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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 €424 EUR
HK$3,700 HKD
As of October 31, 2026
Save €1,626 EUR (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €2,050 EUR 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 €424 to €2,050, a €1,626 spread on the same certified stone. Brilliant Earth lists it at €2,050. 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
Color
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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €2,050 EUR|Low: €356 EUR|High: €3,473 EUR|Avg: €1,124 EUR|-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€356 EUR
Retailer 2€424 EUR
Retailer 9€495 EUR
Retailer 8€595 EUR
Retailer 11€608 EUR
Retailer 3€632 EUR
Retailer 10€705 EUR
Retailer 5€756 EUR
Retailer 7€957 EUR
Retailer 6€1,233 EUR
Retailer 12€1,543 EUR
Retailer 13€1,848 EUR
Brilliant Earth€2,050 EUR

40 data points across 13 retailers

16 retailers€424 EUR to €2,050 EUR

Retailer 1
-
€318 EUR
$355 USD
Price last confirmed 15 days ago
Retailer 2
-
€369 EUR
$412 USD
View
Price last confirmed 16 days ago
Retailer 3
-
€394 EUR
$440 USD
View
Price last confirmed 28 days ago
A
Retailer 4
-
€424 EUR
HK$3,700 HKD
View
A
Retailer 5
-
€495 EUR
£436 GBP
View
B+
Retailer 6
-
€595 EUR
$665 USD
View
A
Retailer 7
-
€608 EUR
View
B
Retailer 8
-
€632 EUR
$706 USD
View
B+
Retailer 9
-
€705 EUR
£621 GBP
View
B+
Retailer 10
-
€756 EUR
$845 USD
View
B
Retailer 11
-
€957 EUR
$1,069 USD
View
B
Retailer 12
-
€1,233 EUR
SGD 1,862 SGD
View
Retailer 13
-
€1,267 EUR
$1,416 USD
View
Price last confirmed 15 days ago
B
Retailer 14
-
€1,543 EUR
£1,357 GBP
View
B
Retailer 15
-
€1,848 EUR
$2,065 USD
View
Most Expensive
B
Brilliant Earth
21273875A · Oct 31
€2,050 EUR
$2,290 USD
View
15 more retailers have this diamond
Prices start from €424 EURSave up to €1,626 EUR

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
€424 EUR