Princess|Lab Grown|IGI

1.28ct D IF Princess Lab Grown Diamond

ID • D/IF • IGI LG741525761

Shape and cutting style on the report: Princess cut

Certificate IGI LG741525761

Diamond specifications and retailer prices

From $2,914 AUD
$2,040 USD
As of November 4, 2026
19 retailers carry this diamond
Most expensive: $2,914 AUD at Brilliant Earth
View at Brilliant Earth

About this 1.28ct lab-grown princess diamond

This 1.28ct lab-grown princess sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG741525761 or 741525761. Listed at 19 retailers as of November 4, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.7°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG741525761
Dimensions5.86 × 5.83 × 4.25 mm
L/W Ratio1.01
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
5.86 mm5.83 mm1.28 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG741525761
Side View
Table 70.0%Crown 45.7°Girdle: MediumPavilion 38.4°Culet: NoneDepth 72.9%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $2,914 AUD|Low: $516 AUD|High: $2,957 AUD|Avg: $1,426 AUD|-1.4%
Brilliant Earth
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
Retailer 21
Retailer 22
October 23, 2026
Retailer 11$541 AUD
Retailer 18$607 AUD
Retailer 13$653 AUD
Retailer 6$671 AUD
Retailer 12$671 AUD
Retailer 16$691 AUD
Retailer 17$836 AUD
Retailer 5$1,009 AUD
Retailer 8$1,069 AUD
Retailer 20$1,143 AUD
Retailer 21$1,166 AUD
Retailer 2$1,189 AUD
Retailer 4$1,276 AUD
Retailer 19$1,647 AUD
Retailer 7$1,687 AUD
Retailer 10$2,160 AUD
Retailer 15$2,186 AUD
Retailer 14$2,214 AUD
Retailer 22$2,393 AUD
Retailer 9$2,521 AUD
Retailer 3$2,638 AUD
Brilliant Earth$2,914 AUD

26 data points across 22 retailers

19 retailers

Retailer 1
-
$541 AUD
Price last confirmed 15 days ago
Retailer 2
-
$607 AUD
View
Price last confirmed 16 days ago
Retailer 3
-
$671 AUD
View
Price last confirmed 20 days ago
Retailer 4
-
$671 AUD
View
Price last confirmed 15 days ago
Retailer 5
-
$836 AUD
View
Price last confirmed 13 days ago
Retailer 6
-
$1,009 AUD
View
Price last confirmed 13 days ago
Retailer 7
-
$1,069 AUD
View
Price last confirmed 13 days ago
Retailer 8
-
$1,143 AUD
View
Price last confirmed 18 days ago
Retailer 9
-
$1,189 AUD
View
Price last confirmed 13 days ago
Retailer 10
-
$1,276 AUD
View
Price last confirmed 13 days ago
Retailer 11
-
$1,647 AUD
View
Price last confirmed 17 days ago
Retailer 12
-
$2,160 AUD
View
Price last confirmed 14 days ago
Retailer 13
-
$2,186 AUD
View
Price last confirmed 28 days ago
Retailer 14
-
$2,214 AUD
View
Price last confirmed 15 days ago
Retailer 15
-
$2,393 AUD
View
Price last confirmed 15 days ago
Retailer 16
-
$2,521 AUD
View
Price last confirmed 13 days ago
Retailer 17
-
$2,574 AUD
View
Price last confirmed 9 days ago
Retailer 18
-
$2,638 AUD
View
Price last confirmed 15 days ago
Most Expensive
B
Brilliant Earth
16462995A · Nov 4
$2,914 AUD
$2,040 USD
View
18 more retailers have this diamond

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
1.28ct Princess
$2,914 AUD