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Cushion|Lab Grown|IGI

1.28ct E VVS1 Cushion Lab Grown Diamond

EX • E/VVS1 • IGI LG723540900

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG723540900

Diamond specifications and retailer prices

From HK$2,087 HKD
$266 USD
As of October 30, 2026
Save HK$11,800 HKD (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$13,887 HKD at Brilliant Earth · As of October 31, 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 E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG723540900 or 723540900. Listed at 16 retailers as of October 30, 2026, with prices from HK$2,087 to HK$13,887, a HK$11,800 spread on the same certified stone. Brilliant Earth lists it at HK$13,887. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
E
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG723540900
Dimensions5.80 × 5.80 × 3.99 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
5.80 mm5.80 mm1.28 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG723540900
Side View
Table 63.0%Crown 31.5°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 68.8%

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 30
Current: HK$13,887 HKD|Low: HK$2,087 HKD|High: HK$13,887 HKD|Avg: HK$5,361 HKD|+10.6%
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 1, 2026
Retailer 5HK$2,087 HKD
Retailer 3HK$2,314 HKD
Retailer 8HK$2,845 HKD
Retailer 13HK$3,123 HKD
Retailer 9HK$3,981 HKD
Retailer 7HK$4,185 HKD
Retailer 4HK$4,213 HKD
Retailer 2HK$4,348 HKD
Retailer 6HK$4,896 HKD
Retailer 10HK$5,650 HKD
Retailer 12HK$5,924 HKD
Retailer 14HK$7,453 HKD
Retailer 11HK$9,336 HKD
Brilliant EarthHK$13,887 HKD

41 data points across 14 retailers

16 retailersHK$2,087 HKD to HK$13,887 HKD

A
Cheapest Retailer
-
HK$2,087 HKD
$266 USD
Final sale: no returns
A
Retailer 2
-
HK$2,314 HKD
$295 USD
View
A
Retailer 3
-
HK$2,845 HKD
£286 GBP
View
A
Retailer 4
-
HK$3,123 HKD
$398 USD
View
A
Retailer 5
-
HK$3,981 HKD
ZAR 8,197 ZAR
View
A
Retailer 6
-
HK$4,185 HKD
€508 EUR
View
A
Retailer 7
-
HK$4,213 HKD
$537 USD
View
A
Retailer 8
-
HK$4,348 HKD
£436 GBP
View
A
Retailer 9
-
HK$4,896 HKD
$624 USD
View
B+
Retailer 10
-
HK$5,650 HKD
A$1,108 AUD
View
B+
Retailer 11
-
HK$5,924 HKD
$755 USD
View
Retailer 12
-
HK$7,453 HKD
$950 USD
View
Price last confirmed 26 days ago
B+
Retailer 13
-
HK$7,856 HKD
$1,001 USD
View
B
Retailer 14
-
HK$9,336 HKD
£937 GBP
View
B
Retailer 15
-
HK$10,320 HKD
$1,315 USD
View
Most Expensive
B
Brilliant Earth
21313249A · Oct 31
HK$13,887 HKD
$1,770 USD
View
15 more retailers have this diamond
Prices start from HK$2,087 HKDSave up to HK$11,800 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$2,087 HKD