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Heart|Lab Grown|IGI

12.28ct E VS1 Heart Lab Grown Diamond

ID • E/VS1 • IGI LG659441285

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG659441285

Diamond specifications and retailer prices

From HK$36,577 HKD
$4,662 USD
As of October 31, 2026
Save HK$98,160 HKD (73%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$223,053 HKD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 12.28ct lab-grown heart diamond

This 12.28ct lab-grown heart sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG659441285 or 659441285. Listed at 15 retailers as of October 31, 2026, with a 268% 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

12.28
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG659441285
Dimensions16.22 × 14.13 × 9.42 mm
L/W Ratio1.15
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.22 mm14.13 mm12.28 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG659441285
Side View
Table 56.0%Crown 36.1°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 58.1%

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$223,053 HKD|Low: HK$30,716 HKD|High: HK$223,053 HKD|Avg: HK$74,670 HKD
Brilliant Earth
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 31, 2026
Retailer 12HK$30,783 HKD
Retailer 3HK$36,577 HKD
Retailer 5HK$37,887 HKD
Retailer 9HK$37,895 HKD
Retailer 14HK$39,032 HKD
Retailer 11HK$49,302 HKD
Retailer 2HK$49,433 HKD
Retailer 8HK$58,640 HKD
Retailer 15HK$58,647 HKD
Retailer 13HK$70,705 HKD
Retailer 10HK$71,523 HKD
Retailer 6HK$85,840 HKD
Retailer 4HK$105,245 HKD
Retailer 7HK$134,736 HKD
Brilliant EarthHK$223,053 HKD

18 data points across 15 retailers

15 retailersHK$36,577 HKD to HK$134,736 HKD

Retailer 1
-
HK$30,783 HKD
£3,089 GBP
Price last confirmed 19 days ago
A
Retailer 2
-
HK$36,577 HKD
$4,662 USD
View
Final sale: no returns
Retailer 3
-
HK$37,887 HKD
$4,829 USD
View
Price last confirmed 20 days ago
A
Retailer 4
-
HK$37,895 HKD
$4,830 USD
View
B+
Retailer 5
-
HK$39,032 HKD
$4,975 USD
View
B+
Retailer 6
-
HK$49,302 HKD
$6,284 USD
View
B+
Retailer 7
-
HK$49,433 HKD
£4,961 GBP
View
B+
Retailer 8
-
HK$58,640 HKD
ZAR 120,746 ZAR
View
B+
Retailer 9
-
HK$58,647 HKD
$7,475 USD
View
B
Retailer 10
-
HK$70,705 HKD
$9,012 USD
View
Retailer 11
-
HK$71,523 HKD
A$14,025 AUD
View
Price last confirmed 9 days ago
B
Retailer 12
-
HK$85,840 HKD
$10,941 USD
View
B
Retailer 13
-
HK$105,245 HKD
$13,414 USD
View
B
Retailer 14
-
HK$134,736 HKD
$17,173 USD
View
Most Expensive
Brilliant Earth
11953179A · Oct 30
HK$223,053 HKD
$28,430 USD
View
Price under review
14 more retailers have this diamond
Prices start from HK$36,577 HKDSave up to HK$98,160 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
12.28ct Heart
HK$36,577 HKD