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Cushion|Lab Grown|IGI

1.28ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG826615134

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

Certificate IGI LG826615134

Diamond specifications and retailer prices

From HK$3,448 HKD
As of October 31, 2026
Save HK$3,096 HKD (47%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$9,257 HKD at Reve Diamonds · As of October 30, 2026
View at Reve 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG826615134 or 826615134. Listed at 14 retailers as of October 31, 2026, with a 90% 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
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826615134
Dimensions6.32 × 6.32 × 4.20 mm
L/W Ratio1.00
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
6.32 mm6.32 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826615134
Side View
Table 62.0%Crown 35.7°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 66.5%

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$3,448 HKD|Low: HK$1,834 HKD|High: HK$9,257 HKD|Avg: HK$4,673 HKD|+6.5%
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
Reve Diamonds
October 31, 2026
Retailer 5HK$1,834 HKD
Retailer 9HK$1,991 HKD
Retailer 12HK$3,080 HKD
Retailer 14HK$3,143 HKD
Retailer 10HK$3,323 HKD
Retailer 1HK$3,448 HKD
Retailer 8HK$3,778 HKD
Retailer 3HK$4,467 HKD
Retailer 7HK$4,961 HKD
Retailer 13HK$5,173 HKD
Retailer 2HK$5,376 HKD
Retailer 11HK$6,544 HKD
Retailer 6HK$7,054 HKD
Retailer 4HK$8,605 HKD
Reve DiamondsHK$9,257 HKD

38 data points across 15 retailers

14 retailersHK$3,448 HKD to HK$6,544 HKD

Retailer 1
-
HK$1,834 HKD
Price last confirmed 13 days ago
Retailer 2
-
HK$3,080 HKD
View
Price last confirmed 9 days ago
Retailer 3
-
HK$3,143 HKD
View
Price last confirmed 11 days ago
Retailer 4
-
HK$3,323 HKD
View
Price last confirmed 8 days ago
A
Retailer 5
-
HK$3,448 HKD
View
Retailer 6
-
HK$3,778 HKD
View
Price last confirmed 8 days ago
Retailer 7
-
HK$4,467 HKD
View
Price last confirmed 12 days ago
B+
Retailer 8
-
HK$4,961 HKD
View
Retailer 9
-
HK$5,173 HKD
View
Price last confirmed 10 days ago
Retailer 10
-
HK$5,376 HKD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
HK$6,544 HKD
View
Retailer 12
-
HK$7,054 HKD
View
Price last confirmed 9 days ago
Retailer 13
-
HK$8,605 HKD
View
Price last confirmed 19 days ago
Most Expensive
Reve Diamonds
48955B1E0 · Oct 30
HK$9,257 HKD
$1,181 USD
View
Price last confirmed 7 days ago
13 more retailers have this diamond
Prices start from HK$3,448 HKDSave up to HK$3,096 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$3,448 HKD