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Round|Lab Grown|IGI

3.65ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG646449350

Shape and cutting style on the report: Round brilliant

Certificate IGI LG646449350

Diamond specifications and retailer prices

From $1,854 AUD
CA$1,809 CAD
As of October 30, 2026
Save $599 AUD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $2,453 AUD at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 3.65ct lab-grown round diamond

This 3.65ct 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 LG646449350 or 646449350. Listed at 2 retailers as of October 30, 2026, with prices from $1,854 to $2,453, a $599 spread on the same certified stone. The Diamond Guys lists it at $2,453. 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

3.65
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG646449350
Dimensions10.00 × 9.95 × 5.99 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
10.00 mm9.95 mm3.65 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG646449350
Side View
Table 59.0%Crown 34.3°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.1%

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: $7,075 AUD|Low: $376 AUD|High: $7,075 AUD|Avg: $1,950 AUD|+56.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
The Diamond Guys
August 3, 2026
Retailer 4$1,021 AUD
Retailer 7$1,102 AUD
Retailer 11$1,244 AUD
Retailer 2$1,264 AUD
Retailer 8$1,441 AUD
Retailer 10$1,526 AUD
Retailer 6$1,561 AUD
Retailer 9$1,854 AUD
Retailer 3$2,413 AUD
The Diamond Guys$2,453 AUD
Retailer 5$3,039 AUD
Retailer 12$3,901 AUD
Retailer 1$7,075 AUD

60 data points across 13 retailers

2 retailers$1,854 AUD to $2,453 AUD

B+
Cheapest Retailer
-
$1,854 AUD
CA$1,809 CAD
Most Expensive
B
The Diamond Guys
1954434384 · Nov 1
$2,453 AUD
$1,723 USD
View
1 more retailer has this diamond
Prices start from $1,854 AUDSave up to $599 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+
3.65ct Round
$1,854 AUD