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Cushion|Lab Grown|IGI

1.55ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG825659979

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG825659979

Diamond specifications and retailer prices

From HK$5,767 HKD
$735 USD
As of October 29, 2026
Save HK$19,732 HKD (77%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$25,499 HKD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.55ct lab-grown cushion diamond

This 1.55ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825659979 or 825659979. Listed at 15 retailers as of October 29, 2026, with prices from HK$5,767 to HK$25,499, a HK$19,732 spread on the same certified stone. Brilliant Earth lists it at HK$25,499. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.8°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825659979
Dimensions8.34 × 5.97 × 4.04 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
8.34 mm5.97 mm1.55 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825659979
Side View
Table 60.0%Crown 30.8°Girdle: MED-THKPavilion 36°Culet: NoneDepth 67.7%

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 29
Current: HK$25,499 HKD|Low: HK$4,990 HKD|High: HK$31,854 HKD|Avg: HK$14,291 HKD|-20.0%
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
Retailer 15
October 30, 2026
Retailer 6HK$4,990 HKD
Retailer 15HK$5,767 HKD
Retailer 9HK$7,513 HKD
Retailer 8HK$7,728 HKD
Retailer 5HK$7,736 HKD
Retailer 11HK$8,575 HKD
Retailer 3HK$8,921 HKD
Retailer 14HK$11,635 HKD
Retailer 4HK$14,587 HKD
Retailer 12HK$16,198 HKD
Retailer 7HK$16,234 HKD
Retailer 2HK$17,927 HKD
Retailer 10HK$20,944 HKD
Retailer 13HK$20,987 HKD
Brilliant EarthHK$25,499 HKD

33 data points across 15 retailers

15 retailersHK$5,767 HKD to HK$25,499 HKD

Retailer 1
-
HK$4,990 HKD
$636 USD
Price last confirmed 14 days ago
A
Retailer 2
-
HK$5,767 HKD
$735 USD
View
A
Retailer 3
-
HK$7,513 HKD
€912 EUR
View
A
Retailer 4
-
HK$7,728 HKD
£776 GBP
View
A
Retailer 5
-
HK$7,736 HKD
$986 USD
View
A
Retailer 6
-
HK$8,575 HKD
ZAR 17,657 ZAR
View
A
Retailer 7
-
HK$8,921 HKD
$1,137 USD
View
A
Retailer 8
-
HK$11,635 HKD
$1,483 USD
View
B+
Retailer 9
-
HK$14,587 HKD
£1,464 GBP
View
B+
Retailer 10
-
HK$16,198 HKD
SGD 2,790 SGD
View
B+
Retailer 11
-
HK$16,234 HKD
$2,069 USD
View
B+
Retailer 12
-
HK$17,927 HKD
$2,285 USD
View
B+
Retailer 13
-
HK$20,944 HKD
£2,102 GBP
View
Retailer 14
-
HK$20,987 HKD
$2,675 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
21418429A · Oct 30
HK$25,499 HKD
$3,250 USD
View
14 more retailers have this diamond
Prices start from HK$5,767 HKDSave up to HK$19,732 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
1.55ct Cushion
HK$5,767 HKD