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Cushion|Lab Grown|IGI

1.50ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG665408906

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG665408906

Diamond specifications and retailer prices

From HK$5,108 HKD
$651 USD
As of October 31, 2026
Save HK$29,178 HKD (85%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$34,286 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 LG665408906 or 665408906. Listed at 20 retailers as of October 31, 2026, with prices from HK$5,108 to HK$34,286, a HK$29,178 spread on the same certified stone. Brilliant Earth lists it at HK$34,286. 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 angle35.9°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665408906
Dimensions7.79 × 6.13 × 4.08 mm
L/W Ratio1.27
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
7.79 mm6.13 mm1.50 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665408906
Side View
Table 62.0%Crown 35.9°Girdle: MED-THKPavilion 37.4°Culet: NoneDepth 66.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: HK$34,286 HKD|Low: HK$5,053 HKD|High: HK$34,286 HKD|Avg: HK$13,841 HKD|+0.2%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 15HK$5,108 HKD
Retailer 5HK$5,657 HKD
Retailer 17HK$6,669 HKD
Retailer 4HK$7,320 HKD
Retailer 3HK$8,583 HKD
Retailer 6HK$8,693 HKD
Retailer 2HK$8,765 HKD
Retailer 16HK$9,721 HKD
Retailer 12HK$9,894 HKD
Retailer 7HK$12,851 HKD
Retailer 14HK$13,178 HKD
Retailer 10HK$16,500 HKD
Retailer 11HK$17,982 HKD
Retailer 9HK$18,314 HKD
Retailer 13HK$18,905 HKD
Retailer 8HK$18,914 HKD
Retailer 18HK$20,948 HKD
Retailer 19HK$24,691 HKD
Brilliant EarthHK$34,286 HKD

37 data points across 19 retailers

20 retailersHK$5,108 HKD to HK$34,286 HKD

A
Cheapest Retailer
-
HK$5,108 HKD
$651 USD
Final sale: no returns
Retailer 2
-
HK$5,657 HKD
$721 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
HK$6,669 HKD
$850 USD
View
A
Retailer 4
-
HK$7,320 HKD
$933 USD
View
A
Retailer 5
-
HK$8,583 HKD
$1,094 USD
View
A
Retailer 6
-
HK$8,693 HKD
$1,108 USD
View
A
Retailer 7
-
HK$8,765 HKD
£880 GBP
View
A
Retailer 8
-
HK$9,721 HKD
ZAR 20,017 ZAR
View
A
Retailer 9
-
HK$9,894 HKD
€1,201 EUR
View
B+
Retailer 10
-
HK$12,851 HKD
$1,638 USD
View
B+
Retailer 11
-
HK$13,178 HKD
A$2,584 AUD
View
B+
Retailer 12
-
HK$16,500 HKD
£1,656 GBP
View
B+
Retailer 13
-
HK$17,982 HKD
$2,292 USD
View
B+
Retailer 14
-
HK$18,314 HKD
$2,334 USD
View
B+
Retailer 15
-
HK$18,905 HKD
A$3,707 AUD
View
B
Retailer 16
-
HK$18,914 HKD
$2,411 USD
View
Retailer 17
-
HK$20,948 HKD
$2,670 USD
View
Price last confirmed 13 days ago
B
Retailer 18
-
HK$24,691 HKD
£2,478 GBP
View
B
Retailer 19
-
HK$26,158 HKD
$3,334 USD
View
Most Expensive
B
Brilliant Earth
14720158A · Oct 31
HK$34,286 HKD
$4,370 USD
View
19 more retailers have this diamond
Prices start from HK$5,108 HKDSave up to HK$29,178 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$5,108 HKD