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Radiant|Lab Grown|IGI

1.22ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG645443328

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

Certificate IGI LG645443328

Diamond specifications and retailer prices

From $336 AUD
As of November 4, 2026
Save $2,300 AUD (87%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $2,636 AUD at Rare Carat · As of November 2, 2026
View at Rare Carat

About this 1.22ct lab-grown radiant diamond

This 1.22ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG645443328 or 645443328. Listed at 24 retailers as of November 2, 2026, with prices from $336 to $2,636, a $2,300 spread on the same certified stone. Rare Carat lists it at $2,636. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.22
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.8°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645443328
Dimensions7.74 × 5.20 × 3.59 mm
L/W Ratio1.49
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
7.74 mm5.20 mm1.22 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645443328
Side View
Table 63.0%Crown 38.8°Girdle: MediumPavilion 33.9°Culet: NoneDepth 69.0%

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 4
Current: $2,636 AUD|Low: $336 AUD|High: $3,443 AUD|Avg: $1,171 AUD|-1.3%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 3$336 AUD
Retailer 6$376 AUD
Retailer 4$589 AUD
Retailer 9$697 AUD
Retailer 8$719 AUD
Retailer 2$780 AUD
Retailer 7$1,021 AUD
Retailer 12$1,344 AUD
Retailer 5$1,664 AUD
Retailer 10$1,694 AUD
Rare Carat$2,636 AUD
Retailer 11$3,443 AUD

43 data points across 12 retailers

24 retailers$336 AUD to $2,636 AUD

A
Cheapest Retailer
-
$336 AUD
A
Retailer 2
-
$376 AUD
View
Final sale: no returns
Retailer 3
-
$390 AUD
View
Price last confirmed 40 days ago
Retailer 4
-
$411 AUD
View
Price last confirmed 38 days ago
Retailer 5
-
$417 AUD
View
Price last confirmed 34 days ago
A
Retailer 6
-
$493 AUD
View
A
Retailer 7
-
$589 AUD
View
A
Retailer 8
-
$697 AUD
View
A
Retailer 9
-
$719 AUD
View
A
Retailer 10
-
$760 AUD
View
A
Retailer 11
-
$780 AUD
View
A
Retailer 12
-
$1,021 AUD
View
B+
Retailer 13
-
$1,107 AUD
View
B+
Retailer 14
-
$1,340 AUD
View
Retailer 15
-
$1,340 AUD
View
Price last confirmed 37 days ago
Retailer 16
-
$1,340 AUD
View
Price last confirmed 27 days ago
B+
Retailer 17
-
$1,344 AUD
View
B+
Retailer 18
-
$1,411 AUD
View
B+
Retailer 19
-
$1,414 AUD
View
B+
Retailer 20
-
$1,530 AUD
View
B+
Retailer 21
-
$1,664 AUD
View
Retailer 22
-
$1,694 AUD
View
Price last confirmed 7 days ago
B
Retailer 23
-
$1,866 AUD
View
Most Expensive
B
Rare Carat
1053107-77 · Oct 18
$2,636 AUD
$1,845 USD
View
23 more retailers have this diamond
Prices start from $336 AUDSave up to $2,300 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
1.22ct Radiant
$336 AUD