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Round|Lab Grown|IGI

3.64ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG635425156

Shape and cutting style on the report: Round brilliant

Certificate IGI LG635425156

Diamond specifications and retailer prices

From $1,299 USD
CA$1,805 CAD
As of October 30, 2026
Save $419 USD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,718 USD at The Diamond Guys · As of October 30, 2026
View at The Diamond Guys

About this 3.64ct lab-grown round diamond

This 3.64ct 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 LG635425156 or 635425156. Listed at 2 retailers as of October 30, 2026, with prices from $1,299 to $1,718, a $419 spread on the same certified stone. The Diamond Guys lists it at $1,718. 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

3.64
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG635425156
Dimensions10.01 × 9.97 × 6.00 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
10.01 mm9.97 mm3.64 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG635425156
Side View
Table 59.0%Crown 34.1°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.0%

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: $2,135 USD|Low: $263 USD|High: $3,190 USD|Avg: $1,247 USD|-4.7%
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$716 USD
Retailer 5$764 USD
Retailer 9$872 USD
Retailer 11$885 USD
Retailer 6$1,006 USD
Retailer 8$1,069 USD
Retailer 4$1,085 USD
Retailer 7$1,299 USD
Retailer 2$1,690 USD
The Diamond Guys$1,718 USD
Retailer 1$2,135 USD
Retailer 10$2,730 USD

59 data points across 12 retailers

2 retailers$1,299 USD to $1,718 USD

B+
Cheapest Retailer
-
$1,299 USD
CA$1,805 CAD
Most Expensive
B
The Diamond Guys
1954434386 · Oct 30
$1,718 USD
View
1 more retailer has this diamond
Prices start from $1,299 USDSave up to $419 USD

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+
3.64ct Round
$1,299 USD