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Round|Lab Grown|IGI

3.65ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG623496204

Shape and cutting style on the report: Round brilliant

Certificate IGI LG623496204

Diamond specifications and retailer prices

From $1,608 SGD
CA$1,747 CAD
As of October 30, 2026
Save $519 SGD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $2,127 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 LG623496204 or 623496204. Listed at 2 retailers as of October 30, 2026, with prices from $1,608 to $2,127, a $519 spread on the same certified stone. The Diamond Guys lists it at $2,127. 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 angle34.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623496204
Dimensions9.96 × 9.91 × 6.06 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
9.96 mm9.91 mm3.65 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623496204
Side View
Table 57.0%Crown 34.2°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.0%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,369 SGD|Low: $327 SGD|High: $4,308 SGD|Avg: $1,682 SGD|-5.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
The Diamond Guys
August 3, 2026
Retailer 3$883 SGD
Retailer 4$958 SGD
Retailer 8$1,097 SGD
Retailer 11$1,103 SGD
Retailer 5$1,291 SGD
Retailer 7$1,327 SGD
Retailer 1$1,369 SGD
Retailer 6$1,608 SGD
Retailer 2$2,097 SGD
The Diamond Guys$2,127 SGD
Retailer 9$3,388 SGD
Retailer 10$4,308 SGD

62 data points across 12 retailers

2 retailers$1,608 SGD to $2,127 SGD

B+
Cheapest Retailer
-
$1,608 SGD
CA$1,747 CAD
Most Expensive
B
The Diamond Guys
1954434380 · Nov 1
$2,127 SGD
$1,664 USD
View
1 more retailer has this diamond
Prices start from $1,608 SGDSave up to $519 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
$1,608 SGD