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3.67ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG631415591

Shape and cutting style on the report: Round brilliant

Certificate IGI LG631415591

Diamond specifications and retailer prices

From $1,864 AUD
CA$1,819 CAD
As of October 30, 2026
Save $602 AUD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $2,466 AUD at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 3.67ct lab-grown round diamond

This 3.67ct 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 LG631415591 or 631415591. Listed at 2 retailers as of October 30, 2026, with prices from $1,864 to $2,466, a $602 spread on the same certified stone. The Diamond Guys lists it at $2,466. 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

3.67
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG631415591
Dimensions10.00 × 9.95 × 6.05 mm
L/W Ratio1.01
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
10.00 mm9.95 mm3.67 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG631415591
Side View
Table 58.0%Crown 34.2°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.7%

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: $3,043 AUD|Low: $372 AUD|High: $7,118 AUD|Avg: $2,054 AUD|-4.5%
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$1,027 AUD
Retailer 6$1,096 AUD
Retailer 11$1,237 AUD
Retailer 2$1,251 AUD
Retailer 7$1,455 AUD
Retailer 10$1,509 AUD
Retailer 5$1,554 AUD
Retailer 8$1,864 AUD
Retailer 3$2,420 AUD
The Diamond Guys$2,466 AUD
Retailer 1$3,043 AUD
Retailer 12$3,858 AUD
Retailer 9$7,118 AUD

57 data points across 13 retailers

2 retailers$1,864 AUD to $2,466 AUD

B+
Cheapest Retailer
-
$1,864 AUD
CA$1,819 CAD
Most Expensive
B
The Diamond Guys
1954434375 · Nov 1
$2,466 AUD
$1,732 USD
View
1 more retailer has this diamond
Prices start from $1,864 AUDSave up to $602 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+
3.67ct Round
$1,864 AUD