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Cushion|Lab Grown|IGI

5.28ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG780663589

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG780663589

Diamond specifications and retailer prices

From HK$43,569 HKD
As of November 2, 2026
Save HK$207,676 HKD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$251,245 HKD at With Clarity · As of November 3, 2026
View at With Clarity

About this 5.28ct lab-grown cushion diamond

This 5.28ct lab-grown cushion sits in the over five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780663589 or 780663589. Listed at 13 retailers as of November 2, 2026, with prices from HK$43,569 to HK$251,245, a HK$207,676 spread on the same certified stone. With Clarity lists it at HK$251,245. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.28
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663589
Dimensions11.36 × 9.42 × 6.23 mm
L/W Ratio1.21
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
11.36 mm9.42 mm5.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663589
Side View
Table 60.0%Crown 37°Girdle: MED-STKPavilion 35.9°Culet: NoneDepth 66.1%

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 2
Current: HK$59,637 HKD|Low: HK$43,569 HKD|High: HK$281,397 HKD|Avg: HK$109,045 HKD|-12.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
With Clarity
November 4, 2026
Retailer 12HK$43,569 HKD
Retailer 4HK$59,449 HKD
Retailer 1HK$59,637 HKD
Retailer 7HK$62,180 HKD
Retailer 9HK$72,889 HKD
Retailer 11HK$75,282 HKD
Retailer 5HK$77,605 HKD
Retailer 8HK$95,713 HKD
Retailer 6HK$127,592 HKD
Retailer 2HK$131,813 HKD
Retailer 10HK$145,575 HKD
Retailer 3HK$168,297 HKD
With ClarityHK$251,245 HKD

40 data points across 13 retailers

13 retailersHK$43,569 HKD to HK$251,245 HKD

A
Cheapest Retailer
-
HK$43,569 HKD
A
Retailer 2
-
HK$59,449 HKD
View
A
Retailer 3
-
HK$59,637 HKD
View
A
Retailer 4
-
HK$62,180 HKD
View
A
Retailer 5
-
HK$72,889 HKD
View
A
Retailer 6
-
HK$75,282 HKD
View
A
Retailer 7
-
HK$77,605 HKD
View
A
Retailer 8
-
HK$95,713 HKD
View
B+
Retailer 9
-
HK$127,592 HKD
View
B+
Retailer 10
-
HK$131,813 HKD
View
B+
Retailer 11
-
HK$145,575 HKD
View
B+
Retailer 12
-
HK$168,297 HKD
View
Most Expensive
B
With Clarity
780663589 · Nov 3
HK$251,245 HKD
$32,022 USD
View
12 more retailers have this diamond
Prices start from HK$43,569 HKDSave up to HK$207,676 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
5.28ct Cushion
HK$43,569 HKD