Round|Lab Grown|IGI

2.55ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG723566593

Shape and cutting style on the report: Round brilliant

Certificate IGI LG723566593

Diamond specifications and retailer prices

From $642 USD
A$988 AUD
As of October 31, 2026
3 retailers carry this diamond
Most expensive: $1,664 USD at Rare Carat · As of September 9, 2026
View at Rare Carat

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG723566593 or 723566593. Listed at 3 retailers as of October 31, 2026. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG723566593
Dimensions8.82 × 8.77 × 5.38 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.82 mm8.77 mm2.55 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG723566593
Side View
Table 59.0%Crown 34.3°Girdle: MediumPavilion 41.2°Culet: NoneDepth 61.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $1,664 USD|Low: $223 USD|High: $1,664 USD|Avg: $774 USD
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 3, 2026
Retailer 6$223 USD
Retailer 8$548 USD
Retailer 10$570 USD
Retailer 5$579 USD
Retailer 2$642 USD
Retailer 9$705 USD
Retailer 4$776 USD
Retailer 3$800 USD
Retailer 7$1,167 USD
Rare Carat$1,664 USD

2 data points across 10 retailers

3 retailers

A
Cheapest Retailer
-
$642 USD
A$988 AUD
Retailer 2
-
$800 USD
View
Price last confirmed 44 days ago
Most Expensive
Rare Carat
PR-922 · Sep 9
$1,664 USD
View
Price last confirmed 51 days ago
2 more retailers have this diamond
Prices start from $642 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 Round
$642 USD