0.3 Carat Round Natural Diamond Prices Comparison
As of February 2026, 0.3 carat round natural diamonds usually range from $221 to $1,010, with an average price of $560.In the last month, prices for these diamonds are down 1.8%.Compare 1,073 verified listings across 3 retailers tracked by CaratRadar.
0.3 Carat Round Natural Diamond Market Overview
CaratRadar currently tracks 1,073 verified 0.3-carat round natural diamonds listed across 3 online retailers. Prices in this segment range from $221 to $1,010, with an average asking price of $560 and a median of $545.
The price spread of $789 (78.1% 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.
1,073 diamonds tracked in this segment
Price range: $221 to $1,010
Average price: $560
Median price: $545
Available across 3 retailers
Savings potential: up to 78.1%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
1,073
$221
$560
$545
$1,010
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 20.9%0.27ct | Round | F | VS1 | Ideal
From $450
Compare at $569
GIASave 14.2%0.27ct | Round | D | VVS1 | Ideal
From $549
Compare at $640
GIASave 23.6%0.27ct | Round | G | VS1 | Excellent
From $466
Compare at $610
GIASave 20.9%0.27ct | Round | E | VS2 | Excellent
From $450
Compare at $569
GIA0.27ct | Round | D | VS1 | Excellent
From $460
Compare at $497
GIA0.27ct | Round | E | VVS1 | Ideal
From $550
Compare at $610
0.27ct | Round | G | VS2 | Ideal
From $410
Compare at $530
GIASave 22%0.27ct | Round | F | VVS1 | Ideal
From $520
Compare at $666
GIASave 21.2%0.27ct | Round | I | VVS2 | Ideal
From $340
Compare at $432
GIASave 29.7%0.27ct | Round | F | VS1 | Ideal
From $400
Compare at $569
0.27ct | Round | G | VS1 | Excellent
From $390
Compare at $503
0.27ct | Round | F | VS1 | Excellent
From $450
Compare at $569
GIASave 20.9%0.27ct | Round | E | VS2 | Ideal
From $450
Compare at $569
GIASave 26.8%0.27ct | Round | E | VS2 | Ideal
From $534
Compare at $730
GIASave 20.1%0.27ct | Round | F | VS2 | Ideal
From $430
Compare at $538
GIASave 19%0.27ct | Round | G | VVS1 | Ideal
From $420
Compare at $518
GIASave 20.5%0.27ct | Round | E | VS1 | Ideal
From $440
Compare at $554
0.27ct | Round | F | VS1 | Ideal
From $450
Compare at $569
0.27ct | Round | F | VS1 | Ideal
From $440
Compare at $554
GIASave 21.3%0.27ct | Round | D | VS1 | Ideal
From $460
Compare at $585
GIASave 22.5%0.27ct | Round | F | VVS1 | Ideal
From $530
Compare at $684
0.27ct | Round | F | VS1 | Ideal
From $440
Compare at $554
0.27ct | Round | F | SI1 | Ideal
From $360
Compare at $468
0.27ct | Round | G | VS1 | Ideal
From $380
Compare at $490
GIASave 20.1%0.27ct | Round | F | VS1 | Ideal
From $430
Compare at $538
0.27ct | Round | H | VVS2 | Excellent
From $410
Compare at $532
0.27ct | Round | E | SI1 | Ideal
From $390
Compare at $509
GIASave 18.2%0.27ct | Round | D | IF | Ideal
From $613
Compare at $750
GIA0.27ct | Round | D | VVS2 | Excellent
From $560
Compare at $593
GIA0.27ct | Round | E | VVS2 | Ideal
From $500
Compare at $509
0.27ct | Round | E | VS2 | Excellent
From $450
Compare at $569
0.27ct | Round | D | VS1 | Ideal
From $450
Compare at $569
GIASave 22.1%0.27ct | Round | F | IF | Ideal
From $545
Compare at $700
GIASave 20%0.27ct | Round | G | IF | Ideal
From $460
Compare at $575
GIASave 22.5%0.27ct | Round | G | VS1 | Ideal
From $390
Compare at $503
GIASave 20.7%0.27ct | Round | F | VVS2 | Excellent
From $480
Compare at $606
GIASave 19%0.27ct | Round | G | VVS2 | Excellent
From $420
Compare at $518
GIASave 22.4%0.27ct | Round | G | VS1 | Ideal
From $380
Compare at $490
0.27ct | Round | G | VS2 | Ideal
From $410
Compare at $530
GIA0.27ct | Round | F | VS2 | Ideal
From $458
Compare at $480
GIA0.27ct | Round | D | VVS2 | Ideal
From $490
Compare at $527
GIASave 18.7%0.27ct | Round | E | IF | Ideal
From $731
Compare at $900
GIASave 23%0.27ct | Round | H | VVS1 | Ideal
From $410
Compare at $532
GIASave 20.5%0.27ct | Round | F | VVS2 | Very Good
From $440
Compare at $554
GIASave 22.5%0.27ct | Round | G | VS1 | Excellent
From $390
Compare at $503
GIASave 23.4%0.27ct | Round | H | VS2 | Ideal
From $370
Compare at $483
GIA0.27ct | Round | D | VVS1 | Ideal
From $610
Compare at $628
GIASave 10.6%0.27ct | Round | D | VS1 | Ideal
From $470
Compare at $526
0.27ct | Round | E | VS2 | Ideal
From $450
Compare at $569
0.27ct | Round | G | VS2 | Ideal
From $400
Compare at $516
Entry pricing in this category starts around $221.
What to Know When Shopping for 0.3 Carat Round Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $789 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 $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 1,073 comparable stones in this segment. Prices start around $221 and go up to $1,010.
Based on the latest market data, the average asking price is about $560 with a median around $545.
The observed spread is roughly $789 across tracked listings, which is about 78.1% 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 $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 3 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 $789 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 0.3 carat Round diamonds.