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Marquise|Lab Grown|IGI

1.55ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG811619399

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG811619399

Diamond specifications and retailer prices

From $1,314 SGD
$1,028 USD
As of November 2, 2026
Save $5,065 SGD (79%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $6,379 SGD 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 LG811619399 or 811619399. Listed at 24 retailers as of October 31, 2026, with prices from $1,314 to $6,379, a $5,065 spread on the same certified stone. Brilliant Earth lists it at $6,379. 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
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811619399
Dimensions9.35 × 6.66 × 4.01 mm
L/W Ratio1.40
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
9.35 mm6.66 mm1.55 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811619399
Side View
Table 60.0%Crown 32.9°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.2%

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 2
Current: $6,379 SGD|Low: $1,262 SGD|High: $6,379 SGD|Avg: $2,696 SGD|+0.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 4$1,314 SGD
Retailer 15$1,429 SGD
Retailer 3$1,524 SGD
Retailer 16$1,524 SGD
Retailer 2$1,723 SGD
Retailer 11$1,745 SGD
Retailer 14$2,151 SGD
Retailer 7$2,180 SGD
Retailer 9$2,198 SGD
Retailer 12$2,497 SGD
Retailer 13$2,802 SGD
Retailer 5$2,857 SGD
Retailer 6$2,908 SGD
Retailer 8$4,500 SGD
Retailer 10$5,169 SGD
Brilliant Earth$6,379 SGD

37 data points across 16 retailers

24 retailers$1,314 SGD to $6,379 SGD

A
Cheapest Retailer
-
$1,314 SGD
$1,028 USD
A
Retailer 2
-
$1,429 SGD
$1,118 USD
View
A
Retailer 3
-
$1,471 SGD
$1,151 USD
View
Final sale: no returns
A
Retailer 4
-
$1,524 SGD
$1,192 USD
View
Retailer 5
-
$1,524 SGD
$1,192 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
$1,668 SGD
$1,305 USD
View
A
Retailer 7
-
$1,723 SGD
£1,061 GBP
View
A
Retailer 8
-
$1,745 SGD
$1,365 USD
View
A
Retailer 9
-
$1,783 SGD
$1,395 USD
View
B+
Retailer 10
-
$2,151 SGD
A$2,588 AUD
View
A
Retailer 11
-
$2,180 SGD
$1,705 USD
View
A
Retailer 12
-
$2,198 SGD
£1,354 GBP
View
B+
Retailer 13
-
$2,497 SGD
€1,860 EUR
View
B+
Retailer 14
-
$2,802 SGD
ZAR 35,405 ZAR
View
B+
Retailer 15
-
$2,857 SGD
$2,235 USD
View
B+
Retailer 16
-
$2,908 SGD
$2,275 USD
View
B
Retailer 17
-
$4,208 SGD
£2,592 GBP
View
B
Retailer 18
-
$4,500 SGD
$3,520 USD
View
B
Retailer 19
-
$4,725 SGD
$3,696 USD
View
B
Retailer 20
-
$4,903 SGD
$3,835 USD
View
B
Retailer 21
-
$5,108 SGD
View
B
Retailer 22
-
$5,169 SGD
£3,184 GBP
View
B
Retailer 23
-
$5,318 SGD
$4,160 USD
View
Most Expensive
B
Brilliant Earth
20637611A · Oct 31
$6,379 SGD
$4,990 USD
View
23 more retailers have this diamond
Prices start from $1,314 SGDSave up to $5,065 SGD

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
$1,314 SGD