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Cushion|Lab Grown|IGI

1.28ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG794641717

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG794641717

Diamond specifications and retailer prices

From HK$1,954 HKD
As of November 4, 2026
Save HK$7,979 HKD (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$12,475 HKD at Brilliant Earth · As of October 24, 2026
View at Brilliant Earth

About this 1.28ct lab-grown cushion diamond

This 1.28ct lab-grown cushion 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 LG794641717 or 794641717. Listed at 17 retailers as of November 4, 2026, with a 408% 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794641717
Dimensions6.35 × 6.31 × 4.12 mm
L/W Ratio1.01
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
6.35 mm6.31 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794641717
Side View
Table 63.0%Crown 33.6°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 65.3%

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$2,464 HKD|Low: HK$1,930 HKD|High: HK$9,933 HKD|Avg: HK$5,081 HKD|-0.3%
Retailer 1
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
November 4, 2026
Retailer 9HK$1,954 HKD
Retailer 7HK$2,142 HKD
Retailer 1HK$2,464 HKD
Retailer 14HK$3,546 HKD
Retailer 2HK$3,695 HKD
Retailer 12HK$3,742 HKD
Retailer 8HK$3,994 HKD
Retailer 15HK$5,076 HKD
Retailer 10HK$5,304 HKD
Retailer 11HK$5,869 HKD
Retailer 5HK$7,383 HKD
Retailer 6HK$8,183 HKD
Retailer 4HK$8,489 HKD
Retailer 13HK$8,685 HKD
Retailer 3HK$9,933 HKD

26 data points across 15 retailers

17 retailersHK$1,954 HKD to HK$9,933 HKD

A
Cheapest Retailer
-
HK$1,954 HKD
Final sale: no returns
Retailer 2
-
HK$2,142 HKD
View
Price last confirmed 11 days ago
A
Retailer 3
-
HK$2,464 HKD
View
A
Retailer 4
-
HK$3,546 HKD
View
A
Retailer 5
-
HK$3,695 HKD
View
A
Retailer 6
-
HK$3,742 HKD
View
A
Retailer 7
-
HK$3,994 HKD
View
B+
Retailer 8
-
HK$5,076 HKD
View
A
Retailer 9
-
HK$5,304 HKD
View
B+
Retailer 10
-
HK$5,869 HKD
View
B+
Retailer 11
-
HK$7,383 HKD
View
B+
Retailer 12
-
HK$8,183 HKD
View
B
Retailer 13
-
HK$8,489 HKD
View
B+
Retailer 14
-
HK$8,685 HKD
View
Retailer 15
-
HK$9,588 HKD
View
Price last confirmed 115 days ago
B
Retailer 16
-
HK$9,933 HKD
View
Most Expensive
Brilliant Earth
19355098A · Oct 24
HK$12,475 HKD
$1,590 USD
View
Price last confirmed 11 days ago
16 more retailers have this diamond
Prices start from HK$1,954 HKDSave up to HK$7,979 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 Cushion
HK$1,954 HKD