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Cushion|Lab Grown|IGI

1.03ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG816624821

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG816624821

Diamond specifications and retailer prices

From HK$2,958 HKD
$377 USD
As of October 30, 2026
Save HK$13,047 HKD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$16,005 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.03ct lab-grown cushion diamond

This 1.03ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816624821 or 816624821. Listed at 12 retailers as of October 30, 2026, with prices from HK$2,958 to HK$16,005, a HK$13,047 spread on the same certified stone. Brilliant Earth lists it at HK$16,005. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816624821
Dimensions6.07 × 5.98 × 3.84 mm
L/W Ratio1.02
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
6.07 mm5.98 mm1.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816624821
Side View
Table 57.0%Crown 35.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 64.2%

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$16,005 HKD|Low: HK$2,158 HKD|High: HK$21,026 HKD|Avg: HK$8,192 HKD|-23.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 10HK$2,958 HKD
Retailer 9HK$4,825 HKD
Retailer 3HK$4,864 HKD
Retailer 11HK$5,296 HKD
Retailer 5HK$5,305 HKD
Retailer 7HK$5,641 HKD
Retailer 2HK$5,837 HKD
Retailer 4HK$10,749 HKD
Retailer 12HK$10,892 HKD
Retailer 8HK$12,806 HKD
Retailer 6HK$13,222 HKD
Brilliant EarthHK$16,005 HKD

37 data points across 12 retailers

12 retailersHK$2,958 HKD to HK$16,005 HKD

A
Cheapest Retailer
-
HK$2,958 HKD
$377 USD
Final sale: no returns
A
Retailer 2
-
HK$4,825 HKD
$615 USD
View
A
Retailer 3
-
HK$4,864 HKD
$620 USD
View
A
Retailer 4
-
HK$5,296 HKD
$675 USD
View
A
Retailer 5
-
HK$5,305 HKD
€644 EUR
View
A
Retailer 6
-
HK$5,641 HKD
ZAR 11,616 ZAR
View
A
Retailer 7
-
HK$5,837 HKD
£586 GBP
View
Retailer 8
-
HK$10,749 HKD
$1,370 USD
View
Price last confirmed 13 days ago
B
Retailer 9
-
HK$10,892 HKD
$1,388 USD
View
B
Retailer 10
-
HK$12,806 HKD
$1,632 USD
View
B+
Retailer 11
-
HK$13,222 HKD
£1,327 GBP
View
Most Expensive
B
Brilliant Earth
21018766A · Oct 31
HK$16,005 HKD
$2,040 USD
View
11 more retailers have this diamond
Prices start from HK$2,958 HKDSave up to HK$13,047 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
1.03ct Cushion
HK$2,958 HKD