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Heart|Lab Grown|IGI

1.51ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG811645844

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG811645844

Diamond specifications and retailer prices

From HK$4,009 HKD
$511 USD
As of October 30, 2026
Save HK$12,608 HKD (76%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$16,617 HKD at Brilliance · As of November 1, 2026
View at Brilliance

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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811645844 or 811645844. Listed at 10 retailers as of October 30, 2026, with prices from HK$4,009 to HK$16,617, a HK$12,608 spread on the same certified stone. Brilliance lists it at HK$16,617. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811645844
Dimensions7.70 × 7.20 × 4.68 mm
L/W Ratio1.07
Girdle conditionFaceted
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
7.70 mm7.20 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG811645844
Side View
Table 58.0%Crown 37.5°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 60.8%

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: Oct 30
Current: HK$16,617 HKD|Low: HK$4,009 HKD|High: HK$18,186 HKD|Avg: HK$9,980 HKD|-8.6%
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 10HK$4,009 HKD
Retailer 7HK$5,963 HKD
Retailer 3HK$6,983 HKD
Retailer 2HK$7,354 HKD
Retailer 5HK$7,632 HKD
Retailer 8HK$8,403 HKD
Retailer 6HK$11,941 HKD
Retailer 9HK$14,523 HKD
Retailer 4HK$16,401 HKD
BrillianceHK$16,617 HKD

40 data points across 10 retailers

10 retailersHK$4,009 HKD to HK$16,617 HKD

A
Cheapest Retailer
-
HK$4,009 HKD
$511 USD
Final sale: no returns
A
Retailer 2
-
HK$5,963 HKD
$760 USD
View
A
Retailer 3
-
HK$6,983 HKD
$890 USD
View
A
Retailer 4
-
HK$7,354 HKD
£738 GBP
View
A
Retailer 5
-
HK$7,632 HKD
ZAR 15,715 ZAR
View
A
Retailer 6
-
HK$8,403 HKD
$1,071 USD
View
B
Retailer 7
-
HK$11,941 HKD
$1,522 USD
View
B+
Retailer 8
-
HK$14,523 HKD
$1,851 USD
View
B
Retailer 9
-
HK$16,401 HKD
£1,646 GBP
View
Most Expensive
B
Brilliance
D44758911 · Nov 1
HK$16,617 HKD
$2,118 USD
View
9 more retailers have this diamond
Prices start from HK$4,009 HKDSave up to HK$12,608 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$4,009 HKD