3.5 Carat Natural Diamond Prices Comparison
A 3.5 carat natural diamond of any shape typically costs $48,510 (median of 2,024 listings at 11 online stores). Average prices fell 0.8% over the last month. Updated .
Average $51,384. Listings run from $1,180 to $2,818,346 in the 3.50–3.99 carat range.
See the live listings3.5 Carat Natural Diamond Market Overview
CaratRadar currently tracks 2,024 verified 3.5-carat natural diamonds in the 3.50–3.99 carat benchmark range, listed across 11 online retailers. Prices in this segment range from $1,180 to $2,818,346, with an average asking price of $51,384 and a median of $48,510.
Across this category, asking prices span $2,817,166 (100.0% from the most expensive to the cheapest listing). The same certified diamond can also be listed at different prices by different retailers, which is why CaratRadar compares stones by certificate number.
These figures use the same benchmark range throughout the page and 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.
2,024 diamonds tracked in the 3.50–3.99 carat benchmark
Price range: $1,180 to $2,818,346
Average price: $51,384
Median price: $48,510
Available across 11 retailers
Category price spread: 100.0%
Price Range Overview
As of Oct 23, 2026Real market range for this carat, shape, and diamond type.
2,024
$1,180
$51,384
$48,510
$2,818,346
Price History
Price Comparison Matrix
3.5 Carat Natural Diamond Prices by Shape
Shape-level averages for this carat and type. Open each shape page for full market detail.
Compare nearby
Prices for the next carat weights, other shapes and the lab grown twin.
Nearby carat weights
Same size, lab grown
Live Listings
See all listingsCompare current retailer offers in the same benchmark range and open any listing for full details.
Save 20%GIA | 3.55ct | Pear | FANCY | VVS2 | Excellent
From $4,905
Compare at $6,132
Save 20%GIA | 3.58ct | Heart | FANCY | VVS2 | Excellent
From $4,947
Compare at $6,183
Save 20%GIA | 3.51ct | Pear | FANCY | VVS2 | Excellent
From $5,354
Compare at $6,693
Save 20%GIA | 3.55ct | Oval | FANCY | VVS2 | Excellent
From $5,415
Compare at $6,768
Save 20%GIA | 3.97ct | Emerald | FANCY | VVS2 | Excellent
From $5,483
Compare at $6,854
Save 25.3%IGI | 3.5ct | Pear | K | SI2 | Very Good
From $7,940
Compare at $10,623
Save 41%IGI | 3.51ct | Oval | K | SI2 | Ideal
From $8,663
Compare at $14,695
IGI | 3.51ct | Oval | G | I1 | Ideal
From $10,319
Compare at $10,716
HRD | 3.51ct | Heart | K | SI2 | Good
From $11,020
Compare at $11,877
Save 17.5%IGI | 3.5ct | Oval | I | SI2 | Ideal
From $11,239
Compare at $13,627
Save 40.8%GIA | 3.51ct | Cushion | L | VS1 | Excellent
From $11,333
Compare at $19,154
Save 13.7%IGI | 3.51ct | Pear | K | SI2 | Ideal
From $11,457
Compare at $13,283
Save 17.5%IGI | 3.5ct | Round | K | SI2 | Excellent
From $11,765
Compare at $14,265
Save 17.5%HRD | 3.5ct | Oval | K | SI2 | Ideal
From $11,787
Compare at $14,292
Save 12.1%IGI | 3.51ct | Oval | J | SI2 | Ideal
From $12,623
Compare at $14,360
Save 18.3%HRD | 3.5ct | Pear | J | SI2 | Ideal
From $12,940
Compare at $15,841
IGI | 3.52ct | Oval | E | SI2 | Excellent
From $12,944
Compare at $13,337
Save 15.1%IGI | 3.52ct | Princess | K | VS1 | Very Good
From $13,080
Compare at $15,402
Save 18.9%GIA | 3.5ct | Oval | L | SI2 | Very Good
From $13,119
Compare at $16,167
HRD | 3.51ct | Pear | J | SI2 | Ideal
From $13,120
Compare at $14,049
IGI | 3.51ct | Emerald | J | VS2 | Ideal
From $13,480
Compare at $14,670
Save 18.3%IGI | 3.82ct | Round | K | SI2 | Good
From $14,097
Compare at $17,251
IGI | 3.51ct | Pear | J | SI2 | Ideal
