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Cushion|Lab Grown|IGI

1.21ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG840632427

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840632427

Diamond specifications and retailer prices

From $765 NZD
$431 USD
As of October 30, 2026
Save $3,162 NZD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,927 NZD at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 1.21ct lab-grown cushion diamond

This 1.21ct 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 LG840632427 or 840632427. Listed at 16 retailers as of October 30, 2026, with prices from $765 to $3,927, a $3,162 spread on the same certified stone. Helzberg Diamonds lists it at $3,927. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840632427
Dimensions7.60 × 5.33 × 3.64 mm
L/W Ratio1.43
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
7.60 mm5.33 mm1.21 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840632427
Side View
Table 60.0%Crown 35.1°Girdle: STK-THKPavilion 35°Culet: NoneDepth 68.3%

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: $3,927 NZD|Low: $765 NZD|High: $4,542 NZD|Avg: $2,176 NZD
Helzberg Diamonds
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
Retailer 16
October 31, 2026
Retailer 3$765 NZD
Retailer 12$897 NZD
Retailer 9$1,109 NZD
Retailer 5$1,258 NZD
Retailer 6$1,347 NZD
Retailer 13$1,364 NZD
Retailer 14$1,454 NZD
Retailer 16$1,478 NZD
Retailer 2$1,519 NZD
Retailer 10$2,021 NZD
Retailer 7$2,693 NZD
Retailer 8$2,724 NZD
Retailer 4$2,786 NZD
Retailer 11$3,176 NZD
Retailer 15$3,310 NZD
Helzberg Diamonds$3,927 NZD

18 data points across 16 retailers

16 retailers$765 NZD to $3,927 NZD

A
Cheapest Retailer
-
$765 NZD
$431 USD
Final sale: no returns
A
Retailer 2
-
$897 NZD
£398 GBP
View
A
Retailer 3
-
$1,109 NZD
$625 USD
View
A
Retailer 4
-
$1,258 NZD
$709 USD
View
A
Retailer 5
-
$1,347 NZD
$759 USD
View
A
Retailer 6
-
$1,364 NZD
€732 EUR
View
A
Retailer 7
-
$1,454 NZD
ZAR 13,235 ZAR
View
A
Retailer 8
-
$1,478 NZD
$833 USD
View
A
Retailer 9
-
$1,519 NZD
£674 GBP
View
B+
Retailer 10
-
$2,021 NZD
$1,139 USD
View
B+
Retailer 11
-
$2,693 NZD
SGD 2,051 SGD
View
Retailer 12
-
$2,724 NZD
$1,535 USD
View
Price last confirmed 17 days ago
B+
Retailer 13
-
$2,786 NZD
$1,570 USD
View
B+
Retailer 14
-
$3,176 NZD
$1,790 USD
View
B
Retailer 15
-
$3,310 NZD
£1,469 GBP
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJIKIN · Oct 31
$3,927 NZD
$2,213 USD
View
15 more retailers have this diamond
Prices start from $765 NZDSave up to $3,162 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
1.21ct Cushion
$765 NZD