0.3 Carat Cushion Natural Diamond Prices Comparison
As of April 2026, 0.3 carat cushion natural diamonds usually range from $291 to $14,711, with an average price of $1,171.In the last month, prices for these diamonds are down 1.5%.Compare 395 verified listings across 5 retailers tracked by CaratRadar.
0.3 Carat Cushion Natural Diamond Market Overview
CaratRadar currently tracks 395 verified 0.3-carat cushion natural diamonds listed across 5 online retailers. Prices in this segment range from $291 to $14,711, with an average asking price of $1,171 and a median of $629.
The price spread of $14,420 (98.0% 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.
395 diamonds tracked in this segment
Price range: $291 to $14,711
Average price: $1,171
Median price: $629
Available across 5 retailers
Savings potential: up to 98.0%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
395
$291
$1,171
$629
$14,711
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
Save 10.7%GIA | 0.3ct | Cushion | E | VVS1 | Very Good
From $550
Compare at $616
Save 12%GIA | 0.3ct | Cushion | E | IF | Excellent
From $608
Compare at $691
GIA | 0.3ct | Cushion | E | VVS1 | Excellent
From $631
Compare at $697
Save 10.4%GIA | 0.3ct | Cushion | G | VS1 | Excellent
From $529
Compare at $590
Save 10.8%GIA | 0.3ct | Cushion | G | VVS2 | Ideal
From $559
Compare at $627
Save 10.6%GIA | 0.3ct | Cushion | G | VVS2 | Excellent
From $550
Compare at $615
Save 11.2%GIA | 0.3ct | Cushion | E | VVS1 | Excellent
From $600
Compare at $676
Save 11.3%GIA | 0.3ct | Cushion | D | VS1 | Excellent
From $591
Compare at $666
Save 11%GIA | 0.3ct | Cushion | E | VS1 | Ideal
From $561
Compare at $630
GIA | 0.3ct | Cushion | I | VS1 | Excellent
From $461
Compare at $496
GIA | 0.3ct | Cushion | D | SI1 | Ideal
From $567
Compare at $630
Save 11.3%GIA | 0.3ct | Cushion | F | VVS2 | Excellent
From $588
Compare at $663
Save 10.2%GIA | 0.3ct | Cushion | G | VS1 | Excellent
From $512
Compare at $570
Save 11.9%GIA | 0.3ct | Cushion | F | VVS1 | Excellent
From $608
Compare at $690
Save 11.9%GIA | 0.3ct | Cushion | F | VVS1 | Excellent
From $608
Compare at $690
Save 11.1%GIA | 0.3ct | Cushion | E | VVS2 | Excellent
From $574
Compare at $646
Save 25.4%GIA | 0.3ct | Cushion | E | VVS2 | Ideal
From $460
Compare at $616
Save 10.3%GIA | 0.3ct | Cushion | F | SI1 | Ideal
From $503
Compare at $560
Save 11.9%GIA | 0.3ct | Cushion | D | VS1 | Ideal
From $605
Compare at $687
Save 10.4%GIA | 0.3ct | Cushion | G | VS1 | Excellent
From $530
Compare at $592
Save 10.2%GIA | 0.3ct | Cushion | F | VS2 | Ideal
From $516
Compare at $575
Save 11.1%GIA | 0.3ct | Cushion | E | VS1 | Excellent
From $583
Compare at $656
Save 11%GIA | 0.3ct | Cushion | G | VVS1 | Excellent
From $571
Compare at $642
Save 10.6%GIA | 0.3ct | Cushion | G | VVS2 | Excellent
From $550
Compare at $615
Save 14%GIA | 0.3ct | Cushion | D | VS2 | Excellent
From $461
Compare at $536
GIA | 0.3ct | Cushion | I | VVS1 | Excellent
From $501
Compare at $530
GIA | 0.3ct | Cushion | E | VVS2 | Very Good
From $490
Compare at $540
Save 10.8%GIA | 0.3ct | Cushion | H | VVS1 | Ideal
From $553
Compare at $620
Save 11%GIA | 0.3ct | Cushion | F | VVS2 | Ideal
