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Round|Lab Grown|IGI

3.77ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG644484316

Shape and cutting style on the report: Round brilliant

Certificate IGI LG644484316

Diamond specifications and retailer prices

From $1,887 AUD
CA$1,837 CAD
As of October 30, 2026
Save $609 AUD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $2,496 AUD at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 3.77ct lab-grown round diamond

This 3.77ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG644484316 or 644484316. Listed at 2 retailers as of October 30, 2026, with prices from $1,887 to $2,496, a $609 spread on the same certified stone. The Diamond Guys lists it at $2,496. 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

3.77
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644484316
Dimensions10.13 × 10.10 × 6.07 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
10.13 mm10.10 mm3.77 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644484316
Side View
Table 59.0%Crown 34.1°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.0%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: $1,576 AUD|Low: $377 AUD|High: $7,334 AUD|Avg: $2,099 AUD|-7.0%
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
August 3, 2026
Retailer 4$1,026 AUD
Retailer 7$1,116 AUD
Retailer 10$1,253 AUD
Retailer 12$1,267 AUD
Retailer 9$1,527 AUD
Retailer 6$1,532 AUD
Retailer 1$1,576 AUD
Retailer 8$1,887 AUD
Retailer 2$2,447 AUD
The Diamond Guys$2,496 AUD
Retailer 3$3,331 AUD
Retailer 11$3,895 AUD
Retailer 5$7,334 AUD

58 data points across 13 retailers

2 retailers$1,887 AUD to $2,496 AUD

B+
Cheapest Retailer
-
$1,887 AUD
CA$1,837 CAD
Most Expensive
B
The Diamond Guys
1954434358 · Nov 1
$2,496 AUD
$1,749 USD
View
1 more retailer has this diamond
Prices start from $1,887 AUDSave up to $609 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+
3.77ct Round
$1,887 AUD