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Cushion|Lab Grown|IGI

1.23ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1 • IGI LG833665783

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

Certificate IGI LG833665783

Diamond specifications and retailer prices

From HK$1,763 HKD
As of November 6, 2026
Save HK$7,019 HKD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$8,782 HKD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.23ct lab-grown cushion diamond

This 1.23ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG833665783 or 833665783. Listed at 11 retailers as of November 6, 2026, with prices from HK$1,763 to HK$8,782, a HK$7,019 spread on the same certified stone. Reve Diamonds lists it at HK$8,782. 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

1.23
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833665783
Dimensions6.26 × 6.17 × 4.15 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
6.26 mm6.17 mm1.23 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833665783
Side View
Table 61.0%Crown 35.5°Girdle: MED-THKPavilion 39.9°Culet: NoneDepth 67.3%

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 6
Current: HK$2,892 HKD|Low: HK$1,654 HKD|High: HK$8,782 HKD|Avg: HK$4,557 HKD|+4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Reve Diamonds
November 6, 2026
Retailer 2HK$1,662 HKD
Retailer 8HK$1,763 HKD
Retailer 1HK$2,892 HKD
Retailer 3HK$3,041 HKD
Retailer 9HK$3,064 HKD
Retailer 7HK$3,221 HKD
Retailer 6HK$4,467 HKD
Retailer 5HK$5,956 HKD
Retailer 10HK$5,956 HKD
Retailer 4HK$8,018 HKD
Reve DiamondsHK$8,782 HKD

45 data points across 11 retailers

11 retailersHK$1,763 HKD to HK$8,782 HKD

Retailer 1
-
HK$1,662 HKD
Price last confirmed 12 days ago
A
Retailer 2
-
HK$1,763 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$2,892 HKD
View
A
Retailer 4
-
HK$3,041 HKD
View
B+
Retailer 5
-
HK$3,064 HKD
View
B+
Retailer 6
-
HK$3,221 HKD
View
B+
Retailer 7
-
HK$4,467 HKD
View
B
Retailer 8
-
HK$5,956 HKD
View
B
Retailer 9
-
HK$5,956 HKD
View
B
Retailer 10
-
HK$8,018 HKD
View
Most Expensive
B
Reve Diamonds
B8323DEFA · Nov 6
HK$8,782 HKD
$1,121 USD
View
10 more retailers have this diamond
Prices start from HK$1,763 HKDSave up to HK$7,019 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
1.23ct Cushion
HK$1,763 HKD