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Radiant|Lab Grown|IGI

1.09ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG831604024

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG831604024

Diamond specifications and retailer prices

From $444 NZD
As of November 4, 2026
Save $3,566 NZD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,009 NZD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.09ct lab-grown radiant diamond

This 1.09ct lab-grown radiant 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 LG831604024 or 831604024. Listed at 22 retailers as of November 4, 2026, with prices from $444 to $4,009, a $3,566 spread on the same certified stone. Brilliant Earth lists it at $4,009. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831604024
Dimensions7.72 × 5.14 × 3.34 mm
L/W Ratio1.50
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
7.72 mm5.14 mm1.09 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831604024
Side View
Table 63.0%Crown 36.4°Girdle: THN-MEDPavilion 36.1°Culet: NoneDepth 65.0%

Caratlytics Score

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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: Nov 4
Current: $4,009 NZD|Low: $444 NZD|High: $4,009 NZD|Avg: $1,276 NZD
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 21
November 4, 2026
Retailer 17$444 NZD
Retailer 9$495 NZD
Retailer 8$514 NZD
Retailer 20$550 NZD
Retailer 2$564 NZD
Retailer 6$612 NZD
Retailer 14$754 NZD
Retailer 18$949 NZD
Retailer 3$962 NZD
Retailer 10$985 NZD
Retailer 13$1,034 NZD
Retailer 4$1,141 NZD
Retailer 5$1,157 NZD
Retailer 16$1,331 NZD
Retailer 11$1,478 NZD
Retailer 21$1,767 NZD
Retailer 7$1,857 NZD
Retailer 12$1,925 NZD
Retailer 15$2,203 NZD
Retailer 19$2,398 NZD
Brilliant Earth$4,009 NZD

31 data points across 21 retailers

22 retailers$444 NZD to $4,009 NZD

A
Cheapest Retailer
-
$444 NZD
A
Retailer 2
-
$495 NZD
View
Final sale: no returns
A
Retailer 3
-
$514 NZD
View
A
Retailer 4
-
$550 NZD
View
A
Retailer 5
-
$564 NZD
View
A
Retailer 6
-
$612 NZD
View
Retailer 7
-
$715 NZD
View
Price last confirmed 10 days ago
A
Retailer 8
-
$754 NZD
View
A
Retailer 9
-
$949 NZD
View
A
Retailer 10
-
$962 NZD
View
Retailer 11
-
$985 NZD
View
Price last confirmed 4 days ago
A
Retailer 12
-
$1,034 NZD
View
B+
Retailer 13
-
$1,141 NZD
View
B+
Retailer 14
-
$1,157 NZD
View
B+
Retailer 15
-
$1,331 NZD
View
B+
Retailer 16
-
$1,478 NZD
View
B+
Retailer 17
-
$1,767 NZD
View
B+
Retailer 18
-
$1,857 NZD
View
B
Retailer 19
-
$1,925 NZD
View
B+
Retailer 20
-
$2,203 NZD
View
B
Retailer 21
-
$2,398 NZD
View
Most Expensive
B
Brilliant Earth
21605275A · Nov 4
$4,009 NZD
$2,260 USD
View
21 more retailers have this diamond
Prices start from $444 NZDSave up to $3,566 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 Radiant
$444 NZD