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Princess|Lab Grown|IGI

1.28ct D IF Princess Lab Grown Diamond

ID • D/IF • IGI LG801694973

Shape and cutting style on the report: Princess cut

Certificate IGI LG801694973

Diamond specifications and retailer prices

From $2,971 AUD
$2,080 USD
As of November 4, 2026
4 retailers carry this diamond
Most expensive: $2,971 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 LG801694973 or 801694973. Listed at 4 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 angle40.9°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801694973
Dimensions5.98 × 5.81 × 4.26 mm
L/W Ratio1.03
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
5.98 mm5.81 mm1.28 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801694973
Side View
Table 65.0%Crown 40.9°Girdle: Slightly ThickPavilion 38.4°Culet: NoneDepth 73.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 4
Current: $2,971 AUD|Low: $657 AUD|High: $3,700 AUD|Avg: $1,798 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
September 25, 2026
Retailer 7$657 AUD
Retailer 5$800 AUD
Retailer 3$907 AUD
Retailer 4$980 AUD
Retailer 2$2,307 AUD
Retailer 8$2,314 AUD
Brilliant Earth$2,971 AUD
Retailer 6$3,700 AUD

2 data points across 8 retailers

4 retailers

Retailer 1
-
$416 AUD
Price last confirmed 44 days ago
Retailer 2
-
$483 AUD
View
Price last confirmed 43 days ago
Retailer 3
-
$2,314 AUD
View
Price last confirmed 53 days ago
Most Expensive
B
Brilliant Earth
21060362Y · Nov 4
$2,971 AUD
$2,080 USD
View
3 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
$2,971 AUD