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 $2,305 SGD
$1,802 USD
As of October 27, 2026
Save $304 SGD (12%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,609 SGD at Brilliant Earth · As of November 2, 2026
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 20 retailers as of October 27, 2026, with a relatively tight 13% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $2,609 SGD|Low: $462 SGD|High: $2,647 SGD|Avg: $1,277 SGD|-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$485 SGD
Retailer 18$544 SGD
Retailer 13$584 SGD
Retailer 6$601 SGD
Retailer 12$601 SGD
Retailer 16$619 SGD
Retailer 17$748 SGD
Retailer 5$903 SGD
Retailer 8$957 SGD
Retailer 20$1,024 SGD
Retailer 21$1,045 SGD
Retailer 2$1,065 SGD
Retailer 4$1,142 SGD
Retailer 19$1,476 SGD
Retailer 7$1,510 SGD
Retailer 10$1,934 SGD
Retailer 15$1,957 SGD
Retailer 14$1,983 SGD
Retailer 22$2,142 SGD
Retailer 9$2,258 SGD
Retailer 3$2,363 SGD
Brilliant Earth$2,609 SGD

26 data points across 22 retailers

20 retailers$2,305 SGD to $2,609 SGD

Retailer 1
-
$485 SGD
$379 USD
Price last confirmed 12 days ago
Retailer 2
-
$544 SGD
$425 USD
View
Price last confirmed 13 days ago
Retailer 3
-
$601 SGD
$470 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$601 SGD
$470 USD
View
Price last confirmed 12 days ago
Retailer 5
-
$748 SGD
$585 USD
View
Price last confirmed 10 days ago
Retailer 6
-
$903 SGD
$706 USD
View
Price last confirmed 10 days ago
Retailer 7
-
$957 SGD
$748 USD
View
Price last confirmed 11 days ago
Retailer 8
-
$1,024 SGD
ZAR 12,936 ZAR
View
Price last confirmed 15 days ago
Retailer 9
-
$1,065 SGD
£655 GBP
View
Price last confirmed 11 days ago
Retailer 10
-
$1,142 SGD
$893 USD
View
Price last confirmed 10 days ago
Retailer 11
-
$1,476 SGD
A$1,775 AUD
View
Price last confirmed 14 days ago
Retailer 12
-
$1,510 SGD
$1,181 USD
View
Price last confirmed 11 days ago
Retailer 13
-
$1,934 SGD
$1,512 USD
View
Price last confirmed 12 days ago
Retailer 14
-
$1,957 SGD
A$2,354 AUD
View
Price last confirmed 25 days ago
Retailer 15
-
$1,983 SGD
$1,550 USD
View
Price last confirmed 12 days ago
Retailer 16
-
$2,142 SGD
$1,675 USD
View
Price last confirmed 12 days ago
Retailer 17
-
$2,258 SGD
$1,766 USD
View
Price last confirmed 11 days ago
B+
Retailer 18
-
$2,305 SGD
$1,802 USD
View
Retailer 19
-
$2,363 SGD
£1,455 GBP
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
16462995A · Nov 2
$2,609 SGD
$2,040 USD
View
19 more retailers have this diamond
Prices start from $2,305 SGDSave up to $304 SGD

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
$2,305 SGD