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Cushion|Lab Grown|IGI

1.09ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG816624103

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

Certificate IGI LG816624103

Diamond specifications and retailer prices

From $697 NZD
$393 USD
As of November 1, 2026
Save $3,064 NZD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,762 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.09ct lab-grown cushion diamond

This 1.09ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816624103 or 816624103. Listed at 13 retailers as of October 31, 2026, with prices from $697 to $3,762, a $3,064 spread on the same certified stone. Brilliant Earth lists it at $3,762. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816624103
Dimensions6.25 × 6.10 × 3.89 mm
L/W Ratio1.02
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
6.25 mm6.10 mm1.09 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816624103
Side View
Table 61.0%Crown 35.2°Girdle: THN-STKPavilion 39.8°Culet: NoneDepth 63.8%

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: Nov 1
Current: $3,762 NZD|Low: $697 NZD|High: $5,039 NZD|Avg: $1,905 NZD|-25.4%
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
November 1, 2026
Retailer 11$697 NZD
Retailer 4$798 NZD
Retailer 7$1,171 NZD
Retailer 10$1,205 NZD
Retailer 13$1,246 NZD
Retailer 6$1,248 NZD
Retailer 8$1,332 NZD
Retailer 2$1,395 NZD
Retailer 3$2,566 NZD
Retailer 5$2,573 NZD
Retailer 9$2,981 NZD
Retailer 12$3,033 NZD
Brilliant Earth$3,762 NZD

35 data points across 13 retailers

13 retailers$697 NZD to $3,762 NZD

A
Cheapest Retailer
-
$697 NZD
$393 USD
Final sale: no returns
Retailer 2
-
$798 NZD
$450 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$1,171 NZD
$660 USD
View
A
Retailer 4
-
$1,205 NZD
$679 USD
View
A
Retailer 5
-
$1,246 NZD
$702 USD
View
A
Retailer 6
-
$1,248 NZD
€670 EUR
View
A
Retailer 7
-
$1,332 NZD
ZAR 12,131 ZAR
View
A
Retailer 8
-
$1,395 NZD
£619 GBP
View
B+
Retailer 9
-
$2,566 NZD
$1,446 USD
View
Retailer 10
-
$2,573 NZD
$1,450 USD
View
Price last confirmed 14 days ago
B
Retailer 11
-
$2,981 NZD
$1,680 USD
View
B+
Retailer 12
-
$3,033 NZD
£1,346 GBP
View
Most Expensive
B
Brilliant Earth
21018849A · Oct 31
$3,762 NZD
$2,120 USD
View
12 more retailers have this diamond
Prices start from $697 NZDSave up to $3,064 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
$697 NZD