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Cushion|Lab Grown|IGI

1.02ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1 • IGI LG400942192

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

Certificate IGI LG400942192

Diamond specifications and retailer prices

From $773 USD
As of October 28, 2026
Save $529 USD (41%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,302 USD at Loose Grown Diamond · As of October 28, 2026
View at Loose Grown Diamond

About this 1.02ct lab-grown cushion diamond

This 1.02ct 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 LG400942192 or 400942192. Listed at 8 retailers as of October 28, 2026, with prices from $773 to $1,302, a $529 spread on the same certified stone. Loose Grown Diamond lists it at $1,302. 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

1.02
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.2°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG400942192
Dimensions5.79 × 5.73 × 3.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by high pressure high temperature process (HPHT) Type II
Top View
5.79 mm5.73 mm1.02 ctE / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG400942192
Side View
Table 64.5%Crown 33.2°Girdle: STK-VTKPavilion 33.8°Culet: NoneDepth 62.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 28
Current: $1,302 USD|Low: $773 USD|High: $3,181 USD|Avg: $1,295 USD
Loose Grown Diamond
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 8$773 USD
Retailer 7$800 USD
Retailer 6$910 USD
Retailer 5$975 USD
Retailer 4$1,116 USD
Retailer 2$1,278 USD
Loose Grown Diamond$1,302 USD
Retailer 3$3,160 USD

43 data points across 8 retailers

8 retailers$773 USD to $1,302 USD

B
Cheapest Retailer
-
$773 USD
Final sale: no returns
B
Retailer 2
-
$800 USD
View
Price last confirmed 13 days ago
B
Retailer 3
-
$910 USD
View
B
Retailer 4
-
$975 USD
View
B
Retailer 5
-
$1,116 USD
£879 GBP
View
B
Retailer 6
-
$1,278 USD
£1,006 GBP
View
Most Expensive
C
Loose Grown Diamond
400942192 · Oct 28
$1,302 USD
View
6 more retailers have this diamond
Prices start from $773 USDSave up to $529 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.

B
1.02ct Cushion
$773 USD