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Cushion|Lab Grown|IGI

1.09ct E FL Cushion Lab Grown Diamond

GD • E/FL • IGI LG840635024

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840635024

Diamond specifications and retailer prices

From $730 NZD
£324 GBP
As of October 30, 2026
Save $2,720 NZD (79%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,449 NZD at Helzberg Diamonds · As of October 30, 2026
View at Helzberg Diamonds

About this 1.09ct lab-grown cushion diamond

This 1.09ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG840635024 or 840635024. Listed at 15 retailers as of October 30, 2026, with prices from $730 to $3,449, a $2,720 spread on the same certified stone. Helzberg Diamonds lists it at $3,449. 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

1.09
Carat
E
Colour
FL
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840635024
Dimensions7.59 × 5.18 × 3.47 mm
L/W Ratio1.47
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
7.59 mm5.18 mm1.09 ctE / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840635024
Side View
Table 63.0%Crown 35.9°Girdle: STK-THKPavilion 35.7°Culet: NoneDepth 67.0%

Caratlytics Score

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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: $3,449 NZD|Low: $727 NZD|High: $3,903 NZD|Avg: $1,947 NZD|-1.3%
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
October 31, 2026
Retailer 9$730 NZD
Retailer 14$1,038 NZD
Retailer 3$1,116 NZD
Retailer 5$1,120 NZD
Retailer 11$1,151 NZD
Retailer 13$1,182 NZD
Retailer 15$1,207 NZD
Retailer 10$1,226 NZD
Retailer 2$1,694 NZD
Retailer 6$1,883 NZD
Retailer 4$2,293 NZD
Retailer 7$2,475 NZD
Retailer 12$2,772 NZD
Retailer 8$3,247 NZD
Helzberg Diamonds$3,449 NZD

15 data points across 15 retailers

15 retailers$730 NZD to $3,449 NZD

A
Cheapest Retailer
-
$730 NZD
£324 GBP
A
Retailer 2
-
$1,038 NZD
$585 USD
View
A
Retailer 3
-
$1,116 NZD
$629 USD
View
A
Retailer 4
-
$1,120 NZD
$631 USD
View
A
Retailer 5
-
$1,151 NZD
€618 EUR
View
A
Retailer 6
-
$1,182 NZD
ZAR 10,764 ZAR
View
A
Retailer 7
-
$1,207 NZD
$680 USD
View
A
Retailer 8
-
$1,226 NZD
£544 GBP
View
B+
Retailer 9
-
$1,694 NZD
$955 USD
View
B+
Retailer 10
-
$1,883 NZD
SGD 1,434 SGD
View
B
Retailer 11
-
$2,293 NZD
$1,293 USD
View
Retailer 12
-
$2,475 NZD
$1,395 USD
View
Price last confirmed 12 days ago
B
Retailer 13
-
$2,772 NZD
£1,230 GBP
View
B
Retailer 14
-
$3,247 NZD
$1,830 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJLGIK · Oct 30
$3,449 NZD
$1,944 USD
View
14 more retailers have this diamond
Prices start from $730 NZDSave up to $2,720 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
1.09ct Cushion
$730 NZD