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Heart|Lab Grown|IGI

4.00ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG804656578

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG804656578

Diamond specifications and retailer prices

From HK$68,399 HKD
$8,718 USD
As of October 30, 2026
Save HK$182,922 HKD (73%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$251,321 HKD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4ct lab-grown heart diamond

This 4ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804656578 or 804656578. Listed at 19 retailers as of October 30, 2026, with prices from HK$68,399 to HK$251,321, a HK$182,922 spread on the same certified stone. Taylor and Hart lists it at HK$251,321. 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

4.00
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804656578
Dimensions10.82 × 10.39 × 6.22 mm
L/W Ratio1.04
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
10.82 mm10.39 mm4.00 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804656578
Side View
Table 58.0%Crown 36.5°Girdle: MED-THKPavilion 39.5°Culet: NoneDepth 57.5%

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$146,134 HKD|Low: HK$54,229 HKD|High: HK$220,990 HKD|Avg: HK$111,942 HKD|+8.5%
Retailer 1
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
October 31, 2026
Retailer 9HK$54,229 HKD
Retailer 17HK$68,399 HKD
Retailer 5HK$70,345 HKD
Retailer 7HK$73,200 HKD
Retailer 6HK$76,605 HKD
Retailer 16HK$78,614 HKD
Retailer 14HK$78,849 HKD
Retailer 2HK$79,344 HKD
Retailer 4HK$79,344 HKD
Retailer 15HK$88,256 HKD
Retailer 10HK$95,006 HKD
Retailer 11HK$124,668 HKD
Retailer 13HK$145,236 HKD
Retailer 1HK$146,134 HKD
Retailer 12HK$168,887 HKD
Retailer 3HK$203,188 HKD
Retailer 8HK$220,990 HKD

37 data points across 17 retailers

19 retailersHK$68,399 HKD to HK$251,321 HKD

A
Cheapest Retailer
-
HK$68,399 HKD
$8,718 USD
B+
Retailer 2
-
HK$70,345 HKD
$8,966 USD
View
B+
Retailer 3
-
HK$71,137 HKD
$9,067 USD
View
B+
Retailer 4
-
HK$73,200 HKD
$9,330 USD
View
B+
Retailer 5
-
HK$76,605 HKD
$9,764 USD
View
Final sale: no returns
B+
Retailer 6
-
HK$78,614 HKD
$10,020 USD
View
B+
Retailer 7
-
HK$78,849 HKD
$10,050 USD
View
B+
Retailer 8
-
HK$79,344 HKD
$10,113 USD
View
Retailer 9
-
HK$79,344 HKD
$10,113 USD
View
Price last confirmed 15 days ago
B+
Retailer 10
-
HK$88,256 HKD
$11,249 USD
View
B+
Retailer 11
-
HK$89,237 HKD
$11,374 USD
View
B+
Retailer 12
-
HK$95,006 HKD
£9,535 GBP
View
B+
Retailer 13
-
HK$124,668 HKD
$15,890 USD
View
B+
Retailer 14
-
HK$145,236 HKD
£14,576 GBP
View
B
Retailer 15
-
HK$146,134 HKD
€17,739 EUR
View
B+
Retailer 16
-
HK$168,887 HKD
ZAR 347,756 ZAR
View
B
Retailer 17
-
HK$203,188 HKD
$25,898 USD
View
B
Retailer 18
-
HK$220,990 HKD
$28,167 USD
View
Most Expensive
B
Taylor and Hart
Y9WOHQC · Oct 30
HK$251,321 HKD
$32,033 USD
View
18 more retailers have this diamond
Prices start from HK$68,399 HKDSave up to HK$182,922 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
4.00ct Heart
HK$68,399 HKD