5.5 Carat Marquise Lab Grown Diamond Prices Comparison
As of February 2026, 5.5 carat marquise lab grown diamonds usually range from $974 to $34,810, with an average price of $2,595.In the last month, prices for these diamonds are down 2.4%.Compare 69 verified listings across 7 retailers tracked by CaratRadar.
5.5 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 69 verified 5.5-carat marquise lab grown diamonds listed across 7 online retailers. Prices in this segment range from $974 to $34,810, with an average asking price of $2,595 and a median of $1,696.
The price spread of $33,836 (97.2% 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.
69 diamonds tracked in this segment
Price range: $974 to $34,810
Average price: $2,595
Median price: $1,696
Available across 7 retailers
Savings potential: up to 97.2%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
69
$974
$2,595
$1,696
$34,810
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGISave 81.5%5.47ct | Marquise | G | VS1 | Ideal
From $1,155
Compare at $6,230
IGISave 90.1%5.48ct | Marquise | F | VVS2 | Excellent
From $1,375
Compare at $13,830
IGISave 41%5.48ct | Marquise | G | VS1 | Excellent
From $2,763
Compare at $4,680
IGISave 84.5%5.5ct | Marquise | G | VS1 | Ideal
From $974
Compare at $6,280
IGISave 83.8%5.5ct | Marquise | H | VS2 | Ideal
From $1,146
Compare at $7,090
IGISave 83.7%5.5ct | Marquise | E | VVS2 | Excellent
From $2,231
Compare at $13,690
IGISave 88.6%5.5ct | Marquise | E | VS1 | Excellent
From $1,560
Compare at $13,690
IGISave 53.9%5.5ct | Marquise | D | VVS1 | Ideal
From $6,802
Compare at $14,740
IGISave 79.9%5.5ct | Marquise | F | VS1 | Very Good
From $2,268
Compare at $11,270
IGISave 87.5%5.5ct | Marquise | E | VS1 | Excellent
From $1,696
Compare at $13,600
IGISave 89%5.5ct | Marquise | G | VVS2 | Ideal
From $1,205
Compare at $10,980
IGISave 76.9%5.5ct | Marquise | E | VS1 | Excellent
From $3,163
Compare at $13,670
IGISave 83.7%5.5ct | Marquise | E | VVS2 | Excellent
From $2,231
Compare at $13,690
IGISave 80%5.5ct | Marquise | F | VVS2 | Ideal
From $2,465
Compare at $12,330
IGISave 37.9%5.5ct | Marquise | G | VS2 | Ideal
From $1,160
Compare at $1,868
IGISave 89.4%5.51ct | Marquise | G | VVS2 | Ideal
From $1,162
Compare at $10,990
IGISave 82%5.51ct | Marquise | E | VVS1 | Ideal
From $4,172
Compare at $23,180
IGISave 58.1%5.51ct | Marquise | G | VS1 | Very Good
From $1,485
Compare at $3,546
IGISave 85.8%5.51ct | Marquise | F | VVS2 | Ideal
From $1,767
Compare at $12,430
IGISave 84.2%5.51ct | Marquise | G | VS1 | Ideal
From $993
Compare at $6,290
IGISave 79.4%5.51ct | Marquise | F | VS1 | Excellent
From $1,511
Compare at $7,340
IGISave 81.8%5.51ct | Marquise | E | VS1 | Excellent
From $2,868
Compare at $15,720
IGISave 88.3%5.51ct | Marquise | E | VS1 | Ideal
From $1,607
Compare at $13,700
IGISave 83.4%5.51ct | Marquise | F | VS1 | Ideal
From $1,572
Compare at $9,470
IGISave 87%5.51ct | Marquise | E | VVS2 | Excellent
From $1,769
Compare at $13,590
IGISave 81.9%5.51ct | Marquise | E | VVS2 | Excellent
From $1,725
Compare at $9,546
IGISave 88.8%5.51ct | Marquise | E | VVS2 | Excellent
From $1,705
Compare at $15,240
IGISave 75.8%5.51ct | Marquise | F | VS2 | Very Good
From $1,014
Compare at $4,185
IGISave 19.2%5.51ct | Marquise | E | VVS2 | Very Good
From $1,773
Compare at $2,194
IGISave 78%5.51ct | Marquise | G | VS1 | Excellent
From $1,451
Compare at $6,610
IGISave 88.1%5.51ct | Marquise | G | VS1 | Very Good
From $1,351
Compare at $11,346
IGISave 81.1%5.51ct | Marquise | F | VS2 | Very Good
From $1,886
Compare at $9,980
IGISave 72.9%5.51ct | Marquise | I | VS2 | Ideal
From $1,606
Compare at $5,930
IGISave 83.5%5.51ct | Marquise | F | VVS2 | Ideal
From $2,058
Compare at $12,490
IGISave 75.5%5.52ct | Marquise | F | VS2 | Ideal
From $1,434
Compare at $5,860
IGISave 75.5%5.52ct | Marquise | F | VS2 | Very Good
From $1,434
Compare at $5,860
IGISave 67.6%5.52ct | Marquise | F | VS1 | Very Good
From $1,085
Compare at $3,348
IGISave 79.9%5.52ct | Marquise | D | VS1 | Very Good
From $2,861
Compare at $14,200
IGISave 84.9%5.52ct | Marquise | F | VS1 | Ideal
From $1,710
Compare at $11,310
IGISave 58.9%5.52ct | Marquise | E | VVS1 | Ideal
From $6,409
Compare at $15,580
IGISave 66.2%5.52ct | Marquise | F | VS1 | Ideal
From $1,328
Compare at $3,926
IGISave 77.1%5.52ct | Marquise | F | VVS2 | Excellent
From $1,817
Compare at $7,935
IGISave 77.2%5.52ct | Marquise | F | VVS2 | Ideal
From $1,996
Compare at $8,740
IGISave 75.5%5.52ct | Marquise | I | VS1 | Ideal
From $1,609
Compare at $6,580
IGISave 83.7%5.52ct | Marquise | H | VVS2 | Excellent
From $1,477
Compare at $9,090
IGISave 69.7%5.52ct | Marquise | G | SI1 | Ideal
From $2,369
Compare at $7,820
IGISave 85%5.52ct | Marquise | G | VS1 | Excellent
From $1,568
Compare at $10,480
IGISave 76.9%5.52ct | Marquise | G | VS1 | Excellent
From $1,453
Compare at $6,300
IGISave 34.5%5.52ct | Marquise | G | VS1 | Ideal
From $34,810
Compare at $53,160
IGISave 91.3%5.53ct | Marquise | E | VS1 | Excellent
From $1,308
Compare at $14,960
Entry pricing in this category starts around $974.
What to Know When Shopping for 5.5 Carat Marquise Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $33,836 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 $1,696 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.
- Lab-grown diamonds offer excellent value. Ensure the stone comes with a GIA or IGI certificate confirming it is laboratory-grown.
- 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 69 comparable stones in this segment. Prices start around $974 and go up to $34,810.
Based on the latest market data, the average asking price is about $2,595 with a median around $1,696.
The observed spread is roughly $33,836 across tracked listings, which is about 97.2% 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 $1,696, 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 7 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 $33,836 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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