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Heart|Lab Grown|IGI

1.28ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG752551204

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG752551204

Diamond specifications and retailer prices

From $235 SGD
As of November 6, 2026
Save $1,224 SGD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,459 SGD at Reve Diamonds · As of November 6, 2026
View at Reve 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG752551204 or 752551204. Listed at 18 retailers as of November 6, 2026, with prices from $235 to $1,459, a $1,224 spread on the same certified stone. Reve Diamonds lists it at $1,459. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.28
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG752551204
Dimensions7.49 × 6.58 × 4.49 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.49 mm6.58 mm1.28 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG752551204
Side View
Table 62.0%Crown 37.9°Girdle: MED-THKPavilion 40.3°Culet: NoneDepth 59.9%

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: $518 SGD|Low: $224 SGD|High: $1,461 SGD|Avg: $590 SGD|+3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 11$235 SGD
Retailer 10$261 SGD
Retailer 2$272 SGD
Retailer 3$290 SGD
Retailer 12$290 SGD
Retailer 5$391 SGD
Retailer 1$518 SGD
Retailer 4$610 SGD
Retailer 8$647 SGD
Retailer 7$691 SGD
Retailer 13$933 SGD
Retailer 9$1,102 SGD
Retailer 6$1,352 SGD

45 data points across 13 retailers

18 retailers$235 SGD to $1,459 SGD

A
Cheapest Retailer
-
$235 SGD
A
Retailer 2
-
$261 SGD
View
Final sale: no returns
A
Retailer 3
-
$272 SGD
View
A
Retailer 4
-
$290 SGD
View
Retailer 5
-
$290 SGD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
$391 SGD
View
A
Retailer 7
-
$518 SGD
View
B+
Retailer 8
-
$565 SGD
View
B+
Retailer 9
-
$610 SGD
View
B+
Retailer 10
-
$647 SGD
View
B+
Retailer 11
-
$691 SGD
View
Retailer 12
-
$734 SGD
View
Price last confirmed 11 days ago
B
Retailer 13
-
$933 SGD
View
B
Retailer 14
-
$946 SGD
View
B
Retailer 15
-
$1,002 SGD
View
B
Retailer 16
-
$1,102 SGD
View
B
Retailer 17
-
$1,352 SGD
View
Most Expensive
B
Reve Diamonds
6E563C587 · Nov 6
$1,459 SGD
$1,138 USD
View
17 more retailers have this diamond
Prices start from $235 SGDSave up to $1,224 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
$235 SGD