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Cushion|Lab Grown|IGI

1.03ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG818673728

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818673728

Diamond specifications and retailer prices

From HK$1,129 HKD
As of November 6, 2026
Save HK$9,601 HKD (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$10,730 HKD at MOH London · As of November 2, 2026
View at MOH London

About this 1.03ct lab-grown cushion diamond

This 1.03ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG818673728 or 818673728. Listed at 14 retailers as of November 2, 2026, with prices from HK$1,129 to HK$10,730, a HK$9,601 spread on the same certified stone. MOH London lists it at HK$10,730. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.03
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818673728
Dimensions6.61 × 5.18 × 3.63 mm
L/W Ratio1.28
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.61 mm5.18 mm1.03 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818673728
Side View
Table 59.0%Crown 35.3°Girdle: MED-THKPavilion 37.1°Culet: NoneDepth 70.1%

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 6
Current: HK$10,730 HKD|Low: HK$1,129 HKD|High: HK$10,989 HKD|Avg: HK$3,913 HKD|-2.2%
MOH London
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
November 6, 2026
Retailer 8HK$1,129 HKD
Retailer 9HK$1,615 HKD
Retailer 14HK$1,709 HKD
Retailer 13HK$2,077 HKD
Retailer 2HK$2,249 HKD
Retailer 7HK$2,304 HKD
Retailer 3HK$2,383 HKD
Retailer 4HK$3,229 HKD
Retailer 12HK$3,488 HKD
Retailer 6HK$3,880 HKD
Retailer 5HK$3,919 HKD
Retailer 10HK$4,475 HKD
Retailer 11HK$7,579 HKD
MOH LondonHK$10,730 HKD

43 data points across 14 retailers

14 retailersHK$1,129 HKD to HK$10,730 HKD

A
Cheapest Retailer
-
HK$1,129 HKD
Final sale: no returns
A
Retailer 2
-
HK$1,615 HKD
View
B+
Retailer 3
-
HK$1,709 HKD
View
A
Retailer 4
-
HK$2,077 HKD
View
A
Retailer 5
-
HK$2,249 HKD
View
A
Retailer 6
-
HK$2,304 HKD
View
A
Retailer 7
-
HK$2,383 HKD
View
A
Retailer 8
-
HK$3,229 HKD
View
B+
Retailer 9
-
HK$3,488 HKD
View
B+
Retailer 10
-
HK$3,880 HKD
View
B+
Retailer 11
-
HK$3,919 HKD
View
B+
Retailer 12
-
HK$4,475 HKD
View
B
Retailer 13
-
HK$7,579 HKD
View
Most Expensive
B
MOH London
LG818673728 · Nov 2
HK$10,730 HKD
£1,078 GBP
View
13 more retailers have this diamond
Prices start from HK$1,129 HKDSave up to HK$9,601 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
1.03ct Cushion
HK$1,129 HKD