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Radiant|Lab Grown|IGI

1.04ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG656491376

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

Certificate IGI LG656491376

Diamond specifications and retailer prices

From $227 AUD
As of November 6, 2026
Save $617 AUD (73%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $844 AUD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.04ct lab-grown radiant diamond

This 1.04ct 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 LG656491376 or 656491376. Listed at 5 retailers as of November 6, 2026, with prices from $227 to $844, a $617 spread on the same certified stone. Brilliant Earth lists it at $844. 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

1.04
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.7°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG656491376
Dimensions5.59 × 5.59 × 3.92 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.59 mm5.59 mm1.04 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG656491376
Side View
Table 67.0%Crown 42.7°Girdle: Slightly ThickPavilion 39°Culet: NoneDepth 70.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $844 AUD|Low: $227 AUD|High: $913 AUD|Avg: $580 AUD|-3.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5$227 AUD
Retailer 8$316 AUD
Retailer 3$364 AUD
Retailer 2$470 AUD
Retailer 9$603 AUD
Retailer 6$671 AUD
Retailer 4$677 AUD
Retailer 7$691 AUD
Brilliant Earth$844 AUD
Retailer 10$913 AUD

12 data points across 10 retailers

5 retailers$227 AUD to $844 AUD

A
Cheapest Retailer
-
$227 AUD
Final sale: no returns
B+
Retailer 2
-
$364 AUD
View
A
Retailer 3
-
$470 AUD
View
Retailer 4
-
$677 AUD
View
Price last confirmed 17 days ago
Most Expensive
B+
Brilliant Earth
20628504A · Nov 6
$844 AUD
$580 USD
View
4 more retailers have this diamond
Prices start from $227 AUDSave up to $617 AUD

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
1.04ct Radiant
$227 AUD