3.5 Carat Round Natural Diamond Prices Comparison
As of February 2026, 3.5 carat round natural diamonds usually range from $763 to $152,190, with an average price of $35,453.In the last month, prices for these diamonds are down 1.7%.Compare 363 verified listings across 6 retailers tracked by CaratRadar.
3.5 Carat Round Natural Diamond Market Overview
CaratRadar currently tracks 363 verified 3.5-carat round natural diamonds listed across 6 online retailers. Prices in this segment range from $763 to $152,190, with an average asking price of $35,453 and a median of $34,545.
The price spread of $151,427 (99.5% 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.
363 diamonds tracked in this segment
Price range: $763 to $152,190
Average price: $35,453
Median price: $34,545
Available across 6 retailers
Savings potential: up to 99.5%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
363
$763
$35,453
$34,545
$152,190
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 63.3%3.46ct | Round | D | VVS1 | Excellent
From $3,011
Compare at $8,203
IGISave 67.2%3.46ct | Round | F | VS2 | Excellent
From $829
Compare at $2,525
IGISave 70.2%3.46ct | Round | E | VS1 | Excellent
From $855
Compare at $2,870
3.46ct | Round | K | VVS2 | Excellent
From $32,330
Compare at $40,029
GIA3.46ct | Round | I | VVS1 | Excellent
From $83,326
Compare at $87,805
GIASave 36.1%3.47ct | Round | K | VS1 | Excellent
From $32,905
Compare at $51,475
GIASave 62.2%3.47ct | Round | D | VVS2 | Excellent
From $2,515
Compare at $6,656
3.47ct | Round | E | VVS1 | Excellent
From $143,234
Compare at $159,579
3.47ct | Round | D | SI1 | Excellent
From $63,924
Compare at $77,165
GIASave 36.7%3.47ct | Round | J | SI1 | Ideal
From $38,129
Compare at $60,236
GIASave 63.3%3.47ct | Round | D | VVS1 | Excellent
From $3,019
Compare at $8,226
IGISave 67.9%3.48ct | Round | F | VS1 | Excellent
From $848
Compare at $2,640
GIA3.48ct | Round | J | SI1 | Very Good
From $47,781
Compare at $50,173
GIA3.49ct | Round | H | VVS1 | Excellent
From $102,482
Compare at $107,879
IGISave 63.4%3.49ct | Round | E | VVS2 | Ideal
From $1,738
Compare at $4,744
3.49ct | Round | E | VVS1 | Excellent
From $121,609
Compare at $146,021
GIASave 13.9%3.49ct | Round | E | VS2 | Very Good
From $65,942
Compare at $76,553
GIASave 25.1%3.5ct | Round | L | SI1 | Excellent
From $22,339
Compare at $29,835
GIA3.5ct | Round | K | SI1 | Excellent
From $28,221
Compare at $28,224
GIASave 20.7%3.5ct | Round | F | VS1 | Excellent
From $74,910
Compare at $94,474
GIA3.5ct | Round | H | SI1 | Excellent
From $50,560
Compare at $53,513
3.5ct | Round | J | SI2 | Excellent
From $37,106
Compare at $43,301
GIASave 36.5%3.5ct | Round | G | SI1 | Excellent
From $57,484
Compare at $90,530
GIASave 13.8%3.5ct | Round | F | VS1 | Excellent
From $81,929
Compare at $95,096
GIASave 63.6%3.5ct | Round | D | VVS1 | Excellent
From $3,175
Compare at $8,735
GIASave 27%3.5ct | Round | G | SI1 | Excellent
From $53,842
Compare at $73,710
IGISave 81.5%3.5ct | Round | D | VVS1 | Excellent
From $2,349
Compare at $12,690
3.5ct | Round | I | SI1 | Excellent
From $46,685
Compare at $54,911
GIASave 57.5%3.5ct | Round | K | SI1 | Ideal
From $24,881
Compare at $58,488
GIASave 58.9%3.5ct | Round | H | VS1 | Excellent
From $41,170
Compare at $100,065
GIASave 13.8%3.5ct | Round | E | VS1 | Excellent
From $82,432
Compare at $95,680
GIASave 59.4%3.5ct | Round | D | FL | Ideal
From $141,104
Compare at $347,328
GIASave 58%3.5ct | Round | H | SI1 | Ideal
From $49,398
Compare at $117,655
GIASave 57.5%3.5ct | Round | K | SI1 | Ideal
From $25,358
Compare at $59,611
GIASave 15.7%3.5ct | Round | F | VVS2 | Excellent
From $86,079
Compare at $102,169
GIASave 25%3.5ct | Round | I | SI1 | Excellent
From $37,200
Compare at $49,620
GIASave 34.8%3.5ct | Round | D | SI1 | Excellent
From $40,171
Compare at $61,589
GIASave 12.1%3.5ct | Round | L | SI2 | Ideal
From $19,656
Compare at $22,351
GIASave 63.3%3.5ct | Round | D | VVS1 | Excellent
From $3,205
Compare at $8,735
GIA3.5ct | Round | G | VS1 | Ideal
From $61,850
Compare at $66,921
GIASave 63.6%3.5ct | Round | D | VVS1 | Excellent
From $3,175
Compare at $8,735
GIA3.5ct | Round | F | VS1 | Excellent
From $103,359
Compare at $108,798
GIASave 19.6%3.5ct | Round | K | VS2 | Excellent
From $27,407
Compare at $34,073
GIASave 13.8%3.5ct | Round | D | VVS2 | Excellent
From $102,315
Compare at $118,742
GIASave 57.5%3.5ct | Round | J | VVS2 | Excellent
From $32,728
Compare at $76,986
3.5ct | Round | K | SI2 | Excellent
From $31,574
Compare at $36,262
GIA3.5ct | Round | L | SI1 | Excellent
From $19,853
Compare at $20,599
GIASave 17.5%3.5ct | Round | L | SI1 | Excellent
From $22,997
Compare at $27,878
3.5ct | Round | L | VS2 | Excellent
From $23,707
Compare at $29,584
GIASave 10.5%3.5ct | Round | F | VS1 | Excellent
From $53,457
Compare at $59,746
Entry pricing in this category starts around $763.
What to Know When Shopping for 3.5 Carat Round Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $151,427 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 $34,545 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 363 comparable stones in this segment. Prices start around $763 and go up to $152,190.
Based on the latest market data, the average asking price is about $35,453 with a median around $34,545.
The observed spread is roughly $151,427 across tracked listings, which is about 99.5% 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 $34,545, 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 6 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 $151,427 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 3.5 carat Round diamonds.