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Cushion|Lab Grown|IGI

1.50ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG818678241

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818678241

Diamond specifications and retailer prices

From HK$4,825 HKD
$615 USD
As of October 30, 2026
Save HK$18,626 HKD (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$23,451 HKD at With Clarity · As of October 31, 2026
View at With Clarity

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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818678241 or 818678241. Listed at 16 retailers as of October 30, 2026, with prices from HK$4,825 to HK$23,451, a HK$18,626 spread on the same certified stone. With Clarity lists it at HK$23,451. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818678241
Dimensions8.26 × 5.85 × 3.84 mm
L/W Ratio1.41
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
8.26 mm5.85 mm1.50 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818678241
Side View
Table 56.0%Crown 33.8°Girdle: MED-STKPavilion 35°Culet: NoneDepth 65.6%

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$22,290 HKD|Low: HK$4,825 HKD|High: HK$23,451 HKD|Avg: HK$11,921 HKD
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
With Clarity
November 1, 2026
Retailer 7HK$4,825 HKD
Retailer 8HK$5,645 HKD
Retailer 15HK$5,825 HKD
Retailer 13HK$6,394 HKD
Retailer 14HK$7,030 HKD
Retailer 6HK$7,155 HKD
Retailer 9HK$7,991 HKD
Retailer 12HK$8,497 HKD
Retailer 3HK$9,175 HKD
Retailer 10HK$12,438 HKD
Retailer 2HK$17,190 HKD
Retailer 5HK$17,323 HKD
Retailer 11HK$18,096 HKD
Retailer 1HK$22,290 HKD
Retailer 4HK$22,319 HKD
With ClarityHK$23,451 HKD

5 data points across 16 retailers

16 retailersHK$4,825 HKD to HK$23,451 HKD

A
Cheapest Retailer
-
HK$4,825 HKD
$615 USD
Final sale: no returns
A
Retailer 2
-
HK$5,645 HKD
£567 GBP
View
A
Retailer 3
-
HK$5,825 HKD
View
A
Retailer 4
-
HK$6,394 HKD
$815 USD
View
A
Retailer 5
-
HK$7,030 HKD
$896 USD
View
A
Retailer 6
-
HK$7,155 HKD
$912 USD
View
A
Retailer 7
-
HK$7,991 HKD
€970 EUR
View
A
Retailer 8
-
HK$8,497 HKD
$1,083 USD
View
A
Retailer 9
-
HK$9,175 HKD
ZAR 18,893 ZAR
View
B+
Retailer 10
-
HK$12,438 HKD
A$2,439 AUD
View
B+
Retailer 11
-
HK$17,190 HKD
$2,191 USD
View
B+
Retailer 12
-
HK$17,323 HKD
$2,208 USD
View
B
Retailer 13
-
HK$18,096 HKD
$2,307 USD
View
B
Retailer 14
-
HK$22,290 HKD
£2,237 GBP
View
B
Retailer 15
-
HK$22,319 HKD
£2,240 GBP
View
Most Expensive
B
With Clarity
818678241 · Oct 31
HK$23,451 HKD
$2,989 USD
View
15 more retailers have this diamond
Prices start from HK$4,825 HKDSave up to HK$18,626 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$4,825 HKD