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Heart|Lab Grown|IGI

1.51ct H VS1 Heart Lab Grown Diamond

EX • H/VS1 • IGI LG782601931

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG782601931

Diamond specifications and retailer prices

From HK$1,726 HKD
As of November 4, 2026
Save HK$6,810 HKD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$13,495 HKD at Brilliant Earth · As of September 28, 2026
View at Brilliant Earth

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG782601931 or 782601931. Listed at 19 retailers as of November 4, 2026, with a 395% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782601931
Dimensions7.23 × 8.00 × 4.62 mm
L/W Ratio1.11
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 Faint Blue
Top View
7.23 mm8.00 mm1.51 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782601931
Side View
Table 60.0%Crown 36.2°Girdle: MED-STKPavilion 38.7°Culet: NoneDepth 57.8%

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$8,003 HKD|Low: HK$1,726 HKD|High: HK$13,102 HKD|Avg: HK$4,651 HKD|-38.9%
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
Retailer 18
November 5, 2026
Retailer 14HK$1,726 HKD
Retailer 7HK$1,922 HKD
Retailer 15HK$2,001 HKD
Retailer 17HK$2,134 HKD
Retailer 10HK$2,267 HKD
Retailer 11HK$2,840 HKD
Retailer 4HK$3,538 HKD
Retailer 9HK$3,656 HKD
Retailer 16HK$3,680 HKD
Retailer 5HK$3,892 HKD
Retailer 3HK$4,127 HKD
Retailer 13HK$4,982 HKD
Retailer 12HK$5,610 HKD
Retailer 18HK$6,865 HKD
Retailer 8HK$6,928 HKD
Retailer 6HK$7,273 HKD
Brilliant EarthHK$8,003 HKD
Retailer 2HK$8,536 HKD

45 data points across 18 retailers

19 retailersHK$1,726 HKD to HK$8,536 HKD

A
Cheapest Retailer
-
HK$1,726 HKD
A
Retailer 2
-
HK$1,922 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$2,001 HKD
View
A
Retailer 4
-
HK$2,134 HKD
View
Retailer 5
-
HK$2,267 HKD
View
Price last confirmed 11 days ago
A
Retailer 6
-
HK$2,840 HKD
View
A
Retailer 7
-
HK$3,538 HKD
View
A
Retailer 8
-
HK$3,656 HKD
View
A
Retailer 9
-
HK$3,680 HKD
View
A
Retailer 10
-
HK$3,892 HKD
View
A
Retailer 11
-
HK$4,127 HKD
View
A
Retailer 12
-
HK$4,982 HKD
View
B+
Retailer 13
-
HK$5,610 HKD
View
B+
Retailer 14
-
HK$6,865 HKD
View
B+
Retailer 15
-
HK$6,928 HKD
View
B+
Retailer 16
-
HK$7,273 HKD
View
B+
Retailer 17
-
HK$8,003 HKD
View
B
Retailer 18
-
HK$8,536 HKD
View
Most Expensive
Brilliant Earth
20465160A · Sep 28
HK$13,495 HKD
$1,720 USD
View
Price last confirmed 37 days ago
18 more retailers have this diamond
Prices start from HK$1,726 HKDSave up to HK$6,810 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
1.51ct Heart
HK$1,726 HKD