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Cushion|Lab Grown|IGI

1.03ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG818662845

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

Certificate IGI LG818662845

Diamond specifications and retailer prices

From $641 NZD
$360 USD
As of October 30, 2026
Save $3,241 NZD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,881 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818662845 or 818662845. Listed at 15 retailers as of October 29, 2026, with prices from $641 to $3,881, a $3,241 spread on the same certified stone. Brilliant Earth lists it at $3,881. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818662845
Dimensions6.09 × 6.09 × 3.81 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.09 mm6.09 mm1.03 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818662845
Side View
Table 60.0%Crown 34.6°Girdle: MediumPavilion 39.1°Culet: NoneDepth 62.6%

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: $3,881 NZD|Low: $641 NZD|High: $3,881 NZD|Avg: $1,682 NZD
Brilliant Earth
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
Retailer 15
October 30, 2026
Retailer 15$641 NZD
Retailer 2$752 NZD
Retailer 7$794 NZD
Retailer 13$988 NZD
Retailer 14$1,107 NZD
Retailer 3$1,150 NZD
Retailer 9$1,157 NZD
Retailer 11$1,219 NZD
Retailer 8$1,266 NZD
Retailer 5$1,268 NZD
Retailer 6$2,341 NZD
Retailer 4$2,360 NZD
Retailer 12$2,814 NZD
Retailer 10$2,858 NZD
Brilliant Earth$3,881 NZD

37 data points across 15 retailers

15 retailers$641 NZD to $3,881 NZD

A
Cheapest Retailer
-
$641 NZD
$360 USD
Final sale: no returns
A
Retailer 2
-
$752 NZD
£333 GBP
View
Retailer 3
-
$794 NZD
$446 USD
View
Price last confirmed 18 days ago
A
Retailer 4
-
$988 NZD
$555 USD
View
A
Retailer 5
-
$1,107 NZD
$622 USD
View
A
Retailer 6
-
$1,150 NZD
$646 USD
View
A
Retailer 7
-
$1,157 NZD
€619 EUR
View
A
Retailer 8
-
$1,219 NZD
ZAR 11,058 ZAR
View
A
Retailer 9
-
$1,266 NZD
£560 GBP
View
A
Retailer 10
-
$1,268 NZD
$712 USD
View
Retailer 11
-
$2,341 NZD
$1,315 USD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
$2,360 NZD
$1,326 USD
View
B+
Retailer 13
-
$2,814 NZD
$1,581 USD
View
B+
Retailer 14
-
$2,858 NZD
£1,264 GBP
View
Most Expensive
B
Brilliant Earth
21242374A · Oct 29
$3,881 NZD
$2,180 USD
View
14 more retailers have this diamond
Prices start from $641 NZDSave up to $3,241 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.

A
1.03ct Cushion
$641 NZD