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Heart|Lab Grown|IGI

4.05ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG665423550

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG665423550

Diamond specifications and retailer prices

From HK$27,272 HKD
$3,476 USD
As of October 31, 2026
Save HK$71,284 HKD (72%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$98,556 HKD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 4.05ct lab-grown heart diamond

This 4.05ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG665423550 or 665423550. Listed at 22 retailers as of October 31, 2026, with prices from HK$27,272 to HK$98,556, a HK$71,284 spread on the same certified stone. Taylor and Hart lists it at HK$98,556. 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

4.05
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.8°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665423550
Dimensions10.65 × 9.71 × 6.47 mm
L/W Ratio1.10
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
10.65 mm9.71 mm4.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665423550
Side View
Table 62.0%Crown 41.8°Girdle: MED-STKPavilion 40.1°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 31
Current: HK$37,491 HKD|Low: HK$27,272 HKD|High: HK$132,338 HKD|Avg: HK$65,685 HKD|-24.6%
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
Taylor and Hart
November 1, 2026
Retailer 3HK$27,272 HKD
Retailer 16HK$28,284 HKD
Retailer 12HK$29,500 HKD
Retailer 2HK$32,839 HKD
Retailer 1HK$37,491 HKD
Retailer 6HK$39,770 HKD
Retailer 14HK$40,421 HKD
Retailer 9HK$44,946 HKD
Retailer 15HK$45,317 HKD
Retailer 11HK$60,134 HKD
Retailer 4HK$67,755 HKD
Retailer 13HK$72,010 HKD
Retailer 10HK$78,065 HKD
Retailer 5HK$78,364 HKD
Retailer 8HK$84,344 HKD
Retailer 7HK$95,006 HKD
Taylor and HartHK$98,556 HKD

37 data points across 17 retailers

22 retailersHK$27,272 HKD to HK$98,556 HKD

A
Cheapest Retailer
-
HK$27,272 HKD
$3,476 USD
Final sale: no returns
A
Retailer 2
-
HK$28,284 HKD
$3,605 USD
View
A
Retailer 3
-
HK$29,500 HKD
$3,760 USD
View
A
Retailer 4
-
HK$32,839 HKD
View
Retailer 5
-
HK$33,281 HKD
$4,242 USD
View
Price last confirmed 15 days ago
Retailer 6
-
HK$34,882 HKD
$4,446 USD
View
Price last confirmed 33 days ago
A
Retailer 7
-
HK$37,491 HKD
£3,763 GBP
View
Retailer 8
-
HK$38,609 HKD
$4,921 USD
View
Price last confirmed 28 days ago
Retailer 9
-
HK$38,609 HKD
$4,921 USD
View
Price last confirmed 15 days ago
A
Retailer 10
-
HK$39,770 HKD
$5,069 USD
View
A
Retailer 11
-
HK$40,421 HKD
$5,152 USD
View
A
Retailer 12
-
HK$44,946 HKD
€5,456 EUR
View
A
Retailer 13
-
HK$45,317 HKD
$5,776 USD
View
Retailer 14
-
HK$48,243 HKD
$6,149 USD
View
Price last confirmed 15 days ago
A
Retailer 15
-
HK$60,134 HKD
ZAR 123,822 ZAR
View
B+
Retailer 16
-
HK$67,755 HKD
$8,636 USD
View
B+
Retailer 17
-
HK$72,010 HKD
£7,227 GBP
View
B+
Retailer 18
-
HK$78,065 HKD
$9,950 USD
View
B+
Retailer 19
-
HK$78,364 HKD
$9,988 USD
View
Retailer 20
-
HK$84,344 HKD
A$16,539 AUD
View
Price last confirmed 9 days ago
B+
Retailer 21
-
HK$95,006 HKD
SGD 16,364 SGD
View
Most Expensive
B+
Taylor and Hart
JPUALNZ · Oct 31
HK$98,556 HKD
$12,562 USD
View
21 more retailers have this diamond
Prices start from HK$27,272 HKDSave up to HK$71,284 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
4.05ct Heart
HK$27,272 HKD