Round|Lab Grown|IGI

4.09ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG655442229

Shape and cutting style on the report: Round brilliant

Certificate IGI LG655442229

Diamond specifications and retailer prices

From $579 USD
As of October 29, 2026
Save $1,308 USD (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,887 USD at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 4.09ct lab-grown round diamond

This 4.09ct lab-grown round sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG655442229 or 655442229. Listed at 12 retailers as of October 29, 2026, with prices from $579 to $1,887, a $1,308 spread on the same certified stone. NZ Jewellers lists it at $1,887. 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

4.09
Carat
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG655442229
Dimensions10.38 × 10.32 × 6.30 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.38 mm10.32 mm4.09 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG655442229
Side View
Table 57.0%Crown 34.3°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.9%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $1,887 USD|Low: $579 USD|High: $5,010 USD|Avg: $1,784 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 10$579 USD
Retailer 2$648 USD
Retailer 14$718 USD
Retailer 15$794 USD
Retailer 11$850 USD
Retailer 9$1,001 USD
Retailer 13$1,044 USD
Retailer 12$1,088 USD
Retailer 4$1,104 USD
Retailer 3$1,596 USD
Retailer 8$1,781 USD
NZ Jewellers$1,887 USD
Retailer 5$2,060 USD
Retailer 6$4,742 USD
Retailer 7$5,010 USD

4 data points across 15 retailers

12 retailers$579 USD to $1,887 USD

A
Cheapest Retailer
-
$579 USD
A
Retailer 2
-
$648 USD
View
A
Retailer 3
-
$718 USD
View
A
Retailer 4
-
$794 USD
HK$6,200 HKD
View
A
Retailer 5
-
$850 USD
View
A
Retailer 6
-
$1,001 USD
£789 GBP
View
A
Retailer 7
-
$1,044 USD
View
A
Retailer 8
-
$1,088 USD
€1,036 EUR
View
B+
Retailer 9
-
$1,104 USD
View
B+
Retailer 10
-
$1,596 USD
View
B+
Retailer 11
-
$1,781 USD
View
Most Expensive
B+
NZ Jewellers
906ea54f-8952-4ac0-8c3f-bcb648bddadf · Oct 31
$1,887 USD
View
11 more retailers have this diamond
Prices start from $579 USDSave up to $1,308 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.

A
4.09ct Round
$579 USD