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Heart|Lab Grown|IGI

1.28ct D VVS1 Heart Lab Grown Diamond

EX • D/VVS1 • IGI LG774670800

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG774670800

Diamond specifications and retailer prices

From HK$2,189 HKD
As of November 4, 2026
Save HK$9,156 HKD (81%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: HK$11,847 HKD at Brilliant Earth · As of October 21, 2026
View at Brilliant Earth

About this 1.28ct lab-grown heart diamond

This 1.28ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG774670800 or 774670800. Listed at 25 retailers as of November 4, 2026, with a 418% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG774670800
Dimensions6.97 × 7.33 × 4.47 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.97 mm7.33 mm1.28 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG774670800
Side View
Table 60.0%Crown 35.3°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.0%

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: Nov 4
Current: HK$11,847 HKD|Low: HK$2,103 HKD|High: HK$12,239 HKD|Avg: HK$5,660 HKD|-3.2%
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
November 5, 2026
Retailer 13HK$2,189 HKD
Retailer 6HK$2,448 HKD
Retailer 3HK$2,715 HKD
Retailer 14HK$2,715 HKD
Retailer 11HK$3,962 HKD
Retailer 10HK$4,449 HKD
Retailer 8HK$4,676 HKD
Retailer 5HK$4,692 HKD
Retailer 2HK$4,707 HKD
Retailer 7HK$6,661 HKD
Retailer 12HK$8,348 HKD
Retailer 4HK$8,709 HKD
Retailer 9HK$10,890 HKD
Brilliant EarthHK$11,847 HKD

44 data points across 14 retailers

25 retailersHK$2,189 HKD to HK$11,345 HKD

Retailer 1
-
HK$2,189 HKD
Price last confirmed 36 days ago
A
Retailer 2
-
HK$2,189 HKD
View
A
Retailer 3
-
HK$2,448 HKD
View
Final sale: no returns
Retailer 4
-
HK$2,542 HKD
View
Price last confirmed 37 days ago
Retailer 5
-
HK$2,683 HKD
View
Price last confirmed 39 days ago
A
Retailer 6
-
HK$2,715 HKD
View
Retailer 7
-
HK$2,715 HKD
View
Price last confirmed 11 days ago
A
Retailer 8
-
HK$3,013 HKD
View
A
Retailer 9
-
HK$3,648 HKD
View
A
Retailer 10
-
HK$3,962 HKD
View
B+
Retailer 11
-
HK$4,449 HKD
View
B+
Retailer 12
-
HK$4,676 HKD
View
B+
Retailer 13
-
HK$4,692 HKD
View
B+
Retailer 14
-
HK$4,707 HKD
View
B+
Retailer 15
-
HK$5,225 HKD
View
B+
Retailer 16
-
HK$5,743 HKD
View
B+
Retailer 17
-
HK$6,661 HKD
View
Retailer 18
-
HK$6,928 HKD
View
Price last confirmed 10 days ago
B
Retailer 19
-
HK$8,348 HKD
View
Retailer 20
-
HK$8,709 HKD
View
Price last confirmed 7 days ago
Retailer 21
-
HK$8,732 HKD
View
Price last confirmed 36 days ago
B
Retailer 22
-
HK$9,125 HKD
View
B
Retailer 23
-
HK$10,890 HKD
View
B
Retailer 24
-
HK$11,345 HKD
View
Most Expensive
Brilliant Earth
18180896A · Oct 21
HK$11,847 HKD
$1,510 USD
View
Price last confirmed 14 days ago
24 more retailers have this diamond
Prices start from HK$2,189 HKDSave up to HK$9,156 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
1.28ct Heart
HK$2,189 HKD