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Cushion|Lab Grown|IGI

1.38ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG799648028

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG799648028

Diamond specifications and retailer prices

From HK$3,994 HKD
$509 USD
As of November 1, 2026
Save HK$16,014 HKD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$20,008 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.38ct lab-grown cushion diamond

This 1.38ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799648028 or 799648028. Listed at 16 retailers as of October 31, 2026, with prices from HK$3,994 to HK$20,008, a HK$16,014 spread on the same certified stone. Brilliant Earth lists it at HK$20,008. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.38
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799648028
Dimensions8.09 × 5.77 × 3.71 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
8.09 mm5.77 mm1.38 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799648028
Side View
Table 61.0%Crown 33.7°Girdle: MED-STKPavilion 33.8°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
A+
Exceptional
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 1
Current: HK$20,008 HKD|Low: HK$3,813 HKD|High: HK$25,892 HKD|Avg: HK$10,433 HKD|-22.7%
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
November 2, 2026
Retailer 9HK$3,994 HKD
Retailer 6HK$4,229 HKD
Retailer 3HK$6,065 HKD
Retailer 15HK$6,395 HKD
Retailer 11HK$6,615 HKD
Retailer 4HK$6,653 HKD
Retailer 8HK$6,927 HKD
Retailer 2HK$7,296 HKD
Retailer 5HK$8,113 HKD
Retailer 14HK$10,184 HKD
Retailer 7HK$13,849 HKD
Retailer 12HK$14,782 HKD
Retailer 10HK$15,545 HKD
Retailer 13HK$16,045 HKD
Brilliant EarthHK$20,008 HKD

36 data points across 15 retailers

16 retailersHK$3,994 HKD to HK$20,008 HKD

A+
Cheapest Retailer
-
HK$3,994 HKD
$509 USD
Final sale: no returns
Retailer 2
-
HK$4,229 HKD
$539 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
HK$6,065 HKD
$773 USD
View
A
Retailer 4
-
HK$6,395 HKD
$815 USD
View
A
Retailer 5
-
HK$6,615 HKD
€803 EUR
View
A
Retailer 6
-
HK$6,653 HKD
$848 USD
View
A
Retailer 7
-
HK$6,927 HKD
£695 GBP
View
A
Retailer 8
-
HK$7,296 HKD
ZAR 15,023 ZAR
View
A
Retailer 9
-
HK$8,113 HKD
$1,034 USD
View
B+
Retailer 10
-
HK$10,184 HKD
$1,298 USD
View
B+
Retailer 11
-
HK$13,849 HKD
$1,765 USD
View
B+
Retailer 12
-
HK$14,782 HKD
SGD 2,546 SGD
View
B+
Retailer 13
-
HK$15,545 HKD
£1,560 GBP
View
B+
Retailer 14
-
HK$16,045 HKD
$2,045 USD
View
Retailer 15
-
HK$16,740 HKD
£1,680 GBP
View
Price last confirmed 23 days ago
Most Expensive
B
Brilliant Earth
21420693A · Oct 31
HK$20,008 HKD
$2,550 USD
View
15 more retailers have this diamond
Prices start from HK$3,994 HKDSave up to HK$16,014 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+
1.38ct Cushion
HK$3,994 HKD