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Round|Lab Grown|IGI

2.55ct E SI2 Round Lab Grown Diamond

ID • E/SI2 • IGI LG662418026

Shape and cutting style on the report: Round brilliant

Certificate IGI LG662418026

Diamond specifications and retailer prices

From $420 AUD
$295 USD
As of October 29, 2026
Save $1,253 AUD (75%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,672 AUD at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 2.55ct lab-grown round diamond

This 2.55ct lab-grown round sits in the two to three carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG662418026 or 662418026. Listed at 10 retailers as of October 28, 2026, with prices from $420 to $1,672, a $1,253 spread on the same certified stone. NZ Jewellers lists it at $1,672. 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
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662418026
Dimensions8.79 × 8.82 × 5.40 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.79 mm8.82 mm2.55 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662418026
Side View
Table 56.0%Crown 34.9°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.4%

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 29
Current: $1,672 AUD|Low: $420 AUD|High: $5,328 AUD|Avg: $1,829 AUD
NZ Jewellers
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 30, 2026
Retailer 6$420 AUD
Retailer 13$521 AUD
Retailer 10$583 AUD
Retailer 7$844 AUD
Retailer 8$845 AUD
Retailer 12$853 AUD
Retailer 2$919 AUD
Retailer 9$949 AUD
Retailer 11$968 AUD
NZ Jewellers$1,672 AUD
Retailer 3$2,720 AUD
Retailer 5$4,598 AUD
Retailer 4$5,328 AUD

4 data points across 13 retailers

10 retailers$420 AUD to $1,672 AUD

A
Cheapest Retailer
-
$420 AUD
$295 USD
A
Retailer 2
-
$521 AUD
$366 USD
View
A
Retailer 3
-
$583 AUD
HK$3,200 HKD
View
A
Retailer 4
-
$844 AUD
€565 EUR
View
A
Retailer 5
-
$845 AUD
£467 GBP
View
B+
Retailer 6
-
$853 AUD
$599 USD
View
A
Retailer 7
-
$919 AUD
£509 GBP
View
A
Retailer 8
-
$949 AUD
$667 USD
View
A
Retailer 9
-
$968 AUD
$680 USD
View
Most Expensive
B
NZ Jewellers
fd361da5-969a-4ce9-ae29-9d59bc2976e7 · Oct 28
$1,672 AUD
$1,175 USD
View
9 more retailers have this diamond
Prices start from $420 AUDSave up to $1,253 AUD

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 Round
$420 AUD