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Heart|Lab Grown|IGI

1.57ct E SI1 Heart Lab Grown Diamond

EX • E/SI1 • IGI LG656489091

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG656489091

Diamond specifications and retailer prices

From $283 SGD
$221 USD
As of October 30, 2026
Save $1,152 SGD (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,436 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.57ct lab-grown heart diamond

This 1.57ct lab-grown heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG656489091 or 656489091. Listed at 15 retailers as of October 29, 2026, with prices from $283 to $1,436, a $1,152 spread on the same certified stone. Brilliant Earth lists it at $1,436. 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

1.57
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG656489091
Dimensions7.30 × 8.05 × 4.56 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.30 mm8.05 mm1.57 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG656489091
Side View
Table 62.0%Crown 37.4°Girdle: MED-THKPavilion 39.2°Culet: NoneDepth 56.6%

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: Oct 30
Current: $1,436 SGD|Low: $281 SGD|High: $1,470 SGD|Avg: $671 SGD
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
October 30, 2026
Retailer 4$283 SGD
Retailer 5$317 SGD
Retailer 15$328 SGD
Retailer 9$351 SGD
Retailer 7$363 SGD
Retailer 2$450 SGD
Retailer 14$472 SGD
Retailer 10$589 SGD
Retailer 3$631 SGD
Retailer 8$651 SGD
Retailer 12$679 SGD
Retailer 6$942 SGD
Retailer 13$1,128 SGD
Retailer 11$1,413 SGD
Brilliant Earth$1,436 SGD

39 data points across 15 retailers

15 retailers$283 SGD to $1,436 SGD

A
Cheapest Retailer
-
$283 SGD
$221 USD
A
Retailer 2
-
$317 SGD
$247 USD
View
Final sale: no returns
A
Retailer 3
-
$328 SGD
$256 USD
View
A
Retailer 4
-
$351 SGD
$274 USD
View
A
Retailer 5
-
$363 SGD
$283 USD
View
A
Retailer 6
-
$450 SGD
£277 GBP
View
B+
Retailer 7
-
$472 SGD
$368 USD
View
A
Retailer 8
-
$589 SGD
€438 EUR
View
B+
Retailer 9
-
$631 SGD
$492 USD
View
B+
Retailer 10
-
$651 SGD
£400 GBP
View
B+
Retailer 11
-
$679 SGD
$530 USD
View
B
Retailer 12
-
$942 SGD
$735 USD
View
B
Retailer 13
-
$1,128 SGD
$880 USD
View
B
Retailer 14
-
$1,413 SGD
£868 GBP
View
Most Expensive
B
Brilliant Earth
13055813A · Oct 29
$1,436 SGD
$1,120 USD
View
14 more retailers have this diamond
Prices start from $283 SGDSave up to $1,152 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
1.57ct Heart
$283 SGD