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Radiant|Lab Grown|IGI

1.09ct F SI1 Radiant Lab Grown Diamond

EX • F/SI1 • IGI LG847616297

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

Certificate IGI LG847616297

Diamond specifications and retailer prices

From $188 AUD
$132 USD
As of November 1, 2026
Save $654 AUD (78%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $842 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.09ct lab-grown radiant diamond

This 1.09ct lab-grown radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG847616297 or 847616297. Listed at 3 retailers as of November 1, 2026, with prices from $188 to $842, a $654 spread on the same certified stone. Brilliant Earth lists it at $842. 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

1.09
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.9°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847616297
Dimensions7.34 × 5.04 × 3.35 mm
L/W Ratio1.46
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.34 mm5.04 mm1.09 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847616297
Side View
Table 65.0%Crown 45.9°Girdle: MediumPavilion 34.5°Culet: NoneDepth 66.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $842 AUD|Low: $188 AUD|High: $842 AUD|Avg: $592 AUD
Brilliant Earth
Retailer 2
Retailer 3
November 2, 2026
Retailer 3$188 AUD
Retailer 2$439 AUD
Brilliant Earth$842 AUD

11 data points across 3 retailers

3 retailers$188 AUD to $842 AUD

A
Cheapest Retailer
-
$188 AUD
$132 USD
Final sale: no returns
B+
Retailer 2
-
$439 AUD
£242 GBP
View
Most Expensive
B
Brilliant Earth
22194561A · Nov 2
$842 AUD
$590 USD
View
2 more retailers have this diamond
Prices start from $188 AUDSave up to $654 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
1.09ct Radiant
$188 AUD