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Round|Lab Grown|IGI

1.20ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG843613181

Shape and cutting style on the report: Round brilliant

Certificate IGI LG843613181

Diamond specifications and retailer prices

From $681 NZD
As of November 4, 2026
Save $1,944 NZD (74%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,626 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG843613181 or 843613181. Listed at 14 retailers as of November 4, 2026, with prices from $681 to $2,626, a $1,944 spread on the same certified stone. Brilliant Earth lists it at $2,626. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843613181
Dimensions6.85 × 6.88 × 4.13 mm
L/W Ratio1.00
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
6.85 mm6.88 mm1.20 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843613181
Side View
Table 58.0%Crown 34.1°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 60.2%

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 4
Current: $2,626 NZD|Low: $681 NZD|High: $2,626 NZD|Avg: $1,501 NZD
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 5, 2026
Retailer 3$681 NZD
Retailer 4$834 NZD
Retailer 10$977 NZD
Retailer 8$1,015 NZD
Retailer 2$1,116 NZD
Retailer 11$1,252 NZD
Retailer 12$1,311 NZD
Retailer 9$1,978 NZD
Retailer 5$1,985 NZD
Retailer 7$2,138 NZD
Retailer 13$2,200 NZD
Retailer 6$2,356 NZD
Brilliant Earth$2,626 NZD

14 data points across 13 retailers

14 retailers$681 NZD to $2,626 NZD

A
Cheapest Retailer
-
$681 NZD
A
Retailer 2
-
$834 NZD
View
A
Retailer 3
-
$977 NZD
View
A
Retailer 4
-
$1,015 NZD
View
A
Retailer 5
-
$1,116 NZD
View
B+
Retailer 6
-
$1,252 NZD
View
B+
Retailer 7
-
$1,311 NZD
View
B
Retailer 8
-
$1,978 NZD
View
B
Retailer 9
-
$1,985 NZD
View
B
Retailer 10
-
$2,022 NZD
View
B+
Retailer 11
-
$2,138 NZD
View
B
Retailer 12
-
$2,200 NZD
View
B+
Retailer 13
-
$2,356 NZD
View
Most Expensive
B
Brilliant Earth
22234357A · Nov 4
$2,626 NZD
$1,480 USD
View
13 more retailers have this diamond
Prices start from $681 NZDSave up to $1,944 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
$681 NZD