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Radiant|Lab Grown|IGI

1.09ct F SI1 Radiant Lab Grown Diamond

VG • F/SI1 • IGI LG830647097

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

Certificate IGI LG830647097

Diamond specifications and retailer prices

From $200 AUD
$140 USD
As of November 2, 2026
Save $964 AUD (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,163 AUD at MOH London · As of October 29, 2026
View at MOH London

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 very-good cut grade and certified by IGI LG830647097 or 830647097. Listed at 10 retailers as of October 29, 2026, with prices from $200 to $1,163, a $964 spread on the same certified stone. MOH London lists it at $1,163. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.09
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.8°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830647097
Dimensions7.25 × 5.07 × 3.47 mm
L/W Ratio1.43
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.25 mm5.07 mm1.09 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830647097
Side View
Table 66.0%Crown 43.8°Girdle: MediumPavilion 35.5°Culet: NoneDepth 68.4%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $1,163 AUD|Low: $191 AUD|High: $2,019 AUD|Avg: $645 AUD|-42.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 5$200 AUD
Retailer 9$231 AUD
Retailer 3$323 AUD
Retailer 2$440 AUD
Retailer 6$614 AUD
Retailer 10$709 AUD
Retailer 7$796 AUD
Retailer 8$836 AUD
Retailer 4$840 AUD
MOH London$1,163 AUD

27 data points across 10 retailers

10 retailers$200 AUD to $1,163 AUD

A
Cheapest Retailer
-
$200 AUD
$140 USD
A
Retailer 2
-
$231 AUD
$162 USD
View
A
Retailer 3
-
$440 AUD
€294 EUR
View
B+
Retailer 4
-
$599 AUD
$420 USD
View
B+
Retailer 5
-
$614 AUD
$430 USD
View
B+
Retailer 6
-
$709 AUD
$497 USD
View
B
Retailer 7
-
$796 AUD
$558 USD
View
Retailer 8
-
$836 AUD
SGD 792 SGD
View
Price last confirmed 20 days ago
B
Retailer 9
-
$840 AUD
$589 USD
View
Most Expensive
B
MOH London
LG830647097 · Oct 29
$1,163 AUD
£642 GBP
View
9 more retailers have this diamond
Prices start from $200 AUDSave up to $964 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
$200 AUD