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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 $1,394 NZD
As of November 6, 2026
Save $954 NZD (41%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,349 NZD at Loose Grown Diamond · As of November 6, 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 November 6, 2026, with prices from $1,394 to $2,349, a $954 spread on the same certified stone. Loose Grown Diamond lists it at $2,349. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,349 NZD|Low: $1,394 NZD|High: $5,738 NZD|Avg: $2,357 NZD
Loose Grown Diamond
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8$1,394 NZD
Retailer 7$1,443 NZD
Retailer 6$1,642 NZD
Retailer 4$1,759 NZD
Retailer 2$1,990 NZD
Retailer 3$2,282 NZD
Loose Grown Diamond$2,349 NZD
Retailer 5$5,670 NZD

45 data points across 8 retailers

8 retailers$1,394 NZD to $2,349 NZD

B
Cheapest Retailer
-
$1,394 NZD
Final sale: no returns
Retailer 2
-
$1,443 NZD
View
Price last confirmed 22 days ago
B
Retailer 3
-
$1,642 NZD
View
B
Retailer 4
-
$1,759 NZD
View
B
Retailer 5
-
$1,990 NZD
View
B
Retailer 6
-
$2,282 NZD
View
Most Expensive
C
Loose Grown Diamond
400942192 · Nov 6
$2,349 NZD
$1,302 USD
View
6 more retailers have this diamond
Prices start from $1,394 NZDSave up to $954 NZD

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
$1,394 NZD