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Cushion|Lab Grown|IGI

1.28ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG831687239

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG831687239

Diamond specifications and retailer prices

From HK$1,875 HKD
As of November 4, 2026
Save HK$12,153 HKD (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$14,028 HKD at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

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 LG831687239 or 831687239. Listed at 16 retailers as of November 4, 2026, with prices from HK$1,875 to HK$14,028, a HK$12,153 spread on the same certified stone. Helzberg Diamonds lists it at HK$14,028. 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 angle34.8°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831687239
Dimensions7.72 × 5.53 × 3.71 mm
L/W Ratio1.40
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
7.72 mm5.53 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831687239
Side View
Table 60.0%Crown 34.8°Girdle: STK-THKPavilion 35.2°Culet: NoneDepth 67.1%

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: Nov 4
Current: HK$14,028 HKD|Low: HK$1,789 HKD|High: HK$14,028 HKD|Avg: HK$5,858 HKD
Helzberg 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 3HK$1,875 HKD
Retailer 9HK$2,362 HKD
Retailer 14HK$3,523 HKD
Retailer 4HK$3,570 HKD
Retailer 12HK$3,586 HKD
Retailer 2HK$3,805 HKD
Retailer 15HK$4,001 HKD
Retailer 5HK$5,045 HKD
Retailer 10HK$5,076 HKD
Retailer 11HK$5,445 HKD
Retailer 6HK$6,794 HKD
Retailer 8HK$7,093 HKD
Retailer 16HK$7,885 HKD
Retailer 13HK$8,324 HKD
Retailer 7HK$10,278 HKD
Helzberg DiamondsHK$14,028 HKD

14 data points across 16 retailers

16 retailersHK$1,875 HKD to HK$14,028 HKD

A
Cheapest Retailer
-
HK$1,875 HKD
Final sale: no returns
A
Retailer 2
-
HK$2,362 HKD
View
A
Retailer 3
-
HK$3,523 HKD
View
A
Retailer 4
-
HK$3,570 HKD
View
A
Retailer 5
-
HK$3,586 HKD
View
A
Retailer 6
-
HK$3,805 HKD
View
A
Retailer 7
-
HK$4,001 HKD
View
A
Retailer 8
-
HK$5,045 HKD
View
A
Retailer 9
-
HK$5,076 HKD
View
B+
Retailer 10
-
HK$5,445 HKD
View
B+
Retailer 11
-
HK$6,794 HKD
View
B+
Retailer 12
-
HK$7,093 HKD
View
Retailer 13
-
HK$7,885 HKD
View
Price last confirmed 8 days ago
B+
Retailer 14
-
HK$8,324 HKD
View
B
Retailer 15
-
HK$10,278 HKD
View
Most Expensive
B
Helzberg Diamonds
ZXZOJHMONIJP · Nov 4
HK$14,028 HKD
$1,788 USD
View
15 more retailers have this diamond
Prices start from HK$1,875 HKDSave up to HK$12,153 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$1,875 HKD