1.9 Carat Round Natural Diamond Prices Comparison
As of May 2026, 1.9 carat round natural diamonds usually range from $978 to $38,904, with an average price of $14,478.In the last month, prices for these diamonds are up 1%.Compare 570 verified listings across 9 retailers tracked by CaratRadar.
1.9 Carat Round Natural Diamond Market Overview
CaratRadar currently tracks 570 verified 1.9-carat round natural diamonds listed across 9 online retailers. Prices in this segment range from $978 to $38,904, with an average asking price of $14,478 and a median of $13,352.
The price spread of $37,926 (97.5% 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.
570 diamonds tracked in this segment
Price range: $978 to $38,904
Average price: $14,478
Median price: $13,352
Available across 9 retailers
Savings potential: up to 97.5%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
570
$978
$14,478
$13,352
$38,904
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 16.9%IGI | 1.91ct | Round | J | SI2 | Ideal
From $3,622
Compare at $4,360
Save 18.5%IGI | 1.9ct | Round | J | SI2 | Ideal
From $3,706
Compare at $4,550
Save 23.9%GIA | 1.9ct | Round | L | SI2 | Excellent
From $3,887
Compare at $5,105
Save 17.9%IGI | 1.9ct | Round | J | SI1 | Ideal
From $4,010
Compare at $4,883
Save 18.2%IGI | 1.92ct | Round | K | SI1 | Excellent
From $4,160
Compare at $5,085
Save 18.1%IGI | 1.99ct | Round | K | SI1 | Excellent
From $4,315
Compare at $5,269
Save 22.6%GIA | 1.92ct | Round | K | SI1 | Excellent
From $4,591
Compare at $5,930
Save 18.4%IGI | 1.91ct | Round | K | VS2 | Excellent
From $4,610
Compare at $5,652
Save 16.9%IGI | 1.9ct | Round | K | VS1 | Excellent
From $4,680
Compare at $5,633
Save 36.1%GIA | 1.9ct | Round | K | SI2 | Excellent
From $4,943
Compare at $7,737
Save 26.5%GIA | 1.93ct | Round | L | SI1 | Excellent
From $4,974
Compare at $6,766
Save 16.8%IGI | 1.9ct | Round | J | SI1 | Very Good
From $5,130
Compare at $6,169
GIA | 1.9ct | Round | L | VS2 | Very Good
From $5,282
Compare at $5,562
Save 15.8%IGI | 1.93ct | Round | K | VS1 | Excellent
From $5,405
Compare at $6,418
Save 23%GIA | 1.9ct | Round | K | SI1 | Excellent
From $5,579
Compare at $7,241
Save 36.2%GIA | 1.9ct | Round | L | SI1 | Excellent
From $5,637
Compare at $8,832
Save 27.6%GIA | 1.9ct | Round | K | SI1 | Excellent
From $5,718
Compare at $7,893
Save 25.4%GIA | 1.9ct | Round | L | VS2 | Excellent
From $5,731
Compare at $7,685
Save 25.4%GIA | 1.91ct | Round | L | VS2 | Ideal
From $5,762
Compare at $7,725
Save 38.1%GIA | 1.91ct | Round | J | SI2 | Good
From $5,794
Compare at $9,360
Save 27.5%GIA | 1.9ct | Round | J | SI2 | Ideal
From $5,827
Compare at $8,042
Save 13.8%IGI | 1.9ct | Round | K | VVS1 | Excellent
From $5,865
Compare at $6,806
Save 10.2%IGI | 1.9ct | Round | J | SI1 | Excellent
From $5,920
Compare at $6,595
Save 10.3%IGI | 1.9ct | Round | J | VS1 | Excellent
From $6,005
Compare at $6,693
Save 15.6%IGI | 1.94ct | Round | J | SI1 | Excellent
From $6,035
Compare at $7,151
Save 21.6%GIA | 1.9ct | Round | K | VS2 | Ideal
From $6,045
Compare at $7,707
Save 15.7%IGI | 1.9ct | Round | I | SI1 | Excellent
From $6,065
Compare at $7,198
IGI | 1.9ct | Round | J | SI1 | Excellent
From $6,080
Compare at $6,527
Save 16.2%IGI | 1.9ct | Round | J | VS2 | Excellent
From $6,130
Compare at $7,313
Save 28.7%GIA | 1.91ct | Round | K | SI2 | Excellent
From $6,274
Compare at $8,800
Save 14.5%IGI | 1.9ct | Round | K | SI1 | Excellent
From $6,302
Compare at $7,372
Save 31.1%GIA | 1.9ct | Round | J | SI2 | Ideal
From $6,305
Compare at $9,147
Save 15.3%IGI | 1.91ct | Round | J | VVS1 | Excellent
From $6,370
Compare at $7,521
Save 14.1%IGI | 1.93ct | Round | J | VS2 | Excellent
From $6,385
Compare at $7,429
Save 14.1%IGI | 1.9ct | Round | J | VS2 | Excellent
From $6,395
Compare at $7,442
Save 20.3%GIA | 1.92ct | Round | K | VS2 | Excellent
From $6,440
Compare at $8,080
Save 24.3%GIA | 1.9ct | Round | K | SI2 | Excellent
From $6,464
Compare at $8,542
Save 21.6%GIA | 1.9ct | Round | K | VS2 | Excellent
From $6,479
Compare at $8,261
Save 15%GIA | 1.92ct | Round | J | SI1 | Very Good
From $6,570
Compare at $7,726
Save 15.6%GIA | 1.9ct | Round | K | SI1 | Excellent
From $6,655
Compare at $7,884
Save 14%IGI | 1.99ct | Round | J | VS2 | Excellent
From $6,700
Compare at $7,792
Save 14%IGI | 1.99ct | Round | J | VS2 | Excellent
From $6,700
Compare at $7,792
Save 39%GIA | 1.9ct | Round | K | VS2 | Excellent
From $6,748
Compare at $11,059
Save 39.1%GIA | 1.9ct | Round | J | SI1 | Excellent
From $6,751
Compare at $11,094
GIA | 1.9ct | Round | K | SI1 | Ideal
From $6,760
Compare at $7,277
Save 14.8%IGI | 1.9ct | Round | J | VVS1 | Excellent
From $6,775
Compare at $7,953
Save 36.4%GIA | 1.91ct | Round | L | VS1 | Excellent
From $6,837
Compare at $10,754
Save 27.5%GIA | 1.92ct | Round | K | VS1 | Excellent
From $6,920
Compare at $9,549
Save 18.1%GIA | 1.9ct | Round | J | SI2 | Excellent
From $6,975
Compare at $8,512
Save 36.4%GIA | 1.99ct | Round | L | VS2 | Very Good
From $7,023
Compare at $11,048
Entry pricing in this category starts around $978.
What to Know When Shopping for 1.9 Carat Round Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $37,926 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 $13,352 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.
- Round brilliants command a premium due to higher rough waste during cutting. If budget matters, consider oval or cushion shapes for similar visual size.
Frequently Asked Questions
We currently track 570 comparable stones in this segment. Prices start around $978 and go up to $38,904.
Based on the latest market data, the average asking price is about $14,478 with a median around $13,352.
The observed spread is roughly $37,926 across tracked listings, which is about 97.5% 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 $14,478. The median price is $13,352, 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 $37,926 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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