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Marquise|Lab Grown|IGI

1.20ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG799699355

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG799699355

Diamond specifications and retailer prices

From $745 NZD
As of November 4, 2026
Save $2,147 NZD (74%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,892 NZD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.2ct lab-grown marquise diamond

This 1.2ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799699355 or 799699355. Listed at 10 retailers as of November 4, 2026, with prices from $745 to $2,892, a $2,147 spread on the same certified stone. Brilliant Earth lists it at $2,892. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799699355
Dimensions10.84 × 5.52 × 3.50 mm
L/W Ratio1.96
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
10.84 mm5.52 mm1.20 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799699355
Side View
Table 61.0%Crown 34.4°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 63.4%

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 4
Current: $2,892 NZD|Low: $745 NZD|High: $4,431 NZD|Avg: $1,701 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 8$745 NZD
Retailer 4$946 NZD
Retailer 6$997 NZD
Retailer 2$1,040 NZD
Retailer 5$1,377 NZD
Retailer 7$1,864 NZD
Retailer 3$2,212 NZD
Retailer 9$2,776 NZD
Brilliant Earth$2,892 NZD

40 data points across 9 retailers

10 retailers$745 NZD to $2,892 NZD

Retailer 1
-
$726 NZD
Price last confirmed 62 days ago
A
Retailer 2
-
$745 NZD
View
Retailer 3
-
$946 NZD
View
Price last confirmed 9 days ago
A
Retailer 4
-
$997 NZD
View
A
Retailer 5
-
$1,040 NZD
View
B+
Retailer 6
-
$1,377 NZD
View
B+
Retailer 7
-
$1,864 NZD
View
B+
Retailer 8
-
$2,212 NZD
View
Retailer 9
-
$2,776 NZD
View
Price last confirmed 15 days ago
Most Expensive
B
Brilliant Earth
19847259A · Nov 4
$2,892 NZD
$1,630 USD
View
9 more retailers have this diamond
Prices start from $745 NZDSave up to $2,147 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 Marquise
$745 NZD