1.3 Carat Marquise Natural Diamond Prices Comparison
As of February 2026, 1.3 carat marquise natural diamonds usually range from $531 to $15,135, with an average price of $7,405.In the last month, prices for these diamonds are up 0.8%.Compare 39 verified listings across 6 retailers tracked by CaratRadar.
1.3 Carat Marquise Natural Diamond Market Overview
CaratRadar currently tracks 39 verified 1.3-carat marquise natural diamonds listed across 6 online retailers. Prices in this segment range from $531 to $15,135, with an average asking price of $7,405 and a median of $7,389.
The price spread of $14,604 (96.5% 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.
39 diamonds tracked in this segment
Price range: $531 to $15,135
Average price: $7,405
Median price: $7,389
Available across 6 retailers
Savings potential: up to 96.5%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
39
$531
$7,405
$7,389
$15,135
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
GIA1.25ct | Marquise | K | VS2 | Excellent
From $4,016
Compare at $4,154
GIA1.25ct | Marquise | J | VS1 | Very Good
From $6,100
Compare at $6,262
GIASave 30.6%1.25ct | Marquise | K | VS1 | Excellent
From $4,357
Compare at $6,278
IGISave 36.5%1.26ct | Marquise | D | VS1 | Very Good
From $565
Compare at $890
GIASave 37.9%1.26ct | Marquise | K | VS1 | Very Good
From $3,312
Compare at $5,336
GIASave 33.9%1.26ct | Marquise | E | IF | Excellent
From $14,092
Compare at $21,326
GIASave 55.7%1.27ct | Marquise | D | IF | Excellent
From $12,450
Compare at $28,117
GIA1.27ct | Marquise | K | SI1 | Excellent
From $4,204
Compare at $4,266
GIASave 52.3%1.27ct | Marquise | H | SI1 | Ideal
From $6,670
Compare at $13,981
GIA1.28ct | Marquise | G | VS1 | Good
From $9,331
Compare at $9,404
GIA1.28ct | Marquise | D | SI1 | Excellent
From $7,861
Compare at $8,270
GIA1.29ct | Marquise | D | SI1 | Very Good
From $8,789
Compare at $9,736
GIA1.29ct | Marquise | G | VVS1 | Ideal
From $11,180
Compare at $11,637
GIA1.29ct | Marquise | F | VVS1 | Very Good
From $11,912
Compare at $12,630
GIASave 53.7%1.29ct | Marquise | H | IF | Ideal
From $8,877
Compare at $19,157
GIA1.29ct | Marquise | L | SI2 | Excellent
From $2,151
Compare at $2,244
HRD1.3ct | Marquise | J | VS2 | Ideal
From $3,200
Compare at $3,315
GIA1.3ct | Marquise | F | VS1 | Excellent
From $12,201
Compare at $12,441
GIA1.3ct | Marquise | E | SI2 | Excellent
From $8,730
Compare at $8,801
GIA1.3ct | Marquise | I | SI1 | Excellent
From $6,230
Compare at $6,452
GIASave 10.2%1.3ct | Marquise | J | VVS2 | Very Good
From $5,738
Compare at $6,390
GIA1.3ct | Marquise | H | SI2 | Excellent
From $6,408
Compare at $6,627
GIA1.3ct | Marquise | F | IF | Excellent
From $11,160
Compare at $11,548
GIASave 12.9%1.3ct | Marquise | D | IF | Very Good
From $14,050
Compare at $16,138
GIA1.3ct | Marquise | H | SI2 | Ideal
From $5,284
Compare at $5,391
GIA1.3ct | Marquise | D | VVS1 | Ideal
From $10,070
Compare at $10,311
GIA1.3ct | Marquise | F | SI2 | Very Good
From $7,389
Compare at $7,449
GIA1.3ct | Marquise | H | SI2 | Excellent
From $7,556
Compare at $7,702
GIASave 24.2%1.3ct | Marquise | I | VS1 | Very Good
From $4,651
Compare at $6,135
GIASave 33.6%1.3ct | Marquise | D | VVS1 | Very Good
From $15,135
Compare at $22,799
IGISave 54.8%1.31ct | Marquise | D | VS1 | Very Good
From $531
Compare at $1,173
GIA1.31ct | Marquise | G | VVS2 | Excellent
From $12,071
Compare at $12,309
GIA1.31ct | Marquise | D | VVS2 | Ideal
From $13,320
Compare at $14,500
GIA1.32ct | Marquise | I | VS2 | Very Good
From $7,546
Compare at $7,582
GIA1.32ct | Marquise | F | VS2 | Ideal
From $7,626
Compare at $7,640
IGISave 46.1%1.32ct | Marquise | I | VS2 | Ideal
From $1,233
Compare at $2,289
IGISave 71.3%1.33ct | Marquise | E | VVS2 | Very Good
From $596
Compare at $2,075
GIA1.33ct | Marquise | J | SI1 | Excellent
From $5,091
Compare at $5,433
GIA1.35ct | Marquise | I | IF | Ideal
From $7,120
Compare at $7,279
Entry pricing in this category starts around $531.
What to Know When Shopping for 1.3 Carat Marquise Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $14,604 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 $7,389 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.
- Marquise diamonds maximize carat weight face-up and appear larger than their actual weight. Check symmetry carefully.
Frequently Asked Questions
We currently track 39 comparable stones in this segment. Prices start around $531 and go up to $15,135.
Based on the latest market data, the average asking price is about $7,405 with a median around $7,389.
The observed spread is roughly $14,604 across tracked listings, which is about 96.5% 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 $7,389, 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 $14,604 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 1.3 carat Marquise diamonds.