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Radiant|Lab Grown|IGI

1.01ct E SI2 Radiant Lab Grown Diamond

ID • E/SI2 • IGI LG474115728

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

Certificate IGI LG474115728

Diamond specifications and retailer prices

From $592 USD
As of October 27, 2026
Save $1,230 USD (68%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,931 USD at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 1.01ct lab-grown radiant diamond

This 1.01ct 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 LG474115728 or 474115728. Listed at 11 retailers as of October 26, 2026, with a 208% 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

1.01
Carat
E
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.7°
Pavilion angle31.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG474115728
Dimensions6.46 × 4.99 × 3.45 mm
L/W Ratio1.29
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
6.46 mm4.99 mm1.01 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG474115728
Side View
Table 66.0%Crown 46.7°Girdle: Slightly ThickPavilion 31.8°Culet: NoneDepth 69.1%

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: Oct 27
Current: $1,931 USD|Low: $472 USD|High: $3,226 USD|Avg: $1,362 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 8$662 USD
Retailer 6$734 USD
Retailer 5$820 USD
Retailer 7$1,128 USD
Retailer 3$1,141 USD
Retailer 4$1,822 USD
NZ Jewellers$1,931 USD
Retailer 2$3,204 USD

40 data points across 8 retailers

11 retailers$592 USD to $1,822 USD

B+
Cheapest Retailer
-
$592 USD
B
Retailer 2
-
$662 USD
View
Final sale: no returns
B
Retailer 3
-
$663 USD
View
B
Retailer 4
-
$734 USD
View
Price last confirmed 13 days ago
B
Retailer 5
-
$734 USD
View
B
Retailer 6
-
$820 USD
View
B
Retailer 7
-
$1,128 USD
View
B
Retailer 8
-
$1,141 USD
£899 GBP
View
B
Retailer 9
-
$1,822 USD
View
Most Expensive
B
NZ Jewellers
af383010-d3f5-4fa2-9e61-82b3652d8933 · Oct 28
$1,931 USD
View
Price under review
9 more retailers have this diamond
Prices start from $592 USDSave up to $1,230 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.

B+
1.01ct Radiant
$592 USD