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Cushion|Lab Grown|IGI

1.20ct E FL Cushion Lab Grown Diamond

VG • E/FL • IGI LG830620137

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG830620137

Diamond specifications and retailer prices

From HK$3,350 HKD
$427 USD
As of October 30, 2026
Save HK$16,579 HKD (83%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$19,930 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.2ct lab-grown cushion diamond

This 1.2ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG830620137 or 830620137. Listed at 8 retailers as of October 29, 2026, with prices from HK$3,350 to HK$19,930, a HK$16,579 spread on the same certified stone. Brilliant Earth lists it at HK$19,930. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
E
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830620137
Dimensions7.78 × 5.28 × 3.54 mm
L/W Ratio1.47
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
7.78 mm5.28 mm1.20 ctE / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830620137
Side View
Table 62.0%Crown 35.5°Girdle: STK-VTKPavilion 38.2°Culet: NoneDepth 67.0%

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: Oct 30
Current: HK$19,930 HKD|Low: HK$3,350 HKD|High: HK$19,930 HKD|Avg: HK$9,343 HKD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 7HK$3,350 HKD
Retailer 3HK$3,937 HKD
Retailer 2HK$5,908 HKD
Retailer 5HK$6,442 HKD
Retailer 4HK$6,718 HKD
Retailer 8HK$11,816 HKD
Retailer 6HK$12,232 HKD
Brilliant EarthHK$19,930 HKD

2 data points across 8 retailers

8 retailersHK$3,350 HKD to HK$19,930 HKD

A
Cheapest Retailer
-
HK$3,350 HKD
$427 USD
Final sale: no returns
A
Retailer 2
-
HK$3,937 HKD
£395 GBP
View
A
Retailer 3
-
HK$5,908 HKD
$753 USD
View
A
Retailer 4
-
HK$6,442 HKD
$821 USD
View
A
Retailer 5
-
HK$6,718 HKD
£674 GBP
View
B
Retailer 6
-
HK$11,816 HKD
SGD 2,035 SGD
View
B
Retailer 7
-
HK$12,232 HKD
$1,559 USD
View
Most Expensive
B
Brilliant Earth
22348636A · Oct 29
HK$19,930 HKD
$2,540 USD
View
7 more retailers have this diamond
Prices start from HK$3,350 HKDSave up to HK$16,579 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
1.20ct Cushion
HK$3,350 HKD