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Radiant|Lab Grown|IGI

1.43ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG506195332

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

Certificate IGI LG506195332

Diamond specifications and retailer prices

From $1,428 NZD
$805 USD
As of October 30, 2026
Save $4,782 NZD (77%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,210 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 1.43ct lab-grown radiant diamond

This 1.43ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG506195332 or 506195332. Listed at 10 retailers as of October 30, 2026, with prices from $1,428 to $6,210, a $4,782 spread on the same certified stone. MOH London lists it at $6,210. 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

1.43
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle29.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG506195332
Dimensions8.07 × 5.62 × 3.58 mm
L/W Ratio1.44
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
8.07 mm5.62 mm1.43 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG506195332
Side View
Table 65.5%Crown 36.5°Girdle: MediumPavilion 29.1°Culet: NoneDepth 63.7%

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 30
Current: $6,210 NZD|Low: $1,372 NZD|High: $6,294 NZD|Avg: $2,912 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 5$1,428 NZD
Retailer 9$1,554 NZD
Retailer 2$1,632 NZD
Retailer 6$1,657 NZD
Retailer 3$1,969 NZD
Retailer 10$2,578 NZD
Retailer 8$2,672 NZD
Retailer 4$3,941 NZD
Retailer 7$4,658 NZD
MOH London$6,210 NZD

24 data points across 10 retailers

10 retailers$1,428 NZD to $6,210 NZD

A
Cheapest Retailer
-
$1,428 NZD
$805 USD
B+
Retailer 2
-
$1,554 NZD
$876 USD
View
A
Retailer 3
-
$1,632 NZD
$920 USD
View
B+
Retailer 4
-
$1,657 NZD
$934 USD
View
Retailer 5
-
$1,657 NZD
$934 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$1,969 NZD
$1,110 USD
View
B+
Retailer 7
-
$2,672 NZD
$1,506 USD
View
B+
Retailer 8
-
$3,941 NZD
$2,221 USD
View
B+
Retailer 9
-
$4,658 NZD
$2,625 USD
View
Most Expensive
B+
MOH London
LG506195332 · Nov 1
$6,210 NZD
£2,756 GBP
View
9 more retailers have this diamond
Prices start from $1,428 NZDSave up to $4,782 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
1.43ct Radiant
$1,428 NZD