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Heart|Lab Grown|IGI

1.28ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG818681475

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818681475

Diamond specifications and retailer prices

From $405 SGD
As of November 4, 2026
Save $3,186 SGD (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,591 SGD at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.28ct lab-grown heart diamond

This 1.28ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818681475 or 818681475. Listed at 11 retailers as of November 4, 2026, with prices from $405 to $3,591, a $3,186 spread on the same certified stone. Do Amore Diamonds lists it at $3,591. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818681475
Dimensions6.51 × 7.59 × 4.46 mm
L/W Ratio1.17
Girdle conditionFaceted
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
6.51 mm7.59 mm1.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818681475
Side View
Table 58.0%Crown 32.2°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 58.8%

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 4
Current: $3,591 SGD|Low: $405 SGD|High: $5,278 SGD|Avg: $1,867 SGD|-32.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 6$405 SGD
Retailer 10$470 SGD
Retailer 11$741 SGD
Retailer 8$814 SGD
Retailer 3$889 SGD
Retailer 12$1,243 SGD
Retailer 7$1,472 SGD
Retailer 9$1,781 SGD
Retailer 2$2,165 SGD
Retailer 5$3,361 SGD
Retailer 4$3,371 SGD
Do Amore Diamonds$3,591 SGD

23 data points across 12 retailers

11 retailers$405 SGD to $3,591 SGD

A
Cheapest Retailer
-
$405 SGD
A
Retailer 2
-
$470 SGD
View
A
Retailer 3
-
$741 SGD
View
A
Retailer 4
-
$814 SGD
View
A
Retailer 5
-
$889 SGD
View
B+
Retailer 6
-
$1,243 SGD
View
B+
Retailer 7
-
$1,472 SGD
View
B+
Retailer 8
-
$1,781 SGD
View
B+
Retailer 9
-
$2,165 SGD
View
B
Retailer 10
-
$3,361 SGD
View
Most Expensive
B
Do Amore Diamonds
27-396AFF3E3 · Nov 4
$3,591 SGD
$2,810 USD
View
10 more retailers have this diamond
Prices start from $405 SGDSave up to $3,186 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 Heart
$405 SGD