CaratHunter
Plans
Round|Lab Grown|IGI

3.81ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG631406611

Shape and cutting style on the report: Round brilliant

Certificate IGI LG631406611

Diamond specifications and retailer prices

From $2,454 NZD
CA$1,921 CAD
As of October 30, 2026
Save $791 NZD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,245 NZD at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 3.81ct lab-grown round diamond

This 3.81ct 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 LG631406611 or 631406611. Listed at 2 retailers as of October 30, 2026, with prices from $2,454 to $3,245, a $791 spread on the same certified stone. The Diamond Guys lists it at $3,245. 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

3.81
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG631406611
Dimensions10.21 × 10.13 × 6.09 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
10.21 mm10.13 mm3.81 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG631406611
Side View
Table 58.0%Crown 34.1°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,148 NZD|Low: $495 NZD|High: $9,422 NZD|Avg: $2,631 NZD|-3.9%
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 10$495 NZD
Retailer 4$1,356 NZD
Retailer 7$1,453 NZD
Retailer 12$1,678 NZD
Retailer 8$1,973 NZD
Retailer 5$2,032 NZD
Retailer 3$2,259 NZD
Retailer 9$2,454 NZD
The Diamond Guys$3,245 NZD
Retailer 1$4,148 NZD
Retailer 6$5,181 NZD
Retailer 2$5,483 NZD
Retailer 11$5,483 NZD

64 data points across 13 retailers

2 retailers$2,454 NZD to $3,245 NZD

B+
Cheapest Retailer
-
$2,454 NZD
CA$1,921 CAD
Most Expensive
B
The Diamond Guys
1954434260 · Nov 1
$3,245 NZD
$1,829 USD
View
1 more retailer has this diamond
Prices start from $2,454 NZDSave up to $791 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+
3.81ct Round
$2,454 NZD