From $14,125
Compare at $14,559
Save 13.1%IGI | 3.53ct | Pear | K | SI2 | Very Good
From $14,313
Compare at $16,464
Save 18.3%IGI | 3.55ct | Round | L | SI2 | Excellent
From $14,393
Compare at $17,613
IGI | 3.51ct | Emerald | K | VS1 | Very Good
From $14,569
Compare at $15,560
Save 18.5%HRD | 3.5ct | Pear | J | SI2 | Ideal
From $14,770
Compare at $18,127
Save 15.3%GIA | 3.51ct | Oval | L | SI2 | Very Good
From $15,046
Compare at $17,762
Save 23.6%GIA | 3.52ct | Pear | E | SI2 | Excellent
From $15,093
Compare at $19,747
IGI | 3.5ct | Pear | J | SI2 | Ideal
From $15,260
Compare at $16,343
IGI | 3.5ct | Oval | E | SI2 | Ideal
From $15,328
Compare at $15,798
Save 13.9%HRD | 3.7ct | Round | K | SI2 | Ideal
From $15,491
Compare at $18,002
Save 12.2%IGI | 3.73ct | Round | K | SI1 | Excellent
From $15,571
Compare at $17,733
Save 16.3%GIA | 3.5ct | Pear | L | SI1 | Ideal
From $15,793
Compare at $18,862
Save 13.1%IGI | 3.81ct | Princess | K | VVS1 | Excellent
From $16,063
Compare at $18,494
Save 12.3%HRD | 3.53ct | Oval | J | SI2 | Ideal
From $16,080
Compare at $18,345
IGI | 3.52ct | Round | H | SI2 | Ideal
From $16,101
Compare at $16,595
Save 18.3%GIA | 3.81ct | Oval | M | SI2 | Ideal
From $16,189
Compare at $19,811
IGI | 3.5ct | Oval | I | SI2 | Ideal
From $16,217
Compare at $16,967
Save 25.5%GIA | 3.51ct | Pear | L | SI2 | Ideal
From $16,220
Compare at $21,770
Save 18.3%IGI | 3.51ct | Emerald | J | SI1 | Ideal
From $16,276
Compare at $19,917
Save 41.3%GIA | 3.6ct | Round | L | VS2 | Excellent
From $16,329
Compare at $27,811
Save 18.3%GIA | 3.51ct | Pear | L | SI2 | Very Good
From $16,525
Compare at $20,223
IGI | 3.5ct | Heart | G | SI2 | Ideal
From $16,620
Compare at $17,580
Save 10.6%GIA | 3.5ct | Pear | K | SI2 | Ideal
From $16,708
Compare at $18,698
Save 13.9%GIA | 3.5ct | Pear | K | SI2 | Very Good
From $16,893
Compare at $19,610
Save 18.3%IGI | 3.73ct | Pear | K | VVS2 | Ideal
From $16,985
Compare at $20,785
HRD | 3.82ct | Round | H | SI2 | Ideal
From $17,015
Compare at $17,538
GIA | 3.72ct | Asscher | L | VS2 | Excellent
From $17,242
Compare at $17,841
Save 12%IGI | 3.6ct | Emerald | K | VS1 | Ideal
From $17,305
Compare at $19,654
Entry pricing in this benchmark range starts around $1,180.
What to Know When Shopping for 3.5 Carat Natural Diamonds
- Always compare identical certified diamonds across retailers, because the same certificate can be listed at different prices by different stores. Across this whole category, asking prices span $2,817,166 from the cheapest to the most expensive listing.
- 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 $48,510 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 2,024 comparable stones in the 3.50–3.99 carat benchmark range. Prices start around $1,180 and go up to $2,818,346.
Based on the latest market data, the average asking price is about $51,384 with a median around $48,510.
The observed spread is roughly $2,817,166 across tracked listings, which is about 100.0% from highest to lowest offer in the 3.50–3.99 carat benchmark range.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $51,384. The median price is $48,510, 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 11 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. Across this category, asking prices span $2,817,166 from the cheapest to the most expensive listing, and the same certified diamond can also carry different prices at different 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.
Tools and Guides
Tracking Natural inventory for the 3.50–3.99 carat all-shape diamond benchmark.