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Marquise|Lab Grown|IGI

1.00ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG818655779

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818655779

Diamond specifications and retailer prices

From $589 NZD
As of November 4, 2026
Save $2,498 NZD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,087 NZD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1ct lab-grown marquise diamond

This 1ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818655779 or 818655779. Listed at 12 retailers as of November 4, 2026, with prices from $589 to $3,087, a $2,498 spread on the same certified stone. Brilliant Earth lists it at $3,087. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818655779
Dimensions10.11 × 5.23 × 3.27 mm
L/W Ratio1.93
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
10.11 mm5.23 mm1.00 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818655779
Side View
Table 57.0%Crown 33°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 62.5%

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 4
Current: $3,087 NZD|Low: $589 NZD|High: $3,867 NZD|Avg: $1,528 NZD|-20.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 8$589 NZD
Retailer 12$710 NZD
Retailer 7$843 NZD
Retailer 6$867 NZD
Retailer 9$914 NZD
Retailer 2$930 NZD
Retailer 11$995 NZD
Retailer 10$1,093 NZD
Retailer 4$1,708 NZD
Retailer 3$1,833 NZD
Retailer 5$2,008 NZD
Brilliant Earth$3,087 NZD

45 data points across 12 retailers

12 retailers$589 NZD to $3,087 NZD

A
Cheapest Retailer
-
$589 NZD
A
Retailer 2
-
$710 NZD
View
A
Retailer 3
-
$843 NZD
View
A
Retailer 4
-
$867 NZD
View
A
Retailer 5
-
$914 NZD
View
A
Retailer 6
-
$930 NZD
View
A
Retailer 7
-
$995 NZD
View
A
Retailer 8
-
$1,093 NZD
View
B+
Retailer 9
-
$1,708 NZD
View
B+
Retailer 10
-
$1,833 NZD
View
B+
Retailer 11
-
$2,008 NZD
View
Most Expensive
B
Brilliant Earth
21359035A · Nov 4
$3,087 NZD
$1,740 USD
View
11 more retailers have this diamond
Prices start from $589 NZDSave up to $2,498 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
1.00ct Marquise
$589 NZD