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Cushion|Lab Grown|IGI

1.20ct E VS1 Cushion Lab Grown Diamond

EX • E/VS1 • IGI LG805666656

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

Certificate IGI LG805666656

Diamond specifications and retailer prices

From HK$1,648 HKD
$210 USD
As of October 31, 2026
Save HK$8,160 HKD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$9,807 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG805666656 or 805666656. Listed at 16 retailers as of October 29, 2026, with prices from HK$1,648 to HK$9,807, a HK$8,160 spread on the same certified stone. Brilliant Earth lists it at HK$9,807. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805666656
Dimensions6.19 × 6.14 × 4.03 mm
L/W Ratio1.01
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
6.19 mm6.14 mm1.20 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805666656
Side View
Table 64.0%Crown 38°Girdle: STK-THKPavilion 38.4°Culet: NoneDepth 65.6%

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 31
Current: HK$9,807 HKD|Low: HK$1,593 HKD|High: HK$9,807 HKD|Avg: HK$4,884 HKD|+11.6%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 31, 2026
Retailer 2HK$1,648 HKD
Retailer 5HK$1,836 HKD
Retailer 15HK$2,291 HKD
Retailer 8HK$2,790 HKD
Retailer 17HK$2,999 HKD
Retailer 13HK$3,201 HKD
Retailer 11HK$3,309 HKD
Retailer 12HK$3,358 HKD
Retailer 9HK$4,347 HKD
Retailer 7HK$4,354 HKD
Retailer 6HK$4,488 HKD
Retailer 3HK$5,139 HKD
Retailer 4HK$5,329 HKD
Retailer 16HK$6,288 HKD
Retailer 18HK$8,320 HKD
Retailer 10HK$8,848 HKD
Retailer 14HK$9,052 HKD
Brilliant EarthHK$9,807 HKD

17 data points across 18 retailers

16 retailersHK$1,648 HKD to HK$9,807 HKD

A
Cheapest Retailer
-
HK$1,648 HKD
$210 USD
Final sale: no returns
A
Retailer 2
-
HK$1,836 HKD
$234 USD
View
A
Retailer 3
-
HK$2,291 HKD
£230 GBP
View
A
Retailer 4
-
HK$2,999 HKD
€364 EUR
View
A
Retailer 5
-
HK$3,201 HKD
$408 USD
View
A
Retailer 6
-
HK$3,309 HKD
£332 GBP
View
A
Retailer 7
-
HK$3,358 HKD
$428 USD
View
B+
Retailer 8
-
HK$4,354 HKD
$555 USD
View
Retailer 9
-
HK$4,488 HKD
A$880 AUD
View
Price last confirmed 7 days ago
B+
Retailer 10
-
HK$5,021 HKD
$640 USD
View
B+
Retailer 11
-
HK$5,139 HKD
$655 USD
View
B+
Retailer 12
-
HK$5,329 HKD
A$1,045 AUD
View
B+
Retailer 13
-
HK$6,288 HKD
$801 USD
View
B
Retailer 14
-
HK$8,320 HKD
£835 GBP
View
B
Retailer 15
-
HK$9,052 HKD
$1,154 USD
View
Most Expensive
B
Brilliant Earth
20079173A · Oct 29
HK$9,807 HKD
$1,250 USD
View
15 more retailers have this diamond
Prices start from HK$1,648 HKDSave up to HK$8,160 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$1,648 HKD