From $619
Compare at $696
GIA | 0.3ct | Cushion | D | VS2 | Excellent
From $492
Compare at $546
GIA | 0.3ct | Cushion | D | VS2 | Excellent
From $488
Compare at $540
Save 11.1%GIA | 0.3ct | Cushion | G | VVS1 | Ideal
From $587
Compare at $660
Save 10.4%GIA | 0.3ct | Cushion | E | VS1 | Excellent
From $532
Compare at $594
Save 10.1%GIA | 0.3ct | Cushion | I | IF | Excellent
From $521
Compare at $580
Save 10.9%GIA | 0.3ct | Cushion | E | VVS1 | Excellent
From $561
Compare at $630
Save 11%GIA | 0.3ct | Cushion | F | VVS2 | Excellent
From $573
Compare at $644
Save 25.1%GIA | 0.3ct | Cushion | E | VS1 | Ideal
From $460
Compare at $614
Save 10.8%GIA | 0.3ct | Cushion | E | VS2 | Excellent
From $553
Compare at $620
Save 10.2%GIA | 0.3ct | Cushion | F | VVS1 | Excellent
From $516
Compare at $575
Save 10.7%GIA | 0.3ct | Cushion | E | VS2 | Excellent
From $556
Compare at $622
Save 13.7%GIA | 0.3ct | Cushion | F | SI1 | Ideal
From $456
Compare at $528
Save 10.3%GIA | 0.3ct | Cushion | F | VS2 | Excellent
From $523
Compare at $583
Save 10.1%GIA | 0.3ct | Cushion | H | VVS2 | Excellent
From $509
Compare at $566
Save 10.2%GIA | 0.3ct | Cushion | H | VVS2 | Ideal
From $516
Compare at $575
GIA | 0.3ct | Cushion | H | VS2 | Excellent
From $467
Compare at $514
Save 10.6%GIA | 0.3ct | Cushion | F | VS1 | Excellent
From $550
Compare at $615
Save 17.4%GIA | 0.3ct | Cushion | D | IF | Excellent
From $736
Compare at $891
Save 13.8%GIA | 0.3ct | Cushion | F | SI1 | Ideal
From $463
Compare at $537
Save 24.3%GIA | 0.3ct | Cushion | F | VVS2 | Very Good
From $440
Compare at $582
Save 10.6%GIA | 0.3ct | Cushion | D | VS1 | Excellent
From $556
Compare at $622
Entry pricing in this category starts around $291.
What to Know When Shopping for 0.3 Carat Cushion Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $14,420 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 $629 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.
- Cushion cuts come in standard and modified brilliant varieties. Modified brilliants tend to show more fire, while standard cushions have broader facets.
Frequently Asked Questions
We currently track 395 comparable stones in this segment. Prices start around $291 and go up to $14,711.
Based on the latest market data, the average asking price is about $1,171 with a median around $629.
The observed spread is roughly $14,420 across tracked listings, which is about 98.0% 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 $629, 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 5 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 $14,420 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.
0.2 Carat Cushion Natural Diamond Prices
0.4 Carat Cushion Natural Diamond Prices
0.5 Carat Cushion Natural Diamond Prices
0.6 Carat Cushion Natural Diamond Prices
0.7 Carat Cushion Natural Diamond Prices
0.8 Carat Cushion Natural Diamond Prices
0.9 Carat Cushion Natural Diamond Prices
0.3 Carat Round Natural Diamond Prices
0.3 Carat Emerald Natural Diamond Prices
0.3 Carat Marquise Natural Diamond Prices
0.3 Carat Princess Natural Diamond Prices
0.3 Carat Pear Natural Diamond Prices
Tracking Natural inventory for 0.3 carat Cushion diamonds.