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Heart|Lab Grown|IGI

15.35ct F SI1 Heart Lab Grown Diamond

ID • F/SI1 • IGI LG638499200

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG638499200

Diamond specifications and retailer prices

From HK$32,914 HKD
$4,195 USD
As of November 1, 2026
Save HK$121,493 HKD (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$231,695 HKD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 15.35ct lab-grown heart diamond

This 15.35ct lab-grown heart sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG638499200 or 638499200. Listed at 16 retailers as of October 31, 2026, with a 369% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

15.35
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG638499200
Dimensions17.69 × 15.51 × 9.62 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.69 mm15.51 mm15.35 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG638499200
Side View
Table 59.0%Crown 35.9°Girdle: MED-THKPavilion 36.8°Culet: NoneDepth 54.4%

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 1
Current: HK$231,695 HKD|Low: HK$18,132 HKD|High: HK$231,695 HKD|Avg: HK$53,824 HKD|+37.6%
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
Retailer 16
November 2, 2026
Retailer 8HK$28,387 HKD
Retailer 5HK$32,914 HKD
Retailer 16HK$33,675 HKD
Retailer 2HK$34,631 HKD
Retailer 10HK$35,292 HKD
Retailer 4HK$39,066 HKD
Retailer 12HK$39,427 HKD
Retailer 15HK$41,019 HKD
Retailer 13HK$50,835 HKD
Retailer 11HK$53,887 HKD
Retailer 9HK$56,100 HKD
Retailer 7HK$57,232 HKD
Retailer 14HK$100,838 HKD
Retailer 6HK$110,803 HKD
Retailer 3HK$154,407 HKD
Do Amore DiamondsHK$231,695 HKD

29 data points across 16 retailers

16 retailersHK$32,914 HKD to HK$154,407 HKD

Retailer 1
-
HK$28,387 HKD
$3,618 USD
Price last confirmed 20 days ago
B+
Retailer 2
-
HK$32,914 HKD
$4,195 USD
View
B+
Retailer 3
-
HK$33,675 HKD
$4,292 USD
View
B+
Retailer 4
-
HK$34,631 HKD
£3,475 GBP
View
B+
Retailer 5
-
HK$35,292 HKD
$4,498 USD
View
B+
Retailer 6
-
HK$39,066 HKD
$4,979 USD
View
B+
Retailer 7
-
HK$39,427 HKD
$5,025 USD
View
B+
Retailer 8
-
HK$41,019 HKD
$5,228 USD
View
B
Retailer 9
-
HK$50,835 HKD
$6,479 USD
View
B
Retailer 10
-
HK$53,887 HKD
$6,868 USD
View
B
Retailer 11
-
HK$56,100 HKD
£5,630 GBP
View
B+
Retailer 12
-
HK$57,232 HKD
$7,294 USD
View
B
Retailer 13
-
HK$100,838 HKD
$12,852 USD
View
B
Retailer 14
-
HK$110,803 HKD
$14,122 USD
View
B
Retailer 15
-
HK$154,407 HKD
$19,680 USD
View
Most Expensive
Do Amore Diamonds
27-2023659BA · Nov 2
HK$231,695 HKD
$29,530 USD
View
Price under review
15 more retailers have this diamond
Prices start from HK$32,914 HKDSave up to HK$121,493 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+
15.35ct Heart
HK$32,914 HKD