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Marquise|Lab Grown|IGI

2.55ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG743570555

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG743570555

Diamond specifications and retailer prices

From $394 USD
As of October 30, 2026
Save $1,516 USD (79%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,910 USD at MOH London · As of October 25, 2026
View at MOH London

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 top-tier cut grade and certified by IGI LG743570555 or 743570555. Listed at 17 retailers as of October 25, 2026, with prices from $394 to $1,910, a $1,516 spread on the same certified stone. MOH London lists it at $1,910. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.55
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743570555
Dimensions14.64 × 7.10 × 4.23 mm
L/W Ratio2.06
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.64 mm7.10 mm2.55 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743570555
Side View
Table 60.0%Crown 37.4°Girdle: MED-STKPavilion 37.3°Culet: NoneDepth 59.6%

Caratlytics Score

How it works →
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: $1,910 USD|Low: $378 USD|High: $1,930 USD|Avg: $850 USD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 9$394 USD
Retailer 3$440 USD
Retailer 10$488 USD
Retailer 5$635 USD
Retailer 8$685 USD
Retailer 4$763 USD
Retailer 2$801 USD
Retailer 11$848 USD
Retailer 6$1,369 USD
Retailer 7$1,553 USD
MOH London$1,910 USD

43 data points across 11 retailers

17 retailers$394 USD to $1,910 USD

A
Cheapest Retailer
-
$394 USD
A
Retailer 2
-
$440 USD
View
Final sale: no returns
A
Retailer 3
-
$441 USD
View
A
Retailer 4
-
$488 USD
View
A
Retailer 5
-
$488 USD
View
A
Retailer 6
-
$635 USD
View
B+
Retailer 7
-
$685 USD
View
A
Retailer 8
-
$763 USD
€727 EUR
View
B+
Retailer 9
-
$801 USD
£631 GBP
View
B+
Retailer 10
-
$844 USD
View
B+
Retailer 11
-
$848 USD
View
B
Retailer 12
-
$1,369 USD
View
B
Retailer 13
-
$1,553 USD
SGD 2,098 SGD
View
B
Retailer 14
-
$1,569 USD
View
B
Retailer 15
-
$1,606 USD
View
B
Retailer 16
-
$1,812 USD
View
Most Expensive
B
MOH London
LG743570555 · Oct 25
$1,910 USD
£1,504 GBP
View
16 more retailers have this diamond
Prices start from $394 USDSave up to $1,516 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
2.55ct Marquise
$394 USD