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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 $1,225 SGD
$958 USD
As of October 30, 2026
Save $5,142 SGD (81%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $6,366 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 LG799677033 or 799677033. Listed at 24 retailers as of October 30, 2026, with prices from $1,225 to $6,366, a $5,142 spread on the same certified stone. Brilliant Earth lists it at $6,366. 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 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: Oct 30
Current: $6,366 SGD|Low: $1,225 SGD|High: $6,379 SGD|Avg: $2,939 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
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Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 1, 2026
Retailer 15$1,225 SGD
Retailer 5$1,333 SGD
Retailer 11$1,370 SGD
Retailer 4$1,422 SGD
Retailer 19$1,422 SGD
Retailer 22$1,638 SGD
Retailer 18$1,643 SGD
Retailer 3$1,653 SGD
Retailer 9$1,687 SGD
Retailer 2$2,191 SGD
Retailer 16$2,259 SGD
Retailer 10$2,274 SGD
Retailer 13$2,612 SGD
Retailer 21$3,063 SGD
Retailer 8$3,916 SGD
Retailer 20$3,995 SGD
Retailer 6$4,407 SGD
Retailer 12$4,619 SGD
Retailer 14$4,766 SGD
Retailer 17$4,825 SGD
Retailer 7$4,947 SGD
Brilliant Earth$6,366 SGD

38 data points across 22 retailers

24 retailers$1,225 SGD to $6,366 SGD

A
Cheapest Retailer
-
$1,225 SGD
$958 USD
A
Retailer 2
-
$1,333 SGD
$1,043 USD
View
A
Retailer 3
-
$1,370 SGD
$1,072 USD
View
Final sale: no returns
Retailer 4
-
$1,422 SGD
$1,112 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$1,422 SGD
$1,112 USD
View
A
Retailer 6
-
$1,638 SGD
$1,281 USD
View
A
Retailer 7
-
$1,643 SGD
$1,285 USD
View
A
Retailer 8
-
$1,653 SGD
HK$10,100 HKD
View
A
Retailer 9
-
$1,687 SGD
$1,320 USD
View
A
Retailer 10
-
$2,191 SGD
£1,349 GBP
View
B+
Retailer 11
-
$2,259 SGD
€1,683 EUR
View
A
Retailer 12
-
$2,274 SGD
$1,779 USD
View
B+
Retailer 13
-
$2,612 SGD
ZAR 33,008 ZAR
View
B+
Retailer 14
-
$3,063 SGD
$2,396 USD
View
B+
Retailer 15
-
$3,916 SGD
£2,412 GBP
View
B
Retailer 16
-
$3,995 SGD
$3,125 USD
View
B+
Retailer 17
-
$4,224 SGD
$3,304 USD
View
B
Retailer 18
-
$4,407 SGD
$3,447 USD
View
B
Retailer 19
-
$4,619 SGD
$3,613 USD
View
B
Retailer 20
-
$4,766 SGD
View
Retailer 21
-
$4,821 SGD
$3,771 USD
View
Price last confirmed 84 days ago
B
Retailer 22
-
$4,825 SGD
£2,972 GBP
View
B
Retailer 23
-
$4,947 SGD
$3,870 USD
View
Most Expensive
B
Brilliant Earth
20584022A · Oct 31
$6,366 SGD
$4,980 USD
View
23 more retailers have this diamond
Prices start from $1,225 SGDSave up to $5,142 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
$1,225 SGD