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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 HK$1,734 HKD
$221 USD
As of October 30, 2026
Save HK$7,053 HKD (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$8,787 HKD 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 HK$1,734 to HK$8,787, a HK$7,053 spread on the same certified stone. Brilliant Earth lists it at HK$8,787. 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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: HK$8,787 HKD|Low: HK$1,718 HKD|High: HK$8,998 HKD|Avg: HK$4,109 HKD
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 4HK$1,734 HKD
Retailer 5HK$1,938 HKD
Retailer 15HK$2,008 HKD
Retailer 9HK$2,150 HKD
Retailer 7HK$2,220 HKD
Retailer 2HK$2,758 HKD
Retailer 14HK$2,887 HKD
Retailer 10HK$3,608 HKD
Retailer 3HK$3,860 HKD
Retailer 8HK$3,986 HKD
Retailer 12HK$4,158 HKD
Retailer 6HK$5,767 HKD
Retailer 13HK$6,904 HKD
Retailer 11HK$8,649 HKD
Brilliant EarthHK$8,787 HKD

39 data points across 15 retailers

15 retailersHK$1,734 HKD to HK$8,787 HKD

A
Cheapest Retailer
-
HK$1,734 HKD
$221 USD
A
Retailer 2
-
HK$1,938 HKD
$247 USD
View
Final sale: no returns
A
Retailer 3
-
HK$2,008 HKD
$256 USD
View
A
Retailer 4
-
HK$2,150 HKD
$274 USD
View
A
Retailer 5
-
HK$2,220 HKD
$283 USD
View
A
Retailer 6
-
HK$2,758 HKD
£277 GBP
View
B+
Retailer 7
-
HK$2,887 HKD
$368 USD
View
A
Retailer 8
-
HK$3,608 HKD
€438 EUR
View
B+
Retailer 9
-
HK$3,860 HKD
$492 USD
View
B+
Retailer 10
-
HK$3,986 HKD
£400 GBP
View
B+
Retailer 11
-
HK$4,158 HKD
$530 USD
View
B
Retailer 12
-
HK$5,767 HKD
$735 USD
View
B
Retailer 13
-
HK$6,904 HKD
$880 USD
View
B
Retailer 14
-
HK$8,649 HKD
£868 GBP
View
Most Expensive
B
Brilliant Earth
13055813A · Oct 29
HK$8,787 HKD
$1,120 USD
View
14 more retailers have this diamond
Prices start from HK$1,734 HKDSave up to HK$7,053 HKD

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
HK$1,734 HKD