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Heart|Lab Grown|IGI

3.18ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG787614458

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG787614458

Diamond specifications and retailer prices

From HK$90,055 HKD
As of November 4, 2026
Save HK$69,862 HKD (44%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$243,320 HKD at Cape Diamonds · As of November 3, 2026
View at Cape Diamonds

About this 3.18ct lab-grown heart diamond

This 3.18ct 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 LG787614458 or 787614458. Listed at 19 retailers as of November 4, 2026, with a 78% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.18
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787614458
Dimensions10.20 × 8.53 × 6.06 mm
L/W Ratio1.20
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.20 mm8.53 mm3.18 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787614458
Side View
Table 63.0%Crown 37.9°Girdle: STK-THKPavilion 39.9°Culet: NoneDepth 59.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: HK$243,320 HKD|Low: HK$87,027 HKD|High: HK$404,742 HKD|Avg: HK$170,126 HKD|-7.0%
Cape 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
Retailer 16
November 5, 2026
Retailer 6HK$90,055 HKD
Retailer 12HK$93,656 HKD
Retailer 14HK$96,300 HKD
Retailer 11HK$96,308 HKD
Retailer 7HK$97,900 HKD
Retailer 4HK$100,858 HKD
Retailer 15HK$104,459 HKD
Retailer 10HK$110,837 HKD
Retailer 2HK$123,483 HKD
Retailer 13HK$128,324 HKD
Retailer 9HK$159,917 HKD
Retailer 8HK$192,341 HKD
Cape DiamondsHK$243,320 HKD
Retailer 16HK$305,304 HKD
Retailer 3HK$307,312 HKD
Retailer 5HK$368,324 HKD

37 data points across 16 retailers

19 retailersHK$90,055 HKD to HK$159,917 HKD

B+
Cheapest Retailer
-
HK$90,055 HKD
B+
Retailer 2
-
HK$93,656 HKD
View
B+
Retailer 3
-
HK$96,300 HKD
View
B+
Retailer 4
-
HK$96,308 HKD
View
B
Retailer 5
-
HK$97,900 HKD
View
B
Retailer 6
-
HK$100,858 HKD
View
Final sale: no returns
B
Retailer 7
-
HK$104,459 HKD
View
Retailer 8
-
HK$104,459 HKD
View
Price last confirmed 20 days ago
B+
Retailer 9
-
HK$104,741 HKD
View
B
Retailer 10
-
HK$110,837 HKD
View
B
Retailer 11
-
HK$123,483 HKD
View
Retailer 12
-
HK$128,324 HKD
View
Price last confirmed 16 days ago
B
Retailer 13
-
HK$159,917 HKD
View
Retailer 14
-
HK$182,754 HKD
View
Price under review
Retailer 15
-
HK$192,341 HKD
View
Price under review
Most Expensive
Cape Diamonds
cert_787614458 · Nov 3
HK$243,320 HKD
ZAR 501,052 ZAR
View
Price under review
15 more retailers have this diamond
Prices start from HK$90,055 HKDSave up to HK$69,862 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.

B+
3.18ct Heart
HK$90,055 HKD