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Cushion|Lab Grown|IGI

1.05ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG816610575

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

Certificate IGI LG816610575

Diamond specifications and retailer prices

From $601 NZD
$339 USD
As of October 30, 2026
Save $2,592 NZD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,194 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816610575 or 816610575. Listed at 14 retailers as of October 30, 2026, with prices from $601 to $3,194, a $2,592 spread on the same certified stone. Brilliant Earth lists it at $3,194. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle42.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816610575
Dimensions5.85 × 5.84 × 4.06 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
5.85 mm5.84 mm1.05 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816610575
Side View
Table 63.0%Crown 35.8°Girdle: MED-STKPavilion 42.7°Culet: NoneDepth 69.5%

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: Oct 30
Current: $3,194 NZD|Low: $601 NZD|High: $3,779 NZD|Avg: $1,693 NZD|-15.5%
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
October 30, 2026
Retailer 13$601 NZD
Retailer 2$708 NZD
Retailer 6$749 NZD
Retailer 3$1,091 NZD
Retailer 8$1,094 NZD
Retailer 12$1,128 NZD
Retailer 11$1,136 NZD
Retailer 9$1,148 NZD
Retailer 7$1,186 NZD
Retailer 4$2,231 NZD
Retailer 5$2,378 NZD
Retailer 14$2,679 NZD
Retailer 10$2,704 NZD
Brilliant Earth$3,194 NZD

38 data points across 14 retailers

14 retailers$601 NZD to $3,194 NZD

A
Cheapest Retailer
-
$601 NZD
$339 USD
Final sale: no returns
A
Retailer 2
-
$708 NZD
£314 GBP
View
Retailer 3
-
$749 NZD
$422 USD
View
Price last confirmed 18 days ago
A
Retailer 4
-
$1,091 NZD
$615 USD
View
A
Retailer 5
-
$1,094 NZD
€587 EUR
View
A
Retailer 6
-
$1,128 NZD
$636 USD
View
A
Retailer 7
-
$1,136 NZD
$640 USD
View
A
Retailer 8
-
$1,148 NZD
ZAR 10,449 ZAR
View
A
Retailer 9
-
$1,186 NZD
£527 GBP
View
B+
Retailer 10
-
$2,231 NZD
$1,257 USD
View
Retailer 11
-
$2,378 NZD
$1,340 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
$2,679 NZD
£1,189 GBP
View
B
Retailer 13
-
$2,704 NZD
$1,524 USD
View
Most Expensive
B
Brilliant Earth
21019001A · Oct 30
$3,194 NZD
$1,800 USD
View
13 more retailers have this diamond
Prices start from $601 NZDSave up to $2,592 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
1.05ct Cushion
$601 NZD