1.8 Carat Oval Natural Diamond Prices Comparison
As of February 2026, 1.8 carat oval natural diamonds usually range from $553 to $30,536, with an average price of $12,167.In the last month, prices for these diamonds are down 1.7%.Compare 464 verified listings across 9 retailers tracked by CaratRadar.
1.8 Carat Oval Natural Diamond Market Overview
CaratRadar currently tracks 464 verified 1.8-carat oval natural diamonds listed across 9 online retailers. Prices in this segment range from $553 to $30,536, with an average asking price of $12,167 and a median of $12,128.
The price spread of $29,983 (98.2% 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.
464 diamonds tracked in this segment
Price range: $553 to $30,536
Average price: $12,167
Median price: $12,128
Available across 9 retailers
Savings potential: up to 98.2%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
464
$553
$12,167
$12,128
$30,536
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 52.7%1.75ct | Oval | D | SI2 | Very Good
From $7,660
Compare at $16,180
GIA1.75ct | Oval | J | VVS1 | Excellent
From $8,574
Compare at $9,310
GIA1.75ct | Oval | H | SI1 | Very Good
From $11,451
Compare at $11,813
GIASave 18.6%1.75ct | Oval | H | SI1 | Very Good
From $9,400
Compare at $11,553
GIASave 63.4%1.75ct | Oval | D | IF | Ideal
From $2,861
Compare at $7,808
GIA1.75ct | Oval | J | SI2 | Very Good
From $7,392
Compare at $7,536
GIA1.75ct | Oval | E | VVS1 | Excellent
From $20,240
Compare at $21,618
GIA1.75ct | Oval | G | VVS2 | Excellent
From $19,519
Compare at $20,003
GIASave 14.9%1.75ct | Oval | F | VVS2 | Excellent
From $17,510
Compare at $20,579
GIASave 14.3%1.75ct | Oval | H | SI2 | Ideal
From $7,448
Compare at $8,690
GIA1.75ct | Oval | H | VS2 | Ideal
From $13,507
Compare at $13,746
GIA1.75ct | Oval | I | VS2 | Good
From $10,629
Compare at $10,698
IGISave 23.6%1.75ct | Oval | D | VVS2 | Very Good
From $700
Compare at $916
IGISave 19.1%1.75ct | Oval | E | VVS2 | Very Good
From $709
Compare at $877
GIASave 54.9%1.75ct | Oval | E | VVS1 | Ideal
From $15,022
Compare at $33,303
GIA1.75ct | Oval | E | VVS2 | Excellent
From $18,956
Compare at $20,906
GIASave 57.8%1.75ct | Oval | D | VVS1 | Ideal
From $1,107
Compare at $2,627
1.75ct | Oval | E | SI2 | Excellent
From $14,538
Compare at $19,081
GIASave 63.2%1.75ct | Oval | D | IF | Ideal
From $2,731
Compare at $7,417
GIA1.76ct | Oval | F | VS1 | Excellent
From $18,610
Compare at $19,678
GIASave 15%1.76ct | Oval | E | SI1 | Excellent
From $11,910
Compare at $14,009
GIA1.76ct | Oval | D | VVS1 | Excellent
From $23,188
Compare at $23,849
GIASave 54.1%1.76ct | Oval | K | IF | Ideal
From $7,560
Compare at $16,461
GIASave 22.4%1.76ct | Oval | D | SI2 | Very Good
From $8,475
Compare at $10,923
GIASave 21.9%1.76ct | Oval | F | SI1 | Very Good
From $11,090
Compare at $14,200
GIASave 11.7%1.76ct | Oval | K | SI2 | Excellent
From $5,523
Compare at $6,257
GIASave 23.4%1.76ct | Oval | J | SI2 | Very Good
From $6,855
Compare at $8,954
GIA1.76ct | Oval | F | SI2 | Ideal
From $7,870
Compare at $8,576
GIA1.76ct | Oval | F | VS1 | Excellent
From $18,203
Compare at $18,268
GIASave 62.1%1.76ct | Oval | D | VVS2 | Ideal
From $1,104
Compare at $2,910
IGI1.76ct | Oval | I | SI1 | Very Good
From $4,944
Compare at $5,100
GIASave 57.9%1.76ct | Oval | D | VVS1 | Ideal
From $1,113
Compare at $2,642
GIASave 17.9%1.76ct | Oval | D | VVS2 | Excellent
From $17,963
Compare at $21,870
IGISave 81.4%1.76ct | Oval | D | VVS2 | Very Good
From $688
Compare at $3,705
IGISave 83.5%1.76ct | Oval | D | VVS1 | Very Good
From $725
Compare at $4,410
GIASave 20.6%1.76ct | Oval | D | SI1 | Excellent
From $11,393
Compare at $14,342
GIASave 63.4%1.76ct | Oval | D | IF | Ideal
From $2,876
Compare at $7,852
GIASave 41.5%1.76ct | Oval | E | VVS1 | Ideal
From $3,190
Compare at $5,450
GIASave 57.6%1.77ct | Oval | D | VVS1 | Ideal
From $1,076
Compare at $2,536
GIA1.77ct | Oval | E | SI1 | Excellent
From $9,770
Compare at $10,825
GIASave 10.6%1.77ct | Oval | F | VVS2 | Very Good
From $18,369
Compare at $20,554
GIASave 56.8%1.77ct | Oval | D | VVS1 | Ideal
From $1,148
Compare at $2,657
GIA1.77ct | Oval | D | VVS1 | Excellent
From $23,090
Compare at $25,610
GIASave 17.7%1.77ct | Oval | I | VVS2 | Very Good
From $10,538
Compare at $12,800
GIASave 30.7%1.77ct | Oval | D | VS1 | Excellent
From $1,277
Compare at $1,843
GIASave 22.7%1.77ct | Oval | J | VVS1 | Excellent
From $8,940
Compare at $11,560
GIASave 36.6%1.77ct | Oval | I | VS2 | Excellent
From $10,650
Compare at $16,792
IGISave 56.9%1.77ct | Oval | I | SI1 | Ideal
From $2,217
Compare at $5,149
GIASave 57.9%1.77ct | Oval | D | VVS1 | Ideal
From $1,118
Compare at $2,657
IGISave 12.6%1.77ct | Oval | D | VVS2 | Very Good
From $735
Compare at $842
Entry pricing in this category starts around $553.
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 $29,983 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 $12,128 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 464 comparable stones in this segment. Prices start around $553 and go up to $30,536.
Based on the latest market data, the average asking price is about $12,167 with a median around $12,128.
The observed spread is roughly $29,983 across tracked listings, which is about 98.2% 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 $12,128, 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 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 $29,983 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.