1.8 Carat Natural Diamond Prices Comparison
As of April 2026, the average price of a 1.8 carat natural diamond is $12,491.1.8 carat diamonds can cost anywhere from $552 to $38,969 depending on shape, color, clarity, and other factors.In the last month, prices for these diamonds are down 0.7%.Compare 956 verified listings across 8 retailers in the tables below.
1.8 Carat Natural Diamond Market Overview
CaratRadar currently tracks 956 verified 1.8-carat natural diamonds listed across 8 online retailers. Prices in this segment range from $552 to $38,969, with an average asking price of $12,491 and a median of $11,916.
The price spread of $38,417 (98.6% 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.
956 diamonds tracked in this segment
Price range: $552 to $38,969
Average price: $12,491
Median price: $11,916
Available across 8 retailers
Savings potential: up to 98.6%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
956
$552
$12,491
$11,916
$38,969
Price History
Price Comparison Matrix
1.8 Carat Natural Diamond Prices by Shape
Shape-level averages for this carat and type. Open each shape page for full market detail.
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
Save 33.6%GIA | 1.81ct | Asscher | L | VVS1 | Ideal
From $2,680
Compare at $4,039
Save 12.1%GIA | 1.81ct | Asscher | J | VVS1 | Very Good
From $5,646
Compare at $6,420
GIA | 1.81ct | Asscher | J | VVS1 | Ideal
From $6,330
Compare at $6,732
GIA | 1.81ct | Asscher | F | SI1 | Excellent
From $10,643
Compare at $11,893
GIA | 1.81ct | Asscher | I | VS1 | Excellent
From $10,683
Compare at $11,938
Save 34.2%GIA | 1.81ct | Asscher | K | VS2 | Ideal
From $3,132
Compare at $4,761
Save 22.3%GIA | 1.81ct | Asscher | H | VVS1 | Excellent
From $8,730
Compare at $11,229
GIA | 1.81ct | Asscher | I | VVS2 | Ideal
From $7,372
Compare at $7,638
Save 23.4%GIA | 1.81ct | Asscher | I | VS2 | Very Good
From $5,686
Compare at $7,423
GIA | 1.81ct | Asscher | H | VS2 | Excellent
From $7,104
Compare at $7,671
Save 22.4%GIA | 1.81ct | Asscher | G | SI1 | Excellent
From $6,399
Compare at $8,247
Save 25.2%GIA | 1.81ct | Asscher | I | VS2 | Excellent
From $6,529
Compare at $8,725
Save 22.4%GIA | 1.81ct | Asscher | I | VS1 | Excellent
From $6,179
Compare at $7,958
Save 21.2%GIA | 1.81ct | Asscher | H | VS2 | Good
From $7,733
Compare at $9,813
GIA | 1.81ct | Asscher | H | VS1 | Ideal
From $8,266
Compare at $8,674
GIA | 1.81ct | Asscher | G | VS1 | Excellent
From $17,267
Compare at $18,602
GIA | 1.81ct | Asscher | I | VVS2 | Ideal
From $7,547
Compare at $7,550
GIA | 1.81ct | Asscher | F | VS1 | Excellent
From $11,540
Compare at $12,365
HRD | 1.81ct | Asscher | I | VVS2 | Ideal
From $5,110
Compare at $5,366
Save 21.3%IGI | 1.81ct | Asscher | I | SI1 | Very Good
From $2,942
Compare at $3,736
GIA | 1.82ct | Asscher | I | SI1 | Excellent
From $7,790
Compare at $7,791
Save 25.7%GIA | 1.82ct | Asscher | J | SI1 | Excellent
From $4,155
Compare at $5,591
GIA | 1.82ct | Asscher | G | VVS2 | Ideal
From $10,430
Save 21.5%GIA | 1.83ct | Asscher | J | SI1 | Excellent
From $8,206
Compare at $10,456
Save 16.1%GIA | 1.84ct | Asscher | H | VS1 | Very Good
From $8,976
Compare at $10,704
GIA | 1.84ct | Asscher | J | SI1 | Ideal
From $5,400
Compare at $5,700
Save 16.1%GIA | 1.84ct | Asscher | H | VVS2 | Ideal
From $9,642
Compare at $11,492
GIA | 1.85ct | Asscher | F | VS1 | Excellent
From $17,412
Compare at $20,004
Save 36.7%GIA | 1.86ct | Asscher | J | IF | Excellent
From $4,249
Compare at $6,710
GIA | 1.88ct | Asscher | G | VVS2 | Excellent
From $16,056
Compare at $18,222
Save 14.6%GIA | 1.81ct | Cushion | I | VVS2 | Good
From $8,051
Compare at $9,426
Save 21.6%GIA | 1.81ct | Cushion | G | SI1 | Excellent
From $9,650
Compare at $12,308
Save 22.4%GIA | 1.81ct | Cushion | G | SI1 | Excellent
From $9,127
Compare at $11,754
Save 21.5%GIA | 1.81ct | Cushion | J | VS2 | Excellent
From $8,242
Compare at $10,503
Save 24%GIA | 1.81ct | Cushion | H | VS2 | Ideal
From $6,650
Compare at $8,745
Save 13.3%GIA | 1.81ct | Cushion | F | VS1 | Excellent
From $14,391
Compare at $16,589
GIA | 1.81ct | Cushion | D | VVS2 | Excellent
From $11,498
Compare at $12,316
Save 22.7%GIA | 1.81ct | Cushion | G | VS2 | Ideal
From $8,364
Compare at $10,818
Save 32%GIA | 1.81ct | Cushion | K | VS1 | Excellent
From $4,762
Compare at $7,003
Save 15%GIA | 1.81ct | Cushion | I | VS2 | Good
From $7,314
Compare at $8,609
Save 35.4%GIA | 1.81ct | Cushion | J | IF | Ideal
From $4,978
Compare at $7,706
Save 25.3%GIA | 1.81ct | Cushion | I | VS2 | Excellent
From $7,458
Compare at $9,979
GIA | 1.81ct | Cushion | K | VS2 | Excellent
From $7,503
Compare at $7,886
Save 21%GIA | 1.81ct | Cushion | F | VS2 | Excellent
From $12,895
Compare at $16,328
GIA | 1.81ct | Cushion | F | VS1 | Ideal
From $11,963
Compare at $11,965
Save 17.5%GIA | 1.81ct | Cushion | I | VS1 | Excellent
From $7,678
Compare at $9,303
Save 22.3%GIA | 1.81ct | Cushion | J | VVS1 | Ideal
From $8,989
Compare at $11,574
Save 12.1%GIA | 1.81ct | Cushion | J | VVS1 | Ideal
From $6,738
Compare at $7,662
Save 13.6%GIA | 1.81ct | Cushion | D | VS2 | Excellent
From $12,020
Compare at $13,907
Save 33.6%GIA | 1.81ct | Cushion | L | VS1 | Ideal
From $2,629
Compare at $3,962
Entry pricing in this category starts around $552.
What to Know When Shopping for 1.8 Carat Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $38,417 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 $11,916 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.
- 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.
Frequently Asked Questions
We currently track 956 comparable stones in this segment. Prices start around $552 and go up to $38,969.
Based on the latest market data, the average asking price is about $12,491 with a median around $11,916.
The observed spread is roughly $38,417 across tracked listings, which is about 98.6% 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 $11,916, 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 8 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 $38,417 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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