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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 $1,665 SGD
CA$1,809 CAD
As of October 30, 2026
Save $538 SGD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $2,203 SGD 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 $1,665 to $2,203, a $538 spread on the same certified stone. The Diamond Guys lists it at $2,203. 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: $6,354 SGD|Low: $337 SGD|High: $6,354 SGD|Avg: $1,751 SGD|+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$917 SGD
Retailer 7$990 SGD
Retailer 11$1,117 SGD
Retailer 2$1,135 SGD
Retailer 8$1,294 SGD
Retailer 10$1,370 SGD
Retailer 6$1,401 SGD
Retailer 9$1,665 SGD
Retailer 3$2,167 SGD
The Diamond Guys$2,203 SGD
Retailer 5$2,729 SGD
Retailer 12$3,503 SGD
Retailer 1$6,354 SGD

60 data points across 13 retailers

2 retailers$1,665 SGD to $2,203 SGD

B+
Cheapest Retailer
-
$1,665 SGD
CA$1,809 CAD
Most Expensive
B
The Diamond Guys
1954434384 · Nov 1
$2,203 SGD
$1,723 USD
View
1 more retailer has this diamond
Prices start from $1,665 SGDSave up to $538 SGD

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
$1,665 SGD