CaratHunter
Plans
Radiant|Lab Grown|IGI

1.22ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG742529028

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

Certificate IGI LG742529028

Diamond specifications and retailer prices

From $300 AUD
As of November 4, 2026
Save $2,586 AUD (90%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,284 AUD at Queensmith · As of October 27, 2026
View at Queensmith

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 LG742529028 or 742529028. Listed at 24 retailers as of November 4, 2026, with a 862% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG742529028
Dimensions7.87 × 5.45 × 3.59 mm
L/W Ratio1.44
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
7.87 mm5.45 mm1.22 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG742529028
Side View
Table 63.0%Crown 39.7°Girdle: MediumPavilion 36.6°Culet: NoneDepth 65.9%

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 4
Current: $420 AUD|Low: $290 AUD|High: $3,343 AUD|Avg: $1,185 AUD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 2$300 AUD
Retailer 9$336 AUD
Retailer 19$349 AUD
Retailer 6$371 AUD
Retailer 10$371 AUD
Retailer 1$420 AUD
Retailer 16$531 AUD
Retailer 15$709 AUD
Retailer 4$720 AUD
Retailer 12$766 AUD
Retailer 18$1,001 AUD
Retailer 5$1,200 AUD
Retailer 3$1,320 AUD
Retailer 13$1,564 AUD
Retailer 11$1,618 AUD
Retailer 14$1,641 AUD
Retailer 8$1,750 AUD
Retailer 17$2,528 AUD
Retailer 20$2,621 AUD
Retailer 7$2,886 AUD

39 data points across 20 retailers

24 retailers$300 AUD to $2,886 AUD

A
Cheapest Retailer
-
$300 AUD
A
Retailer 2
-
$336 AUD
View
Final sale: no returns
A
Retailer 3
-
$349 AUD
View
Retailer 4
-
$371 AUD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$371 AUD
View
A
Retailer 6
-
$420 AUD
View
A
Retailer 7
-
$531 AUD
View
A
Retailer 8
-
$566 AUD
View
A
Retailer 9
-
$709 AUD
View
A
Retailer 10
-
$720 AUD
View
A
Retailer 11
-
$766 AUD
View
A
Retailer 12
-
$859 AUD
View
Retailer 13
-
$1,001 AUD
View
Price last confirmed 10 days ago
B+
Retailer 14
-
$1,200 AUD
View
B+
Retailer 15
-
$1,320 AUD
View
B+
Retailer 16
-
$1,564 AUD
View
B+
Retailer 17
-
$1,610 AUD
View
B+
Retailer 18
-
$1,618 AUD
View
B+
Retailer 19
-
$1,641 AUD
View
B
Retailer 20
-
$1,750 AUD
View
B
Retailer 21
-
$2,528 AUD
View
Retailer 22
-
$2,621 AUD
View
Price last confirmed 19 days ago
B
Retailer 23
-
$2,886 AUD
View
Most Expensive
Queensmith
LG742529028 · Oct 27
$3,284 AUD
£1,810 GBP
View
Price last confirmed 9 days ago
23 more retailers have this diamond
Prices start from $300 AUDSave up to $2,586 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
$300 AUD