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Marquise|Lab Grown|IGI

2.55ct E SI1 Marquise Lab Grown Diamond

VG • E/SI1 • IGI LG831648740

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG831648740

Diamond specifications and retailer prices

From $605 SGD
HK$3,700 HKD
As of October 31, 2026
Save $2,322 SGD (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,928 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.55ct lab-grown marquise diamond

This 2.55ct lab-grown marquise sits in the two to three carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG831648740 or 831648740. Listed at 16 retailers as of October 31, 2026, with prices from $605 to $2,928, a $2,322 spread on the same certified stone. Brilliant Earth lists it at $2,928. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.55
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831648740
Dimensions13.93 × 7.15 × 4.59 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.93 mm7.15 mm2.55 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831648740
Side View
Table 57.0%Crown 34.6°Girdle: MED-STKPavilion 41°Culet: NoneDepth 64.2%

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 31
Current: $2,928 SGD|Low: $509 SGD|High: $4,960 SGD|Avg: $1,606 SGD|-41.0%
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
October 31, 2026
Retailer 4$509 SGD
Retailer 2$605 SGD
Retailer 9$707 SGD
Retailer 8$850 SGD
Retailer 11$868 SGD
Retailer 3$903 SGD
Retailer 10$1,008 SGD
Retailer 5$1,080 SGD
Retailer 7$1,367 SGD
Retailer 6$1,761 SGD
Retailer 12$2,203 SGD
Retailer 13$2,640 SGD
Brilliant Earth$2,928 SGD

40 data points across 13 retailers

16 retailers$605 SGD to $2,928 SGD

Retailer 1
-
$454 SGD
$355 USD
Price last confirmed 15 days ago
Retailer 2
-
$527 SGD
$412 USD
View
Price last confirmed 17 days ago
Retailer 3
-
$562 SGD
$440 USD
View
Price last confirmed 28 days ago
A
Retailer 4
-
$605 SGD
HK$3,700 HKD
View
A
Retailer 5
-
$707 SGD
£436 GBP
View
B+
Retailer 6
-
$850 SGD
$665 USD
View
A
Retailer 7
-
$868 SGD
€647 EUR
View
B
Retailer 8
-
$903 SGD
$706 USD
View
B+
Retailer 9
-
$1,008 SGD
£621 GBP
View
B+
Retailer 10
-
$1,080 SGD
$845 USD
View
B
Retailer 11
-
$1,367 SGD
$1,069 USD
View
B
Retailer 12
-
$1,761 SGD
View
Retailer 13
-
$1,810 SGD
$1,416 USD
View
Price last confirmed 15 days ago
B
Retailer 14
-
$2,203 SGD
£1,357 GBP
View
B
Retailer 15
-
$2,640 SGD
$2,065 USD
View
Most Expensive
B
Brilliant Earth
21273875A · Oct 31
$2,928 SGD
$2,290 USD
View
15 more retailers have this diamond
Prices start from $605 SGDSave up to $2,322 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
2.55ct Marquise
$605 SGD