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Radiant|Lab Grown|IGI

1.22ct E IF Radiant Lab Grown Diamond

VG • E/IF • IGI LG578341098

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

Certificate IGI LG578341098

Diamond specifications and retailer prices

From $925 AUD
$650 USD
As of November 1, 2026
Save $3,522 AUD (79%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,448 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.22ct lab-grown radiant diamond

This 1.22ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG578341098 or 578341098. Listed at 20 retailers as of November 1, 2026, with prices from $925 to $4,448, a $3,522 spread on the same certified stone. MOH London lists it at $4,448. 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

1.22
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.7°
Pavilion angle30.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG578341098
Dimensions6.76 × 5.19 × 3.62 mm
L/W Ratio1.30
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
6.76 mm5.19 mm1.22 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG578341098
Side View
Table 68.0%Crown 47.7°Girdle: STK-THKPavilion 30.1°Culet: NoneDepth 69.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $4,448 AUD|Low: $793 AUD|High: $4,502 AUD|Avg: $1,789 AUD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 12$826 AUD
Retailer 4$925 AUD
Retailer 11$1,025 AUD
Retailer 2$1,084 AUD
Retailer 3$1,182 AUD
Retailer 7$1,489 AUD
Retailer 5$1,575 AUD
Retailer 6$1,601 AUD
Retailer 9$1,761 AUD
Retailer 8$2,497 AUD
Retailer 13$2,543 AUD
Retailer 10$2,695 AUD
MOH London$4,448 AUD

33 data points across 13 retailers

20 retailers$925 AUD to $4,448 AUD

Retailer 1
-
$826 AUD
$580 USD
Price last confirmed 9 days ago
B+
Retailer 2
-
$925 AUD
$650 USD
View
Final sale: no returns
Retailer 3
-
$925 AUD
$650 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$1,025 AUD
$720 USD
View
B+
Retailer 5
-
$1,084 AUD
£599 GBP
View
B+
Retailer 6
-
$1,182 AUD
$830 USD
View
B+
Retailer 7
-
$1,298 AUD
$912 USD
View
B+
Retailer 8
-
$1,489 AUD
€996 EUR
View
B
Retailer 9
-
$1,575 AUD
$1,106 USD
View
B+
Retailer 10
-
$1,601 AUD
£886 GBP
View
B
Retailer 11
-
$1,761 AUD
ZAR 19,984 ZAR
View
B
Retailer 12
-
$2,497 AUD
View
B
Retailer 13
-
$2,543 AUD
$1,786 USD
View
B
Retailer 14
-
$2,566 AUD
£1,420 GBP
View
Retailer 15
-
$2,695 AUD
$1,893 USD
View
Price last confirmed 7 days ago
B
Retailer 16
-
$2,972 AUD
£1,644 GBP
View
B
Retailer 17
-
$3,159 AUD
$2,219 USD
View
B
Retailer 18
-
$3,182 AUD
£1,760 GBP
View
B
Retailer 19
-
$3,983 AUD
$2,798 USD
View
Most Expensive
B
MOH London
LG578341098 · Nov 1
$4,448 AUD
£2,460 GBP
View
19 more retailers have this diamond
Prices start from $925 AUDSave up to $3,522 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.

B+
1.22ct Radiant
$925 AUD