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Cushion|Lab Grown|IGI

1.00ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG851605828

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG851605828

Diamond specifications and retailer prices

From HK$1,662 HKD
As of November 4, 2026
Save HK$8,581 HKD (84%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$10,242 HKD at MOH London · As of November 2, 2026
View at MOH London

About this 1ct lab-grown cushion diamond

This 1ct 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 LG851605828 or 851605828. Listed at 6 retailers as of November 2, 2026, with prices from HK$1,662 to HK$10,242, a HK$8,581 spread on the same certified stone. MOH London lists it at HK$10,242. 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

1.00
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851605828
Dimensions7.05 × 5.15 × 3.41 mm
L/W Ratio1.37
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.05 mm5.15 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851605828
Side View
Table 69.0%Crown 34.6°Girdle: MED-THKPavilion 37°Culet: NoneDepth 66.2%

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 4
Current: HK$10,242 HKD|Low: HK$1,662 HKD|High: HK$10,242 HKD|Avg: HK$3,495 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6HK$1,662 HKD
Retailer 2HK$2,014 HKD
Retailer 4HK$2,187 HKD
Retailer 3HK$2,328 HKD
Retailer 5HK$4,381 HKD
MOH LondonHK$10,242 HKD

8 data points across 6 retailers

6 retailersHK$1,662 HKD to HK$10,242 HKD

B+
Cheapest Retailer
-
HK$1,662 HKD
A
Retailer 2
-
HK$2,014 HKD
View
A
Retailer 3
-
HK$2,187 HKD
View
A
Retailer 4
-
HK$2,328 HKD
View
B
Retailer 5
-
HK$4,381 HKD
View
Most Expensive
B
MOH London
LG851605828 · Nov 2
HK$10,242 HKD
£1,029 GBP
View
5 more retailers have this diamond
Prices start from HK$1,662 HKDSave up to HK$8,581 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
1.00ct Cushion
HK$1,662 HKD