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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 $706 NZD
$398 USD
As of October 29, 2026
Save $2,737 NZD (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,637 NZD 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
Colour
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: $3,637 NZD|Low: $706 NZD|High: $3,637 NZD|Avg: $1,988 NZD
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 8$706 NZD
Retailer 6$791 NZD
Retailer 2$1,171 NZD
Retailer 3$1,403 NZD
Retailer 10$1,600 NZD
Retailer 7$2,459 NZD
Retailer 5$2,466 NZD
Retailer 9$2,818 NZD
Retailer 4$3,443 NZD
Rare Carat$3,637 NZD

15 data points across 10 retailers

10 retailers$706 NZD to $3,443 NZD

A
Cheapest Retailer
-
$706 NZD
$398 USD
A
Retailer 2
-
$791 NZD
$446 USD
View
A
Retailer 3
-
$1,171 NZD
£520 GBP
View
A
Retailer 4
-
$1,403 NZD
€753 EUR
View
A
Retailer 5
-
$1,600 NZD
$902 USD
View
B+
Retailer 6
-
$2,459 NZD
$1,386 USD
View
B+
Retailer 7
-
$2,466 NZD
$1,390 USD
View
B+
Retailer 8
-
$2,818 NZD
$1,588 USD
View
B+
Retailer 9
-
$3,443 NZD
£1,528 GBP
View
Most Expensive
Rare Carat
LGRD30-167316 · Oct 21
$3,637 NZD
$2,050 USD
View
Price last confirmed 10 days ago
9 more retailers have this diamond
Prices start from $706 NZDSave up to $2,737 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.

A
3.77ct Round
$706 NZD