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Radiant|Lab Grown|IGI

1.02ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG474116511

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

Certificate IGI LG474116511

Diamond specifications and retailer prices

From $1,245 NZD
As of November 6, 2026
Save $1,104 NZD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,059 NZD at NZ Jewellers · As of November 6, 2026
View at NZ Jewellers

About this 1.02ct lab-grown radiant diamond

This 1.02ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG474116511 or 474116511. Listed at 12 retailers as of November 6, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.02
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47°
Pavilion angle29°
OriginLab Grown
Grading LabIGI
CertificateIGI LG474116511
Dimensions6.45 × 4.93 × 3.29 mm
L/W Ratio1.31
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.45 mm4.93 mm1.02 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG474116511
Side View
Table 62.5%Crown 47°Girdle: Slightly ThickPavilion 29°Culet: NoneDepth 66.7%

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: Nov 6
Current: $4,059 NZD|Low: $911 NZD|High: $5,738 NZD|Avg: $2,251 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 4$911 NZD
Retailer 8$1,245 NZD
Retailer 12$1,355 NZD
Retailer 3$1,394 NZD
Retailer 10$1,443 NZD
Retailer 9$1,642 NZD
Retailer 6$1,759 NZD
Retailer 5$2,291 NZD
Retailer 11$2,349 NZD
Retailer 7$3,555 NZD
NZ Jewellers$4,059 NZD
Retailer 2$5,653 NZD

43 data points across 12 retailers

12 retailers$1,245 NZD to $2,349 NZD

B+
Cheapest Retailer
-
$1,245 NZD
B
Retailer 2
-
$1,355 NZD
View
B
Retailer 3
-
$1,394 NZD
View
Final sale: no returns
Retailer 4
-
$1,443 NZD
View
Price last confirmed 22 days ago
B
Retailer 5
-
$1,443 NZD
View
B
Retailer 6
-
$1,642 NZD
View
B
Retailer 7
-
$1,759 NZD
View
B
Retailer 8
-
$2,291 NZD
View
B
Retailer 9
-
$2,349 NZD
View
Retailer 10
-
$3,555 NZD
View
Price under review
Most Expensive
NZ Jewellers
477c9b58-a490-4a7b-851d-ec5ef021df07 · Nov 6
$4,059 NZD
$2,250 USD
View
Price under review
10 more retailers have this diamond
Prices start from $1,245 NZDSave up to $1,104 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+
1.02ct Radiant
$1,245 NZD