
From $8,869
Compare at $14,097
Save 38.5%GIA | 1.81ct | Oval | F | SI2 | Good
From $8,882
Compare at $14,450
Save 41.4%GIA | 1.81ct | Oval | J | VVS1 | Very Good
From $8,951
Compare at $15,286
Save 10.4%IGI | 1.84ct | Oval | I | VS1 | Very Good
From $8,960
Compare at $10,002
Save 23%GIA | 1.81ct | Oval | H | SI1 | Excellent
From $8,975
Compare at $11,663
Save 36.9%GIA | 1.81ct | Oval | I | SI1 | Excellent
From $9,078
Compare at $14,385
Save 25.6%GIA | 1.81ct | Oval | K | VS2 | Excellent
From $9,150
Compare at $12,304
Entry pricing in this category starts around $899.
What to Know When Shopping for 1.8 Carat Oval Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $31,456 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 $13,974 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 144 comparable stones in this segment. Prices start around $899 and go up to $32,355.
Based on the latest market data, the average asking price is about $14,317 with a median around $13,974.
The observed spread is roughly $31,456 across tracked listings, which is about 97.2% 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 $14,317. The median price is $13,974, 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 9 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 $31,456 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 1.8 carat Oval diamonds.