3.5 Carat Natural Diamond Prices Comparison
As of May 2026, the average price of a 3.5 carat natural diamond is $51,417.3.5 carat diamonds can cost anywhere from $1,180 to $167,851 depending on shape, color, clarity, and other factors.In the last month, prices for these diamonds are up 0.4%.Compare 881 verified listings across 10 retailers in the tables below.
3.5 Carat Natural Diamond Market Overview
CaratRadar currently tracks 881 verified 3.5-carat natural diamonds listed across 10 online retailers. Prices in this segment range from $1,180 to $167,851, with an average asking price of $51,417 and a median of $48,859.
The price spread of $166,671 (99.3% 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.
881 diamonds tracked in this segment
Price range: $1,180 to $167,851
Average price: $51,417
Median price: $48,859
Available across 10 retailers
Savings potential: up to 99.3%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
881
$1,180
$51,417
$48,859
$167,851
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.
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
Save 15.2%IGI | 3.5ct | Emerald | K | VVS2 | Ideal
From $12,665
Compare at $14,927
IGI | 3.55ct | Princess | J | VS2 | Very Good
From $15,155
Compare at $16,822
Save 11.9%IGI | 3.5ct | Round | J | SI1 | Excellent
From $15,430
Compare at $17,510
Save 15.1%IGI | 3.5ct | Round | K | SI1 | Excellent
From $16,880
Compare at $19,892
Save 34.2%GIA | 3.5ct | Oval | K | SI2 | Ideal
From $16,969
Compare at $25,785
GIA | 3.5ct | Round | L | SI1 | Excellent
From $17,452
Compare at $18,697
GIA | 3.51ct | Round | L | SI2 | Excellent
From $18,452
Compare at $20,022
GIA | 3.5ct | Pear | K | SI2 | Ideal
From $19,225
Compare at $20,294
IGI | 3.5ct | Round | J | SI1 | Ideal
From $19,340
Compare at $20,121
Save 15%GIA | 3.51ct | Round | L | SI1 | Ideal
From $19,546
Compare at $22,985
GIA | 3.5ct | Round | K | SI2 | Excellent
From $19,649
Compare at $21,537
Save 37.9%GIA | 3.51ct | Cushion | J | SI2 | Ideal
From $19,782
Compare at $31,841
Save 26.1%GIA | 3.51ct | Round | L | SI1 | Excellent
From $20,116
Compare at $27,206
GIA | 3.5ct | Round | J | SI2 | Very Good
From $20,388
Compare at $22,291
Save 38.9%GIA | 3.5ct | Round | L | SI1 | Excellent
From $20,502
Compare at $33,548
Save 22.9%GIA | 3.51ct | Round | K | SI1 | Excellent
From $20,791
Compare at $26,980
GIA | 3.53ct | Round | L | SI1 | Ideal
From $20,900
Compare at $21,221
GIA | 3.5ct | Radiant | K | VS2 | Very Good
From $21,101
Compare at $22,160
Save 36.1%GIA | 3.51ct | Pear | K | SI2 | Excellent
From $21,140
Compare at $33,094
Save 10.1%IGI | 3.51ct | Round | J | VVS1 | Excellent
From $21,205
Compare at $23,596
Save 36.8%GIA | 3.51ct | Round | L | SI1 | Excellent
From $21,405
Compare at $33,881
IGI | 3.53ct | Round | I | VS1 | Ideal
From $21,980
Compare at $22,893
GIA | 3.51ct | Cushion | K | VS1 | Excellent
From $22,092
Compare at $23,221
Save 34.9%GIA | 3.51ct | Round | J | SI2 | Ideal
From $22,240
Compare at $34,164
Save 32.6%GIA | 3.5ct | Oval | K | SI1 | Very Good
From $22,430
Compare at $33,265
Save 25.8%GIA | 3.51ct | Round | L | SI1 | Excellent
From $22,548
Compare at $30,372
Save 11.2%GIA | 3.53ct | Round | K | SI2 | Excellent
From $22,787
Compare at $25,674
Save 19.7%GIA | 3.5ct | Round | L | SI2 | Excellent
From $22,813
Compare at $28,421
GIA | 3.5ct | Round | J | SI2 | Very Good
From $22,825
Compare at $24,218
IGI | 3.52ct | Pear | J | IF | Ideal
From $22,845
Compare at $24,794
Save 22.7%GIA | 3.5ct | Round | L | SI1 | Excellent
From $23,056
Compare at $29,834
Save 29.7%GIA | 3.51ct | Oval | K | SI1 | Ideal
From $23,098
Compare at $32,835
GIA | 3.51ct | Round | J | SI1 | Ideal
From $23,199
Compare at $25,410
GIA | 3.59ct | Cushion | J | SI2 | Good
From $23,201
Compare at $23,387
GIA | 3.5ct | Round | L | SI1 | Ideal
From $23,234
Compare at $23,950
GIA | 3.55ct | Round | L | VS2 | Excellent
From $23,328
Compare at $25,655
Save 37.5%GIA | 3.5ct | Oval | K | SI2 | Ideal
From $23,362
Compare at $37,363
Save 17.2%IGI | 3.5ct | Round | J | VS2 | Excellent
From $23,435
Compare at $28,305
Save 15.4%GIA | 3.6ct | Round | L | VS2 | Excellent
From $23,475
Compare at $27,743
IGI | 3.51ct | Round | I | VS2 | Ideal
From $23,605
Compare at $25,098
GIA | 3.5ct | Oval | K | SI1 | Very Good
From $23,731
Compare at $23,773
Save 16.1%GIA | 3.5ct | Round | L | VS2 | Excellent
From $23,838
Compare at $28,407
GIA | 3.5ct | Princess | H | SI2 | Excellent
From $23,891
Compare at $24,837
Save 32.1%GIA | 3.5ct | Round | K | VS2 | Excellent
From $23,909
Compare at $35,235
Save 11.5%GIA | 3.51ct | Radiant | K | SI1 | Ideal
From $23,957
Compare at $27,071
GIA | 3.51ct | Round | K | SI2 | Excellent
From $24,205
Compare at $25,679
GIA | 3.54ct | Round | L | VS2 | Excellent
From $24,206
Compare at $25,167
GIA | 3.52ct | Round | K | IF | Excellent
From $24,313
Compare at $26,855
Save 16.3%IGI | 3.5ct | Emerald | I | VS2 | Very Good
From $24,390
Compare at $29,149
Save 34.5%GIA | 3.51ct | Princess | J | VS2 | Very Good
From $24,463
Compare at $37,359
Entry pricing in this category starts around $1,180.
What to Know When Shopping for 3.5 Carat Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $166,671 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 $48,859 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 881 comparable stones in this segment. Prices start around $1,180 and go up to $167,851.
Based on the latest market data, the average asking price is about $51,417 with a median around $48,859.
The observed spread is roughly $166,671 across tracked listings, which is about 99.3% 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 $51,417. The median price is $48,859, 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 10 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 $166,671 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.
Related Price Categories
Explore adjacent carat ranges and shapes to compare market shifts.
3.5 Carat Round Natural Diamond Prices
3.5 Carat Oval Natural Diamond Prices
3.5 Carat Emerald Natural Diamond Prices
3.5 Carat Cushion Natural Diamond Prices
3.5 Carat Radiant Natural Diamond Prices
3.5 Carat Pear Natural Diamond Prices
3.5 Carat Princess Natural Diamond Prices
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3.5 Carat Marquise Natural Diamond Prices
3.5 Carat Heart Natural Diamond Prices
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