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Cushion|Lab Grown|IGI

1.31ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846663203

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846663203

Diamond specifications and retailer prices

From HK$3,935 HKD
£395 GBP
As of November 1, 2026
Save HK$15,758 HKD (80%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$19,693 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.31ct lab-grown cushion diamond

This 1.31ct 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 LG846663203 or 846663203. Listed at 9 retailers as of October 31, 2026, with prices from HK$3,935 to HK$19,693, a HK$15,758 spread on the same certified stone. Brilliant Earth lists it at HK$19,693. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663203
Dimensions8.15 × 5.36 × 3.75 mm
L/W Ratio1.52
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
8.15 mm5.36 mm1.31 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663203
Side View
Table 58.0%Crown 31°Girdle: STK-THKPavilion 36.9°Culet: NoneDepth 70.0%

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: Nov 1
Current: HK$19,693 HKD|Low: HK$3,935 HKD|High: HK$20,085 HKD|Avg: HK$9,577 HKD|-2.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 5HK$3,935 HKD
Retailer 8HK$5,884 HKD
Retailer 4HK$6,065 HKD
Retailer 6HK$7,563 HKD
Retailer 7HK$7,735 HKD
Retailer 9HK$12,177 HKD
Retailer 3HK$14,936 HKD
Retailer 2HK$15,221 HKD
Brilliant EarthHK$19,693 HKD

8 data points across 9 retailers

9 retailersHK$3,935 HKD to HK$19,693 HKD

A
Cheapest Retailer
-
HK$3,935 HKD
£395 GBP
A
Retailer 2
-
HK$5,884 HKD
$750 USD
View
A
Retailer 3
-
HK$6,065 HKD
$773 USD
View
A
Retailer 4
-
HK$7,563 HKD
$964 USD
View
A
Retailer 5
-
HK$7,735 HKD
€939 EUR
View
B+
Retailer 6
-
HK$12,177 HKD
$1,552 USD
View
B+
Retailer 7
-
HK$14,936 HKD
£1,499 GBP
View
B
Retailer 8
-
HK$15,221 HKD
$1,940 USD
View
Most Expensive
B
Brilliant Earth
22305438A · Oct 31
HK$19,693 HKD
$2,510 USD
View
8 more retailers have this diamond
Prices start from HK$3,935 HKDSave up to HK$15,758 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
1.31ct Cushion
HK$3,935 HKD