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Cushion|Lab Grown|IGI

1.00ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG816612563

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

Certificate IGI LG816612563

Diamond specifications and retailer prices

From HK$2,856 HKD
As of November 3, 2026
Save HK$12,522 HKD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$15,378 HKD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1ct lab-grown cushion diamond

This 1ct 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 LG816612563 or 816612563. Listed at 13 retailers as of November 3, 2026, with prices from HK$2,856 to HK$15,378, a HK$12,522 spread on the same certified stone. Brilliant Earth lists it at HK$15,378. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816612563
Dimensions6.01 × 5.86 × 3.77 mm
L/W Ratio1.03
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
6.01 mm5.86 mm1.00 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816612563
Side View
Table 60.0%Crown 35.3°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
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: Nov 3
Current: HK$15,378 HKD|Low: HK$2,856 HKD|High: HK$20,399 HKD|Avg: HK$7,818 HKD|-24.6%
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
November 5, 2026
Retailer 13HK$2,856 HKD
Retailer 5HK$3,264 HKD
Retailer 12HK$4,582 HKD
Retailer 7HK$4,590 HKD
Retailer 2HK$5,029 HKD
Retailer 3HK$5,123 HKD
Retailer 10HK$5,123 HKD
Retailer 8HK$5,461 HKD
Retailer 6HK$9,595 HKD
Retailer 4HK$10,435 HKD
Retailer 11HK$12,506 HKD
Retailer 9HK$12,687 HKD
Brilliant EarthHK$15,378 HKD

37 data points across 13 retailers

13 retailersHK$2,856 HKD to HK$15,378 HKD

A
Cheapest Retailer
-
HK$2,856 HKD
Final sale: no returns
Retailer 2
-
HK$3,264 HKD
View
Price last confirmed 24 days ago
A
Retailer 3
-
HK$4,582 HKD
View
A
Retailer 4
-
HK$4,590 HKD
View
A
Retailer 5
-
HK$5,029 HKD
View
A
Retailer 6
-
HK$5,123 HKD
View
A
Retailer 7
-
HK$5,123 HKD
View
A
Retailer 8
-
HK$5,461 HKD
View
B+
Retailer 9
-
HK$9,595 HKD
View
B+
Retailer 10
-
HK$10,435 HKD
View
B
Retailer 11
-
HK$12,506 HKD
View
B+
Retailer 12
-
HK$12,687 HKD
View
Most Expensive
B
Brilliant Earth
21018661A · Nov 4
HK$15,378 HKD
$1,960 USD
View
12 more retailers have this diamond
Prices start from HK$2,856 HKDSave up to HK$12,522 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
1.00ct Cushion
HK$2,856 HKD