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Radiant|Lab Grown|IGI

1.09ct E SI2 Radiant Lab Grown Diamond

ID • E/SI2 • IGI LG634405513

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG634405513

Diamond specifications and retailer prices

From $386 NZD
$217 USD
As of October 27, 2026
Save $1,547 NZD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,933 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.09ct lab-grown radiant diamond

This 1.09ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG634405513 or 634405513. Listed at 14 retailers as of October 27, 2026, with prices from $386 to $1,933, a $1,547 spread on the same certified stone. MOH London lists it at $1,933. 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

1.09
Carat
E
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634405513
Dimensions6.62 × 5.03 × 3.63 mm
L/W Ratio1.32
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
6.62 mm5.03 mm1.09 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634405513
Side View
Table 65.0%Crown 40.8°Girdle: STK-THKPavilion 33.4°Culet: NoneDepth 72.2%

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 27
Current: $1,933 NZD|Low: $246 NZD|High: $1,947 NZD|Avg: $984 NZD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 10$246 NZD
Retailer 9$431 NZD
Retailer 7$570 NZD
Retailer 6$823 NZD
Retailer 2$891 NZD
Retailer 8$903 NZD
Retailer 5$1,542 NZD
Retailer 3$1,549 NZD
Retailer 4$1,567 NZD
MOH London$1,933 NZD

41 data points across 10 retailers

14 retailers$386 NZD to $1,933 NZD

A
Cheapest Retailer
-
$386 NZD
$217 USD
A
Retailer 2
-
$431 NZD
$242 USD
View
Final sale: no returns
A
Retailer 3
-
$449 NZD
$252 USD
View
A
Retailer 4
-
$481 NZD
$270 USD
View
A
Retailer 5
-
$481 NZD
$270 USD
View
A
Retailer 6
-
$570 NZD
$320 USD
View
B+
Retailer 7
-
$823 NZD
$462 USD
View
B+
Retailer 8
-
$891 NZD
£394 GBP
View
B+
Retailer 9
-
$903 NZD
$507 USD
View
B
Retailer 10
-
$1,003 NZD
HK$4,400 HKD
View
B
Retailer 11
-
$1,542 NZD
$866 USD
View
B
Retailer 12
-
$1,549 NZD
$870 USD
View
B
Retailer 13
-
$1,567 NZD
$880 USD
View
Most Expensive
B
MOH London
LG634405513 · Oct 29
$1,933 NZD
£855 GBP
View
13 more retailers have this diamond
Prices start from $386 NZDSave up to $1,547 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
1.09ct Radiant
$386 NZD