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Round|Lab Grown|IGI

3.77ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG843627448

Shape and cutting style on the report: Round brilliant

Certificate IGI LG843627448

Diamond specifications and retailer prices

From $556 CAD
$398 USD
As of October 29, 2026
Save $2,155 CAD (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,864 CAD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 3.77ct lab-grown round diamond

This 3.77ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG843627448 or 843627448. Listed at 10 retailers as of October 29, 2026, with a 388% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.1°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843627448
Dimensions10.11 × 10.15 × 6.02 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.11 mm10.15 mm3.77 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843627448
Side View
Table 62.0%Crown 32.1°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 59.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $2,864 CAD|Low: $556 CAD|High: $2,864 CAD|Avg: $1,561 CAD
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 8$556 CAD
Retailer 6$623 CAD
Retailer 2$925 CAD
Retailer 3$1,104 CAD
Retailer 10$1,260 CAD
Retailer 7$1,936 CAD
Retailer 5$1,942 CAD
Retailer 9$2,218 CAD
Retailer 4$2,711 CAD
Rare Carat$2,864 CAD

14 data points across 10 retailers

10 retailers$556 CAD to $2,711 CAD

A
Cheapest Retailer
-
$556 CAD
$398 USD
A
Retailer 2
-
$623 CAD
$446 USD
View
A
Retailer 3
-
$925 CAD
£521 GBP
View
A
Retailer 4
-
$1,104 CAD
€753 EUR
View
A
Retailer 5
-
$1,260 CAD
$902 USD
View
B+
Retailer 6
-
$1,936 CAD
$1,386 USD
View
B+
Retailer 7
-
$1,942 CAD
$1,390 USD
View
B+
Retailer 8
-
$2,218 CAD
$1,588 USD
View
B+
Retailer 9
-
$2,711 CAD
£1,528 GBP
View
Most Expensive
Rare Carat
LGRD30-167316 · Oct 21
$2,864 CAD
$2,050 USD
View
Price last confirmed 9 days ago
9 more retailers have this diamond
Prices start from $556 CADSave up to $2,155 CAD

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.

A
3.77ct Round
$556 CAD