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Round|Lab Grown|IGI

1.20ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG837615667

Shape and cutting style on the report: Round brilliant

Certificate IGI LG837615667

Diamond specifications and retailer prices

From $419 NZD
As of November 3, 2026
Save $2,207 NZD (84%) vs most expensive(unlock to see where)
20 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 LG837615667 or 837615667. Listed at 20 retailers as of November 2, 2026, with prices from $419 to $2,626, a $2,207 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 angle33.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837615667
Dimensions6.92 × 6.87 × 4.13 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
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
6.92 mm6.87 mm1.20 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837615667
Side View
Table 60.0%Crown 33.6°Girdle: MediumPavilion 40.9°Culet: NoneDepth 59.8%

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 3
Current: $2,626 NZD|Low: $415 NZD|High: $2,626 NZD|Avg: $1,157 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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 5, 2026
Retailer 18$419 NZD
Retailer 19$467 NZD
Retailer 2$486 NZD
Retailer 11$514 NZD
Retailer 8$520 NZD
Retailer 9$713 NZD
Retailer 13$821 NZD
Retailer 17$873 NZD
Retailer 6$896 NZD
Retailer 7$944 NZD
Retailer 12$969 NZD
Retailer 5$1,270 NZD
Retailer 16$1,313 NZD
Retailer 4$1,668 NZD
Retailer 3$1,760 NZD
Retailer 10$2,074 NZD
Retailer 15$2,129 NZD
Retailer 14$2,320 NZD
Brilliant Earth$2,626 NZD

23 data points across 19 retailers

20 retailers$419 NZD to $2,626 NZD

A
Cheapest Retailer
-
$419 NZD
A
Retailer 2
-
$467 NZD
View
Final sale: no returns
A
Retailer 3
-
$486 NZD
View
Retailer 4
-
$514 NZD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$520 NZD
View
A
Retailer 6
-
$713 NZD
View
A
Retailer 7
-
$821 NZD
View
A
Retailer 8
-
$873 NZD
View
A
Retailer 9
-
$896 NZD
View
A
Retailer 10
-
$944 NZD
View
A
Retailer 11
-
$969 NZD
View
B+
Retailer 12
-
$1,233 NZD
View
B+
Retailer 13
-
$1,270 NZD
View
B+
Retailer 14
-
$1,313 NZD
View
B+
Retailer 15
-
$1,668 NZD
View
B+
Retailer 16
-
$1,760 NZD
View
B+
Retailer 17
-
$2,074 NZD
View
B+
Retailer 18
-
$2,129 NZD
View
B+
Retailer 19
-
$2,320 NZD
View
Most Expensive
B
Brilliant Earth
21690652A · Nov 2
$2,626 NZD
$1,480 USD
View
19 more retailers have this diamond
Prices start from $419 NZDSave up to $2,207 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
$419 NZD