6 Carat Round Natural Diamond Prices Comparison
As of October 2026, 6 carat round natural diamonds in the 6.00–6.99 carat benchmark range usually range from $3,230 to $568,055, with an average price of $149,850.In the last month, prices for these diamonds are up 0.8%.Compare 185 verified listings across 10 retailers tracked by CaratRadar.
6 Carat Round Natural Diamond Market Overview
CaratRadar currently tracks 185 verified 6-carat round natural diamonds in the 6.00–6.99 carat benchmark range, listed across 10 online retailers. Prices in this segment range from $3,230 to $568,055, with an average asking price of $149,850 and a median of $131,848.
The price spread of $564,825 (99.4% 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 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.
185 diamonds tracked in the 6.00–6.99 carat benchmark
Price range: $3,230 to $568,055
Average price: $149,850
Median price: $131,848
Available across 10 retailers
Savings potential: up to 99.4%
Price Range Overview
As of Oct 14, 2026Real market range for this carat, shape, and diamond type.
185
$3,230
$149,850
$131,848
$568,055
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers in the same benchmark range and open any listing for full details.
Save 12.6%IGI | 6.02ct | Round | L | SI2 | Excellent
From $29,398
Compare at $33,622
Save 16.1%IGI | 6.03ct | Round | K | SI1 | Excellent
From $34,710
Compare at $41,366
Save 19.4%IGI | 6.01ct | Round | L | VS1 | Ideal
From $41,331
Compare at $51,308
Save 13.9%IGI | 6.2ct | Round | K | SI1 | Excellent
From $47,275
Compare at $54,902
Save 19.4%IGI | 6.01ct | Round | J | SI1 | Excellent
From $53,675
Compare at $66,632
Save 22.1%IGI | 6.42ct | Round | K | VVS2 | Excellent
From $55,885
Compare at $71,762
GIA | 6.08ct | Round | J | I1 | Ideal
From $56,566
Compare at $58,577
Save 10.4%GIA | 6.02ct | Round | L | SI1 | Excellent
From $57,832
Compare at $64,519
GIA | 6.01ct | Round | L | SI1 | Excellent
From $60,236
Compare at $63,748
Save 21%GIA | 6.02ct | Round | L | SI2 | Good
From $60,465
Compare at $76,521
Save 21%GIA | 6.01ct | Round | L | SI1 | Excellent
From $60,666
Compare at $76,776
Save 21%GIA | 6.05ct | Round | L | SI2 | Excellent
From $63,298
Compare at $80,104
Save 26.8%GIA | 6.04ct | Round | K | SI2 | Excellent
From $68,006
Compare at $92,864
Save 19.2%GIA | 6.17ct | Round | K | SI1 | Excellent
From $69,024
Compare at $85,392
Save 24%GIA | 6.01ct | Round | J | SI2 | Excellent
From $69,104
Compare at $90,897
Save 16.8%GIA | 6.02ct | Round | K | SI1 | Excellent
From $69,266
Compare at $83,273
Save 36.3%GIA | 6.18ct | Round | K | SI1 | Excellent
From $71,819
Compare at $112,677
Save 14.2%GIA | 6.06ct | Round | I | SI2 | Excellent
From $71,830
Compare at $83,731
Save 21.4%GIA | 6.01ct | Round | J | VVS2 | Excellent
From $72,073
Compare at $91,660
Save 21%GIA | 6.05ct | Round | K | SI1 | Excellent
From $72,413
Compare at $91,629
Save 16%GIA | 6.4ct | Round | K | VS2 | Ideal
From $74,789
Compare at $89,027
IGI | 6.14ct | Round | J | VS1 | Excellent
From $74,855
Compare at $81,197
Save 21%GIA | 6.01ct | Round | K | SI2 | Excellent
From $75,456
Compare at $95,476
Save 21.8%GIA | 6.01ct | Round | K | SI1 | Excellent
From $75,507
Compare at $96,510
Save 16.1%GIA | 6ct | Round | I | SI2 | Excellent
From $76,004
Compare at $90,583
Save 12.4%GIA | 6.07ct | Round | K | VS2 | Excellent
