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Oval|Lab Grown|IGI

1.20ct D FL Oval Lab Grown Diamond

ID • D/FL • IGI LG818662385

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818662385

Diamond specifications and retailer prices

From $410 NZD
As of November 3, 2026
Save $3,067 NZD (88%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,477 NZD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.2ct lab-grown oval diamond

This 1.2ct lab-grown oval 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 LG818662385 or 818662385. Listed at 18 retailers as of November 3, 2026, with prices from $410 to $3,477, a $3,067 spread on the same certified stone. Brilliant Earth lists it at $3,477. 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 angle34.7°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818662385
Dimensions8.48 × 5.98 × 3.67 mm
L/W Ratio1.42
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
8.48 mm5.98 mm1.20 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818662385
Side View
Table 60.0%Crown 34.7°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
A+
Exceptional
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: $3,477 NZD|Low: $410 NZD|High: $4,648 NZD|Avg: $1,494 NZD|-25.2%
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
November 5, 2026
Retailer 14$410 NZD
Retailer 3$458 NZD
Retailer 17$475 NZD
Retailer 7$507 NZD
Retailer 10$522 NZD
Retailer 12$862 NZD
Retailer 9$894 NZD
Retailer 8$899 NZD
Retailer 13$947 NZD
Retailer 16$1,332 NZD
Retailer 15$1,632 NZD
Retailer 18$1,639 NZD
Retailer 5$1,691 NZD
Retailer 4$1,724 NZD
Retailer 6$1,822 NZD
Retailer 2$2,029 NZD
Retailer 11$2,776 NZD
Brilliant Earth$3,477 NZD

33 data points across 18 retailers

18 retailers$410 NZD to $3,477 NZD

A+
Cheapest Retailer
-
$410 NZD
A
Retailer 2
-
$458 NZD
View
Final sale: no returns
A
Retailer 3
-
$475 NZD
View
A
Retailer 4
-
$507 NZD
View
Retailer 5
-
$522 NZD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$862 NZD
View
A
Retailer 7
-
$894 NZD
View
A
Retailer 8
-
$899 NZD
View
A
Retailer 9
-
$947 NZD
View
B+
Retailer 10
-
$1,332 NZD
View
B+
Retailer 11
-
$1,632 NZD
View
B+
Retailer 12
-
$1,639 NZD
View
B+
Retailer 13
-
$1,691 NZD
View
B+
Retailer 14
-
$1,724 NZD
View
B+
Retailer 15
-
$1,822 NZD
View
B+
Retailer 16
-
$2,029 NZD
View
B
Retailer 17
-
$2,776 NZD
View
Most Expensive
B
Brilliant Earth
21418949A · Nov 4
$3,477 NZD
$1,960 USD
View
17 more retailers have this diamond
Prices start from $410 NZDSave up to $3,067 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 Oval
$410 NZD