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Princess|Lab Grown|IGI

1.28ct F IF Princess Lab Grown Diamond

ID • F/IF • IGI LG683544256

Shape and cutting style on the report: Princess cut

Certificate IGI LG683544256

Diamond specifications and retailer prices

From $556 SGD
As of November 6, 2026
Save $2,289 SGD (80%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,845 SGD at Brilliant Earth · As of November 4, 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 F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG683544256 or 683544256. Listed at 23 retailers as of November 4, 2026, with prices from $556 to $2,845, a $2,289 spread on the same certified stone. Brilliant Earth lists it at $2,845. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.7°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683544256
Dimensions5.92 × 5.90 × 4.14 mm
L/W Ratio1.00
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
5.92 mm5.90 mm1.28 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683544256
Side View
Table 67.0%Crown 41.7°Girdle: THN-MEDPavilion 37.9°Culet: NoneDepth 70.2%

Caratlytics Score

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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 6
Current: $2,845 SGD|Low: $551 SGD|High: $2,845 SGD|Avg: $1,439 SGD|+0.5%
Brilliant Earth
Retailer 2
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Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 11
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Retailer 21
November 6, 2026
Retailer 10$556 SGD
Retailer 20$623 SGD
Retailer 21$624 SGD
Retailer 6$691 SGD
Retailer 11$691 SGD
Retailer 17$878 SGD
Retailer 5$984 SGD
Retailer 7$1,087 SGD
Retailer 2$1,128 SGD
Retailer 18$1,191 SGD
Retailer 19$1,214 SGD
Retailer 4$1,226 SGD
Retailer 14$1,676 SGD
Retailer 13$1,687 SGD
Retailer 3$1,846 SGD
Retailer 16$1,936 SGD
Retailer 9$2,220 SGD
Retailer 12$2,259 SGD
Retailer 8$2,488 SGD
Retailer 15$2,529 SGD
Brilliant Earth$2,845 SGD

37 data points across 21 retailers

23 retailers$556 SGD to $2,845 SGD

A
Cheapest Retailer
-
$556 SGD
A
Retailer 2
-
$623 SGD
View
Final sale: no returns
A
Retailer 3
-
$624 SGD
View
A
Retailer 4
-
$691 SGD
View
Retailer 5
-
$691 SGD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$878 SGD
View
A
Retailer 7
-
$984 SGD
View
A
Retailer 8
-
$1,087 SGD
View
A
Retailer 9
-
$1,128 SGD
View
B+
Retailer 10
-
$1,191 SGD
View
Retailer 11
-
$1,214 SGD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
$1,226 SGD
View
Retailer 13
-
$1,676 SGD
View
Price last confirmed 29 days ago
B+
Retailer 14
-
$1,687 SGD
View
B+
Retailer 15
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$1,690 SGD
View
Retailer 16
-
$1,846 SGD
View
Price last confirmed 19 days ago
B
Retailer 17
-
$1,936 SGD
View
B
Retailer 18
-
$2,220 SGD
View
B
Retailer 19
-
$2,259 SGD
View
B
Retailer 20
-
$2,488 SGD
View
B
Retailer 21
-
$2,529 SGD
View
B
Retailer 22
-
$2,673 SGD
View
Most Expensive
B
Brilliant Earth
14844749A · Nov 4
$2,845 SGD
$2,220 USD
View
22 more retailers have this diamond
Prices start from $556 SGDSave up to $2,289 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.

A
1.28ct Princess
$556 SGD