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3.77ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG644490184

Shape and cutting style on the report: Round brilliant

Certificate IGI LG644490184

Diamond specifications and retailer prices

From $2,431 NZD
CA$1,900 CAD
As of November 2, 2026
Save $786 NZD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,217 NZD at The Diamond Guys · As of November 3, 2026
View at The Diamond Guys

About this 3.77ct lab-grown round diamond

This 3.77ct 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 LG644490184 or 644490184. Listed at 2 retailers as of November 2, 2026, with prices from $2,431 to $3,217, a $786 spread on the same certified stone. The Diamond Guys lists it at $3,217. 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

3.77
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644490184
Dimensions10.14 × 10.09 × 6.06 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
10.14 mm10.09 mm3.77 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644490184
Side View
Table 59.0%Crown 34.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 59.9%

Caratlytics Score

How it works →
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: Nov 2
Current: $3,907 NZD|Low: $483 NZD|High: $9,135 NZD|Avg: $2,667 NZD|-4.4%
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$1,310 NZD
Retailer 7$1,436 NZD
Retailer 10$1,589 NZD
Retailer 12$1,623 NZD
Retailer 9$1,880 NZD
Retailer 6$1,912 NZD
Retailer 5$2,009 NZD
Retailer 8$2,431 NZD
Retailer 3$3,110 NZD
The Diamond Guys$3,217 NZD
Retailer 1$3,907 NZD
Retailer 11$5,012 NZD
Retailer 2$9,135 NZD

56 data points across 13 retailers

2 retailers$2,431 NZD to $3,217 NZD

B+
Cheapest Retailer
-
$2,431 NZD
CA$1,900 CAD
Most Expensive
B
The Diamond Guys
1954434359 · Nov 3
$3,217 NZD
$1,810 USD
View
1 more retailer has this diamond
Prices start from $2,431 NZDSave up to $786 NZD

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+
3.77ct Round
$2,431 NZD