Cushion|Lab Grown|IGI

1.05ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG833671683

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG833671683

Diamond specifications and retailer prices

From $179 USD
HK$1,400 HKD
As of October 30, 2026
Save $1,163 USD (87%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,342 USD at MOH London · As of October 25, 2026
View at MOH London

About this 1.05ct lab-grown cushion diamond

This 1.05ct 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 LG833671683 or 833671683. Listed at 11 retailers as of October 25, 2026, with prices from $179 to $1,342, a $1,163 spread on the same certified stone. MOH London lists it at $1,342. 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

1.05
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.4°
Pavilion angle29.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833671683
Dimensions7.29 × 5.26 × 3.18 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.29 mm5.26 mm1.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG833671683
Side View
Table 61.0%Crown 34.4°Girdle: MED-THKPavilion 29.6°Culet: NoneDepth 60.5%

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: $1,342 USD|Low: $144 USD|High: $1,374 USD|Avg: $409 USD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 28, 2026
Retailer 11$144 USD
Retailer 12$179 USD
Retailer 5$209 USD
Retailer 6$268 USD
Retailer 8$280 USD
Retailer 10$306 USD
Retailer 4$311 USD
Retailer 7$345 USD
Retailer 9$397 USD
Retailer 2$441 USD
Retailer 3$505 USD
MOH London$1,342 USD

36 data points across 12 retailers

11 retailers$179 USD to $1,342 USD

A
Cheapest Retailer
-
$179 USD
HK$1,400 HKD
A
Retailer 2
-
$209 USD
£164 GBP
View
A
Retailer 3
-
$268 USD
£211 GBP
View
A
Retailer 4
-
$280 USD
€267 EUR
View
B+
Retailer 5
-
$306 USD
View
A
Retailer 6
-
$311 USD
View
A
Retailer 7
-
$345 USD
£272 GBP
View
B+
Retailer 8
-
$397 USD
View
B+
Retailer 9
-
$441 USD
SGD 596 SGD
View
B+
Retailer 10
-
$505 USD
View
Most Expensive
B
MOH London
LG833671683 · Oct 25
$1,342 USD
£1,057 GBP
View
10 more retailers have this diamond
Prices start from $179 USDSave up to $1,163 USD

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
1.05ct Cushion
$179 USD