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Heart|Lab Grown|IGI

3.71ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG804660377

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG804660377

Diamond specifications and retailer prices

From HK$22,227 HKD
$2,833 USD
As of October 30, 2026
Save HK$131,157 HKD (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$153,383 HKD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.71ct lab-grown heart diamond

This 3.71ct 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 LG804660377 or 804660377. Listed at 12 retailers as of October 30, 2026, with prices from HK$22,227 to HK$153,383, a HK$131,157 spread on the same certified stone. Do Amore Diamonds lists it at HK$153,383. 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

3.71
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804660377
Dimensions9.53 × 10.62 × 6.35 mm
L/W Ratio1.11
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
9.53 mm10.62 mm3.71 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804660377
Side View
Table 61.0%Crown 34.2°Girdle: MED-THKPavilion 40.6°Culet: NoneDepth 59.8%

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$153,383 HKD|Low: HK$22,227 HKD|High: HK$171,664 HKD|Avg: HK$67,318 HKD|-10.6%
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
Retailer 14
Retailer 15
October 30, 2026
Retailer 8HK$22,227 HKD
Retailer 15HK$24,259 HKD
Retailer 11HK$25,326 HKD
Retailer 13HK$27,107 HKD
Retailer 3HK$28,150 HKD
Retailer 4HK$29,327 HKD
Retailer 14HK$35,667 HKD
Retailer 12HK$37,157 HKD
Retailer 10HK$40,217 HKD
Retailer 5HK$56,291 HKD
Retailer 9HK$72,737 HKD
Retailer 2HK$97,679 HKD
Retailer 7HK$120,629 HKD
Retailer 6HK$146,212 HKD
Do Amore DiamondsHK$153,383 HKD

26 data points across 15 retailers

12 retailersHK$22,227 HKD to HK$153,383 HKD

A
Cheapest Retailer
-
HK$22,227 HKD
$2,833 USD
A
Retailer 2
-
HK$24,259 HKD
$3,092 USD
View
A
Retailer 3
-
HK$25,326 HKD
$3,228 USD
View
A
Retailer 4
-
HK$27,107 HKD
$3,455 USD
View
A
Retailer 5
-
HK$28,150 HKD
$3,588 USD
View
A
Retailer 6
-
HK$29,327 HKD
$3,738 USD
View
Final sale: no returns
A
Retailer 7
-
HK$35,667 HKD
$4,546 USD
View
B+
Retailer 8
-
HK$37,157 HKD
$4,736 USD
View
B+
Retailer 9
-
HK$40,217 HKD
$5,126 USD
View
B
Retailer 10
-
HK$72,737 HKD
£7,300 GBP
View
B+
Retailer 11
-
HK$97,679 HKD
$12,450 USD
View
Most Expensive
B
Do Amore Diamonds
27-FDEF14AD4 · Oct 31
HK$153,383 HKD
$19,550 USD
View
11 more retailers have this diamond
Prices start from HK$22,227 HKDSave up to HK$131,157 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
3.71ct Heart
HK$22,227 HKD