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Heart|Lab Grown|IGI

4.51ct E FL Heart Lab Grown Diamond

ID • E/FL • IGI LG794623406

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG794623406

Diamond specifications and retailer prices

From HK$35,133 HKD
$4,478 USD
As of October 30, 2026
Save HK$206,593 HKD (85%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$241,726 HKD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.51ct lab-grown heart diamond

This 4.51ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG794623406 or 794623406. Listed at 9 retailers as of October 30, 2026, with prices from HK$35,133 to HK$241,726, a HK$206,593 spread on the same certified stone. Do Amore Diamonds lists it at HK$241,726. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.51
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794623406
Dimensions11.84 × 9.95 × 6.57 mm
L/W Ratio1.19
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
11.84 mm9.95 mm4.51 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794623406
Side View
Table 59.0%Crown 35.3°Girdle: STK-THKPavilion 37.3°Culet: NoneDepth 55.5%

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$241,726 HKD|Low: HK$35,133 HKD|High: HK$312,808 HKD|Avg: HK$126,985 HKD|-22.7%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 12HK$35,133 HKD
Retailer 10HK$36,820 HKD
Retailer 9HK$52,543 HKD
Retailer 7HK$52,566 HKD
Retailer 8HK$53,406 HKD
Retailer 11HK$63,040 HKD
Retailer 6HK$92,028 HKD
Retailer 4HK$103,971 HKD
Retailer 2HK$113,841 HKD
Retailer 13HK$131,180 HKD
Retailer 3HK$183,303 HKD
Do Amore DiamondsHK$241,726 HKD
Retailer 5HK$305,829 HKD

21 data points across 13 retailers

9 retailersHK$35,133 HKD to HK$241,726 HKD

A
Cheapest Retailer
-
HK$35,133 HKD
$4,478 USD
A
Retailer 2
-
HK$36,820 HKD
$4,693 USD
View
A
Retailer 3
-
HK$52,543 HKD
$6,697 USD
View
A
Retailer 4
-
HK$52,566 HKD
$6,700 USD
View
A
Retailer 5
-
HK$53,406 HKD
$6,807 USD
View
A
Retailer 6
-
HK$63,040 HKD
$8,035 USD
View
B+
Retailer 7
-
HK$92,028 HKD
£9,236 GBP
View
B+
Retailer 8
-
HK$113,841 HKD
$14,510 USD
View
Most Expensive
B
Do Amore Diamonds
27-84D286800 · Oct 31
HK$241,726 HKD
$30,810 USD
View
8 more retailers have this diamond
Prices start from HK$35,133 HKDSave up to HK$206,593 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
4.51ct Heart
HK$35,133 HKD