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Cushion|Lab Grown|IGI

1.50ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG798603812

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG798603812

Diamond specifications and retailer prices

From HK$3,813 HKD
$486 USD
As of October 30, 2026
Save HK$18,008 HKD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$21,821 HKD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.5ct lab-grown cushion diamond

This 1.5ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG798603812 or 798603812. Listed at 19 retailers as of October 27, 2026, with prices from HK$3,813 to HK$21,821, a HK$18,008 spread on the same certified stone. Queensmith lists it at HK$21,821. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG798603812
Dimensions7.70 × 6.02 × 3.86 mm
L/W Ratio1.28
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
7.70 mm6.02 mm1.50 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG798603812
Side View
Table 62.0%Crown 34.4°Girdle: MED-STKPavilion 34.9°Culet: NoneDepth 64.1%

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: Oct 30
Current: HK$6,979 HKD|Low: HK$3,813 HKD|High: HK$22,988 HKD|Avg: HK$10,350 HKD|-8.0%
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
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 9HK$3,813 HKD
Retailer 7HK$4,229 HKD
Retailer 8HK$5,665 HKD
Retailer 15HK$5,688 HKD
Retailer 10HK$6,442 HKD
Retailer 2HK$6,685 HKD
Retailer 1HK$6,979 HKD
Retailer 14HK$7,264 HKD
Retailer 4HK$8,246 HKD
Retailer 13HK$9,842 HKD
Retailer 17HK$10,215 HKD
Retailer 11HK$12,005 HKD
Retailer 6HK$13,838 HKD
Retailer 3HK$15,235 HKD
Retailer 16HK$15,544 HKD
Retailer 5HK$15,817 HKD
Retailer 12HK$18,987 HKD

40 data points across 17 retailers

19 retailersHK$3,813 HKD to HK$21,821 HKD

A
Cheapest Retailer
-
HK$3,813 HKD
$486 USD
Final sale: no returns
A
Retailer 2
-
HK$4,229 HKD
$539 USD
View
A
Retailer 3
-
HK$5,665 HKD
$722 USD
View
A
Retailer 4
-
HK$5,688 HKD
$725 USD
View
A
Retailer 5
-
HK$6,442 HKD
€782 EUR
View
A
Retailer 6
-
HK$6,685 HKD
$852 USD
View
A
Retailer 7
-
HK$6,979 HKD
£700 GBP
View
A
Retailer 8
-
HK$7,264 HKD
ZAR 14,958 ZAR
View
A
Retailer 9
-
HK$8,246 HKD
$1,051 USD
View
A
Retailer 10
-
HK$9,842 HKD
A$1,930 AUD
View
A
Retailer 11
-
HK$10,215 HKD
$1,302 USD
View
B+
Retailer 12
-
HK$12,005 HKD
A$2,354 AUD
View
B+
Retailer 13
-
HK$13,181 HKD
$1,680 USD
View
B+
Retailer 14
-
HK$13,838 HKD
$1,764 USD
View
B+
Retailer 15
-
HK$15,235 HKD
$1,942 USD
View
B+
Retailer 16
-
HK$15,544 HKD
£1,560 GBP
View
B+
Retailer 17
-
HK$15,817 HKD
$2,016 USD
View
B
Retailer 18
-
HK$18,987 HKD
$2,420 USD
View
Most Expensive
B
Queensmith
LG798603812 · Oct 27
HK$21,821 HKD
£2,190 GBP
View
18 more retailers have this diamond
Prices start from HK$3,813 HKDSave up to HK$18,008 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
1.50ct Cushion
HK$3,813 HKD