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Radiant|Lab Grown|IGI

1.09ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG817693445

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

Certificate IGI LG817693445

Diamond specifications and retailer prices

From $679 NZD
As of November 4, 2026
Save $4,359 NZD (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $5,038 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 LG817693445 or 817693445. Listed at 22 retailers as of November 4, 2026, with prices from $679 to $5,038, a $4,359 spread on the same certified stone. Brilliant Earth lists it at $5,038. 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 angle40.3°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817693445
Dimensions7.52 × 5.14 × 3.30 mm
L/W Ratio1.46
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
7.52 mm5.14 mm1.09 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817693445
Side View
Table 63.0%Crown 40.3°Girdle: Slightly ThickPavilion 33.7°Culet: NoneDepth 64.2%

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: $5,038 NZD|Low: $671 NZD|High: $5,038 NZD|Avg: $1,955 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 22
November 4, 2026
Retailer 6$679 NZD
Retailer 9$759 NZD
Retailer 21$761 NZD
Retailer 5$843 NZD
Retailer 8$843 NZD
Retailer 2$866 NZD
Retailer 20$930 NZD
Retailer 19$1,109 NZD
Retailer 4$1,222 NZD
Retailer 10$1,339 NZD
Retailer 17$1,348 NZD
Retailer 18$1,453 NZD
Retailer 13$1,510 NZD
Retailer 14$2,235 NZD
Retailer 22$2,363 NZD
Retailer 11$2,459 NZD
Retailer 7$2,709 NZD
Retailer 15$2,775 NZD
Retailer 12$3,152 NZD
Retailer 16$3,291 NZD
Retailer 3$4,062 NZD
Brilliant Earth$5,038 NZD

35 data points across 22 retailers

22 retailers$679 NZD to $5,038 NZD

A
Cheapest Retailer
-
$679 NZD
A
Retailer 2
-
$759 NZD
View
Final sale: no returns
A
Retailer 3
-
$761 NZD
View
Retailer 4
-
$843 NZD
View
Price last confirmed 10 days ago
A
Retailer 5
-
$843 NZD
View
A
Retailer 6
-
$866 NZD
View
A
Retailer 7
-
$930 NZD
View
A
Retailer 8
-
$1,109 NZD
View
B+
Retailer 9
-
$1,222 NZD
View
B+
Retailer 10
-
$1,339 NZD
View
B+
Retailer 11
-
$1,348 NZD
View
B+
Retailer 12
-
$1,453 NZD
View
B+
Retailer 13
-
$1,510 NZD
View
B
Retailer 14
-
$2,235 NZD
View
B+
Retailer 15
-
$2,363 NZD
View
B
Retailer 16
-
$2,459 NZD
View
B
Retailer 17
-
$2,709 NZD
View
B
Retailer 18
-
$2,775 NZD
View
B
Retailer 19
-
$3,152 NZD
View
B
Retailer 20
-
$3,291 NZD
View
B
Retailer 21
-
$4,062 NZD
View
Most Expensive
B
Brilliant Earth
20860153A · Nov 4
$5,038 NZD
$2,840 USD
View
21 more retailers have this diamond
Prices start from $679 NZDSave up to $4,359 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
$679 NZD