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Marquise|Lab Grown|IGI

1.55ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG799677033

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG799677033

Diamond specifications and retailer prices

From $958 USD
As of November 4, 2026
Save $4,022 USD (81%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $4,980 USD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.55ct lab-grown marquise diamond

This 1.55ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799677033 or 799677033. Listed at 24 retailers as of November 4, 2026, with prices from $958 to $4,980, a $4,022 spread on the same certified stone. Brilliant Earth lists it at $4,980. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799677033
Dimensions11.65 × 6.11 × 3.80 mm
L/W Ratio1.91
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.65 mm6.11 mm1.55 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799677033
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 62.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $4,980 USD|Low: $958 USD|High: $4,990 USD|Avg: $2,241 USD|-0.2%
Brilliant Earth
Retailer 2
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Retailer 22
November 5, 2026
Retailer 15$958 USD
Retailer 5$1,043 USD
Retailer 11$1,072 USD
Retailer 4$1,112 USD
Retailer 19$1,112 USD
Retailer 22$1,281 USD
Retailer 18$1,285 USD
Retailer 3$1,292 USD
Retailer 9$1,320 USD
Retailer 2$1,696 USD
Retailer 17$1,767 USD
Retailer 10$1,779 USD
Retailer 16$2,045 USD
Retailer 21$2,396 USD
Retailer 8$3,063 USD
Retailer 20$3,125 USD
Retailer 6$3,447 USD
Retailer 12$3,613 USD
Retailer 14$3,728 USD
Retailer 13$3,769 USD
Retailer 7$3,869 USD
Brilliant Earth$4,980 USD

40 data points across 22 retailers

24 retailers$958 USD to $4,980 USD

A
Cheapest Retailer
-
$958 USD
A
Retailer 2
-
$1,043 USD
View
A
Retailer 3
-
$1,072 USD
View
Final sale: no returns
Retailer 4
-
$1,112 USD
View
Price last confirmed 19 days ago
A
Retailer 5
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$1,112 USD
View
A
Retailer 6
-
$1,281 USD
View
A
Retailer 7
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$1,285 USD
View
A
Retailer 8
-
$1,292 USD
View
A
Retailer 9
-
$1,320 USD
View
A
Retailer 10
-
$1,696 USD
View
Retailer 11
-
$1,767 USD
View
Price last confirmed 9 days ago
A
Retailer 12
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$1,779 USD
View
B+
Retailer 13
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$2,045 USD
View
B+
Retailer 14
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$2,396 USD
View
B+
Retailer 15
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$3,063 USD
View
B
Retailer 16
-
$3,125 USD
View
B+
Retailer 17
-
$3,304 USD
View
B
Retailer 18
-
$3,447 USD
View
B
Retailer 19
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$3,613 USD
View
B
Retailer 20
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$3,728 USD
View
B
Retailer 21
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$3,769 USD
View
Retailer 22
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$3,771 USD
View
Price last confirmed 88 days ago
B
Retailer 23
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$3,869 USD
View
Most Expensive
B
Brilliant Earth
20584022A · Nov 4
$4,980 USD
View
23 more retailers have this diamond
Prices start from $958 USDSave up to $4,022 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.55ct Marquise
$958 USD