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Round|Lab Grown|IGI

1.20ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG830644653

Shape and cutting style on the report: Round brilliant

Certificate IGI LG830644653

Diamond specifications and retailer prices

From $608 NZD
As of November 3, 2026
Save $4,110 NZD (87%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $4,719 NZD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round 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 LG830644653 or 830644653. Listed at 24 retailers as of November 3, 2026, with prices from $608 to $4,719, a $4,110 spread on the same certified stone. Brilliant Earth lists it at $4,719. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830644653
Dimensions6.86 × 6.92 × 4.16 mm
L/W Ratio1.01
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
6.86 mm6.92 mm1.20 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830644653
Side View
Table 57.0%Crown 33.7°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
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 3
Current: $4,719 NZD|Low: $584 NZD|High: $4,790 NZD|Avg: $1,825 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 17
Retailer 18
Retailer 19
November 5, 2026
Retailer 4$608 NZD
Retailer 5$681 NZD
Retailer 7$706 NZD
Retailer 6$754 NZD
Retailer 10$754 NZD
Retailer 9$1,004 NZD
Retailer 16$1,029 NZD
Retailer 3$1,118 NZD
Retailer 18$1,247 NZD
Retailer 14$1,281 NZD
Retailer 19$1,370 NZD
Retailer 15$1,435 NZD
Retailer 12$1,487 NZD
Retailer 8$2,485 NZD
Retailer 11$2,677 NZD
Retailer 17$2,945 NZD
Retailer 2$3,243 NZD
Retailer 13$4,559 NZD
Brilliant Earth$4,719 NZD

38 data points across 19 retailers

24 retailers$608 NZD to $4,719 NZD

A
Cheapest Retailer
-
$608 NZD
A
Retailer 2
-
$681 NZD
View
Final sale: no returns
A
Retailer 3
-
$706 NZD
View
A
Retailer 4
-
$754 NZD
View
Retailer 5
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$754 NZD
View
Price last confirmed 11 days ago
A
Retailer 6
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$917 NZD
View
A
Retailer 7
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$1,004 NZD
View
A
Retailer 8
-
$1,029 NZD
View
A
Retailer 9
-
$1,118 NZD
View
A
Retailer 10
-
$1,123 NZD
View
B+
Retailer 11
-
$1,281 NZD
View
B+
Retailer 12
-
$1,370 NZD
View
B+
Retailer 13
-
$1,435 NZD
View
B+
Retailer 14
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$1,487 NZD
View
B+
Retailer 15
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$1,808 NZD
View
B+
Retailer 16
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$1,996 NZD
View
B
Retailer 17
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$2,485 NZD
View
B
Retailer 18
-
$2,677 NZD
View
B
Retailer 19
-
$2,915 NZD
View
B
Retailer 20
-
$2,934 NZD
View
B+
Retailer 21
-
$2,945 NZD
View
B
Retailer 22
-
$3,243 NZD
View
B
Retailer 23
-
$4,559 NZD
View
Most Expensive
B
Brilliant Earth
22471297Y · Nov 4
$4,719 NZD
$2,660 USD
View
23 more retailers have this diamond
Prices start from $608 NZDSave up to $4,110 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
1.20ct Round
$608 NZD