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Radiant|Lab Grown|IGI

1.03ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG604300021

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

Certificate IGI LG604300021

Diamond specifications and retailer prices

From $1,053 NZD
As of November 5, 2026
7 retailers carry this diamond
Most expensive: $1,512 NZD at MOH London · As of October 15, 2026
View at MOH London

About this 1.03ct lab-grown radiant diamond

This 1.03ct lab-grown radiant sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG604300021 or 604300021. Listed at 7 retailers as of November 5, 2026. 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

1.03
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.1°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG604300021
Dimensions7.27 × 4.95 × 3.31 mm
L/W Ratio1.47
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
7.27 mm4.95 mm1.03 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG604300021
Side View
Table 65.0%Crown 46.1°Girdle: MediumPavilion 33.9°Culet: NoneDepth 66.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: $1,512 NZD|Low: $224 NZD|High: $2,507 NZD|Avg: $938 NZD|+3.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 17, 2026
Retailer 7$235 NZD
Retailer 9$262 NZD
Retailer 10$469 NZD
Retailer 5$532 NZD
Retailer 11$752 NZD
Retailer 3$844 NZD
Retailer 4$985 NZD
Retailer 8$992 NZD
Retailer 6$1,113 NZD
MOH London$1,512 NZD
Retailer 2$2,507 NZD

15 data points across 11 retailers

7 retailers

Retailer 1
-
$235 NZD
Price last confirmed 30 days ago
Retailer 2
-
$271 NZD
View
Price last confirmed 24 days ago
Retailer 3
-
$532 NZD
View
Price last confirmed 22 days ago
Retailer 4
-
$992 NZD
View
Price last confirmed 23 days ago
Retailer 5
-
$1,028 NZD
View
Price last confirmed 38 days ago
B
Retailer 6
-
$1,053 NZD
View
Most Expensive
MOH London
LG604300021 · Oct 15
$1,512 NZD
£660 GBP
View
Price last confirmed 22 days ago
6 more retailers have this diamond
Prices start from $1,053 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
1.03ct Radiant
$1,053 NZD