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Marquise|Lab Grown|IGI

1.55ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG813622880

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG813622880

Diamond specifications and retailer prices

From $1,151 USD
As of November 1, 2026
Save $3,159 USD (73%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,310 USD at Brilliant Earth · As of October 31, 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 LG813622880 or 813622880. Listed at 22 retailers as of October 31, 2026, with prices from $1,151 to $4,310, a $3,159 spread on the same certified stone. Brilliant Earth lists it at $4,310. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813622880
Dimensions11.86 × 6.11 × 3.76 mm
L/W Ratio1.94
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
11.86 mm6.11 mm1.55 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813622880
Side View
Table 61.0%Crown 33.7°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.5%

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 1
Current: $4,310 USD|Low: $1,305 USD|High: $4,980 USD|Avg: $2,454 USD|-13.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 2$1,348 USD
Retailer 5$1,365 USD
Retailer 9$1,682 USD
Retailer 3$1,705 USD
Retailer 4$1,719 USD
Retailer 6$1,953 USD
Retailer 8$2,192 USD
Retailer 11$2,275 USD
Retailer 10$3,520 USD
Retailer 7$4,065 USD
Brilliant Earth$4,310 USD

33 data points across 11 retailers

22 retailers$1,151 USD to $4,310 USD

Retailer 1
-
$1,028 USD
Price last confirmed 24 days ago
Retailer 2
-
$1,118 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$1,151 USD
View
Final sale: no returns
Retailer 4
-
$1,192 USD
View
Price last confirmed 30 days ago
Retailer 5
-
$1,192 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
$1,305 USD
View
A
Retailer 7
-
$1,348 USD
£1,061 GBP
View
A
Retailer 8
-
$1,365 USD
View
B+
Retailer 9
-
$1,682 USD
A$2,588 AUD
View
A
Retailer 10
-
$1,705 USD
View
A
Retailer 11
-
$1,719 USD
£1,354 GBP
View
B+
Retailer 12
-
$1,953 USD
€1,860 EUR
View
B+
Retailer 13
-
$2,192 USD
ZAR 35,405 ZAR
View
Retailer 14
-
$2,235 USD
View
Price last confirmed 32 days ago
B+
Retailer 15
-
$2,275 USD
View
B
Retailer 16
-
$3,292 USD
£2,592 GBP
View
B
Retailer 17
-
$3,520 USD
View
B
Retailer 18
-
$3,835 USD
View
B
Retailer 19
-
$3,995 USD
SGD 5,399 SGD
View
B
Retailer 20
-
$4,065 USD
£3,201 GBP
View
B
Retailer 21
-
$4,160 USD
View
Most Expensive
B
Brilliant Earth
21123714A · Oct 31
$4,310 USD
View
21 more retailers have this diamond
Prices start from $1,151 USDSave up to $3,159 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
$1,151 USD