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Heart|Lab Grown|IGI

1.54ct D SI1 Heart Lab Grown Diamond

ID • D/SI1 • IGI LG598311827

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG598311827

Diamond specifications and retailer prices

From HK$1,857 HKD
As of November 4, 2026
Save HK$8,096 HKD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$9,953 HKD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.54ct lab-grown heart diamond

This 1.54ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG598311827 or 598311827. Listed at 16 retailers as of November 4, 2026, with prices from HK$1,857 to HK$9,953, a HK$8,096 spread on the same certified stone. Brilliant Earth lists it at HK$9,953. 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

1.54
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598311827
Dimensions8.00 × 6.85 × 4.75 mm
L/W Ratio1.17
Girdle conditionFaceted
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
8.00 mm6.85 mm1.54 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598311827
Side View
Table 60.0%Crown 36.8°Girdle: MED-THKPavilion 39.1°Culet: NoneDepth 59.4%

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: Nov 4
Current: HK$9,953 HKD|Low: HK$1,787 HKD|High: HK$23,865 HKD|Avg: HK$6,033 HKD|-3.1%
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
Retailer 16
Retailer 17
November 6, 2026
Retailer 15HK$1,857 HKD
Retailer 17HK$2,147 HKD
Retailer 10HK$2,155 HKD
Retailer 14HK$2,304 HKD
Retailer 4HK$2,704 HKD
Retailer 3HK$3,253 HKD
Retailer 6HK$4,091 HKD
Retailer 5HK$4,279 HKD
Retailer 11HK$4,311 HKD
Retailer 8HK$5,039 HKD
Retailer 9HK$6,466 HKD
Retailer 2HK$7,406 HKD
Retailer 16HK$7,430 HKD
Retailer 7HK$7,790 HKD
Retailer 13HK$8,394 HKD
Retailer 12HK$9,232 HKD
Brilliant EarthHK$9,953 HKD

45 data points across 17 retailers

16 retailersHK$1,857 HKD to HK$9,953 HKD

A
Cheapest Retailer
-
HK$1,857 HKD
A
Retailer 2
-
HK$2,147 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$2,155 HKD
View
A
Retailer 4
-
HK$2,304 HKD
View
A
Retailer 5
-
HK$2,704 HKD
View
B+
Retailer 6
-
HK$3,253 HKD
View
B+
Retailer 7
-
HK$4,091 HKD
View
B+
Retailer 8
-
HK$4,279 HKD
View
B+
Retailer 9
-
HK$4,311 HKD
View
B+
Retailer 10
-
HK$5,039 HKD
View
B
Retailer 11
-
HK$7,406 HKD
View
B
Retailer 12
-
HK$7,430 HKD
View
B
Retailer 13
-
HK$7,790 HKD
View
B
Retailer 14
-
HK$8,394 HKD
View
B
Retailer 15
-
HK$9,232 HKD
View
Most Expensive
B
Brilliant Earth
8062596A · Nov 6
HK$9,953 HKD
$1,270 USD
View
15 more retailers have this diamond
Prices start from HK$1,857 HKDSave up to HK$8,096 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
1.54ct Heart
HK$1,857 HKD