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Round|Lab Grown|IGI

3.74ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG644471813

Shape and cutting style on the report: Round brilliant

Certificate IGI LG644471813

Diamond specifications and retailer prices

From $572 AUD
$402 USD
As of October 29, 2026
Save $1,983 AUD (78%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,555 AUD at The Diamond Guys · As of October 30, 2026
View at The Diamond Guys

About this 3.74ct lab-grown round diamond

This 3.74ct 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 LG644471813 or 644471813. Listed at 3 retailers as of October 29, 2026, with prices from $572 to $2,555, a $1,983 spread on the same certified stone. The Diamond Guys lists it at $2,555. 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

3.74
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644471813
Dimensions10.04 × 10.00 × 6.08 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
10.04 mm10.00 mm3.74 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644471813
Side View
Table 59.0%Crown 34.2°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.7%

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: $572 AUD|Low: $436 AUD|High: $4,370 AUD|Avg: $1,832 AUD|-4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
The Diamond Guys
October 27, 2026
Retailer 1$572 AUD
Retailer 13$676 AUD
Retailer 7$678 AUD
Retailer 10$902 AUD
Retailer 11$1,042 AUD
Retailer 8$1,112 AUD
Retailer 9$1,169 AUD
Retailer 2$1,620 AUD
Retailer 12$1,713 AUD
Retailer 14$1,740 AUD
Retailer 5$1,931 AUD
The Diamond Guys$2,555 AUD
Retailer 3$3,256 AUD
Retailer 6$3,986 AUD
Retailer 4$4,370 AUD

9 data points across 15 retailers

3 retailers$572 AUD to $2,555 AUD

A
Cheapest Retailer
-
$572 AUD
$402 USD
Final sale: no returns
B+
Retailer 2
-
$1,931 AUD
CA$1,884 CAD
View
Most Expensive
B
The Diamond Guys
1954434263 · Oct 30
$2,555 AUD
$1,795 USD
View
2 more retailers have this diamond
Prices start from $572 AUDSave up to $1,983 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
3.74ct Round
$572 AUD