From $76,061
Compare at $86,781
Save 16.1%GIA | 6.52ct | Round | I | SI2 | Ideal
From $76,894
Compare at $91,644
Save 19.4%IGI | 6.01ct | Round | I | VVS2 | Excellent
From $79,586
Compare at $98,798
Save 12.3%GIA | 6.02ct | Round | J | SI1 | Ideal
From $79,661
Compare at $90,885
Save 19.4%GIA | 6.59ct | Round | M | VVS2 | Ideal
From $80,170
Compare at $99,522
GIA | 6.07ct | Round | H | SI2 | Ideal
From $81,410
Compare at $90,052
Save 21.4%GIA | 6.02ct | Round | J | SI2 | Excellent
From $81,815
Compare at $104,045
Save 16.8%GIA | 6.02ct | Round | J | SI1 | Excellent
From $82,116
Compare at $98,714
Save 14.2%GIA | 6.01ct | Round | J | SI1 | Excellent
From $82,890
Compare at $96,580
Save 21%GIA | 6.42ct | Round | J | SI2 | Very Good
From $85,260
Compare at $107,873
Save 21%GIA | 6.01ct | Round | J | SI2 | Excellent
From $85,516
Compare at $108,197
Save 10.3%GIA | 6.18ct | Round | I | SI2 | Excellent
From $85,540
Compare at $95,340
Save 21.4%GIA | 6.51ct | Round | H | SI1 | Excellent
From $86,196
Compare at $109,614
Save 12.3%GIA | 6.01ct | Round | J | SI1 | Excellent
From $86,384
Compare at $98,550
Save 26%GIA | 6.41ct | Round | H | SI2 | Very Good
From $86,473
Compare at $116,822
Save 19.4%GIA | 6.07ct | Round | J | SI1 | Excellent
From $87,472
Compare at $108,588
Save 16.8%GIA | 6.08ct | Round | J | VS2 | Ideal
From $88,569
Compare at $106,469
Save 12.3%GIA | 6.03ct | Round | J | SI1 | Excellent
From $89,423
Compare at $102,015
AGS | 6.03ct | Round | I | VS2 | Ideal
From $89,548
Compare at $91,603
Save 23.1%GIA | 6.03ct | Round | J | SI1 | Excellent
From $89,548
Compare at $116,487
Save 16.1%GIA | 6.31ct | Round | J | SI1 | Excellent
From $90,923
Compare at $108,390
Save 16.1%GIA | 6.74ct | Round | K | VVS2 | Very Good
From $91,233
Compare at $108,759
Save 16.1%GIA | 6.02ct | Round | G | SI2 | Excellent
From $92,000
Compare at $109,675
Save 27.7%GIA | 6.03ct | Round | I | SI1 | Ideal
From $92,658
Compare at $128,213
Save 11.7%IGI | 6.01ct | Round | I | IF | Excellent
From $92,760
Compare at $105,055
Entry pricing in this benchmark range starts around $3,230.
What to Know When Shopping for 6 Carat Round Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $564,825 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 $131,848 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 185 comparable stones in the 6.00–6.99 carat benchmark range. Prices start around $3,230 and go up to $568,055.
Based on the latest market data, the average asking price is about $149,850 with a median around $131,848.
The observed spread is roughly $564,825 across tracked listings, which is about 99.4% from highest to lowest offer in the 6.00–6.99 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 $149,850. The median price is $131,848, 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 $564,825 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.
5 Carat Round Natural Diamond Prices
6 Carat Emerald Natural Diamond Prices
6 Carat Oval Natural Diamond Prices
6 Carat Cushion Natural Diamond Prices
6 Carat Pear Natural Diamond Prices
6 Carat Radiant Natural Diamond Prices
6 Carat Princess Natural Diamond Prices
6 Carat Asscher Natural Diamond Prices
6 Carat Heart Natural Diamond Prices
6 Carat Marquise Natural Diamond Prices
Tracking Natural inventory for the 6.00–6.99 carat Round diamond benchmark.