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Round|Lab Grown|IGI

1.20ct D IF Round Lab Grown Diamond

EX • D/IF • IGI LG842604216

Shape and cutting style on the report: Round brilliant

Certificate IGI LG842604216

Diamond specifications and retailer prices

From $387 NZD
As of November 1, 2026
Save $2,239 NZD (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,626 NZD at Brilliant Earth · As of November 2, 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 LG842604216 or 842604216. Listed at 19 retailers as of November 1, 2026, with prices from $387 to $2,626, a $2,239 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842604216
Dimensions6.75 × 6.79 × 4.26 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
6.75 mm6.79 mm1.20 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842604216
Side View
Table 57.0%Crown 35.4°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 63.0%

Caratlytics Score

How it works →
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: $2,626 NZD|Low: $387 NZD|High: $3,016 NZD|Avg: $1,180 NZD|-12.9%
Brilliant Earth
Retailer 2
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Retailer 21
November 2, 2026
Retailer 21$387 NZD
Retailer 8$433 NZD
Retailer 19$449 NZD
Retailer 9$481 NZD
Retailer 10$481 NZD
Retailer 5$765 NZD
Retailer 11$823 NZD
Retailer 15$828 NZD
Retailer 17$830 NZD
Retailer 13$882 NZD
Retailer 7$908 NZD
Retailer 18$1,173 NZD
Retailer 20$1,222 NZD
Retailer 2$1,267 NZD
Retailer 4$1,543 NZD
Retailer 12$1,609 NZD
Retailer 14$1,636 NZD
Retailer 6$1,712 NZD
Retailer 16$1,923 NZD
Retailer 3$2,351 NZD
Brilliant Earth$2,626 NZD

19 data points across 21 retailers

19 retailers$387 NZD to $2,626 NZD

A
Cheapest Retailer
-
$387 NZD
A
Retailer 2
-
$449 NZD
View
A
Retailer 3
-
$481 NZD
View
Retailer 4
-
$481 NZD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$823 NZD
View
A
Retailer 6
-
$828 NZD
View
A
Retailer 7
-
$830 NZD
View
A
Retailer 8
-
$882 NZD
View
A
Retailer 9
-
$908 NZD
View
Retailer 10
-
$1,173 NZD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$1,222 NZD
View
B+
Retailer 12
-
$1,267 NZD
View
B+
Retailer 13
-
$1,543 NZD
View
B+
Retailer 14
-
$1,609 NZD
View
B+
Retailer 15
-
$1,636 NZD
View
B+
Retailer 16
-
$1,712 NZD
View
B+
Retailer 17
-
$1,923 NZD
View
B
Retailer 18
-
$2,351 NZD
View
Most Expensive
B
Brilliant Earth
22132106A · Nov 2
$2,626 NZD
$1,480 USD
View
18 more retailers have this diamond
Prices start from $387 NZDSave up to $2,239 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
$387 NZD