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3.55ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG632401238

Shape and cutting style on the report: Round brilliant

Certificate IGI LG632401238

Diamond specifications and retailer prices

From $1,834 AUD
CA$1,789 CAD
As of October 27, 2026
Save $592 AUD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $2,425 AUD at The Diamond Guys · As of October 28, 2026
View at The Diamond Guys

About this 3.55ct lab-grown round diamond

This 3.55ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG632401238 or 632401238. Listed at 2 retailers as of October 27, 2026, with prices from $1,834 to $2,425, a $592 spread on the same certified stone. The Diamond Guys lists it at $2,425. 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

3.55
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG632401238
Dimensions9.87 × 9.84 × 5.97 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.87 mm9.84 mm3.55 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG632401238
Side View
Table 58.0%Crown 34.1°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.6%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 27
Current: $995 AUD|Low: $372 AUD|High: $4,982 AUD|Avg: $2,112 AUD|-15.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
The Diamond Guys
September 16, 2026
Retailer 6$643 AUD
Retailer 3$901 AUD
Retailer 1$995 AUD
Retailer 5$1,193 AUD
Retailer 2$1,281 AUD
Retailer 11$1,584 AUD
Retailer 4$1,766 AUD
Retailer 7$1,834 AUD
Retailer 9$2,112 AUD
Retailer 12$2,413 AUD
The Diamond Guys$2,425 AUD
Retailer 10$3,049 AUD
Retailer 8$3,772 AUD

61 data points across 13 retailers

2 retailers$1,834 AUD to $2,425 AUD

B+
Cheapest Retailer
-
$1,834 AUD
CA$1,789 CAD
Most Expensive
B
The Diamond Guys
1954434268 · Oct 28
$2,425 AUD
$1,704 USD
View
1 more retailer has this diamond
Prices start from $1,834 AUDSave up to $592 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.

B+
3.55ct Round
$1,834 AUD