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Round|Lab Grown|IGI

1.09ct E SI2 Round Lab Grown Diamond

ID • E/SI2 • IGI LG780687717

Shape and cutting style on the report: Round brilliant

Certificate IGI LG780687717

Diamond specifications and retailer prices

From $261 NZD
As of November 5, 2026
Save $1,245 NZD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,507 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1.09ct lab-grown round diamond

This 1.09ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG780687717 or 780687717. Listed at 17 retailers as of November 4, 2026, with prices from $261 to $1,507, a $1,245 spread on the same certified stone. MOH London lists it at $1,507. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.09
Carat
E
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780687717
Dimensions6.61 × 6.57 × 4.11 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
6.61 mm6.57 mm1.09 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780687717
Side View
Table 56.0%Crown 35.6°Girdle: MediumPavilion 41.1°Culet: NoneDepth 62.4%

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 5
Current: $1,507 NZD|Low: $254 NZD|High: $1,511 NZD|Avg: $672 NZD|+1.1%
MOH London
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
November 6, 2026
Retailer 13$261 NZD
Retailer 3$292 NZD
Retailer 12$302 NZD
Retailer 8$317 NZD
Retailer 4$324 NZD
Retailer 14$436 NZD
Retailer 2$548 NZD
Retailer 7$551 NZD
Retailer 10$605 NZD
Retailer 16$672 NZD
Retailer 9$742 NZD
Retailer 6$747 NZD
Retailer 15$763 NZD
Retailer 5$1,039 NZD
Retailer 11$1,098 NZD
MOH London$1,507 NZD

34 data points across 16 retailers

17 retailers$261 NZD to $1,507 NZD

A
Cheapest Retailer
-
$261 NZD
A
Retailer 2
-
$292 NZD
View
Final sale: no returns
A
Retailer 3
-
$302 NZD
View
Retailer 4
-
$317 NZD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$324 NZD
View
B+
Retailer 6
-
$436 NZD
View
A
Retailer 7
-
$548 NZD
View
Retailer 8
-
$551 NZD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$605 NZD
View
B+
Retailer 10
-
$672 NZD
View
B+
Retailer 11
-
$742 NZD
View
B+
Retailer 12
-
$747 NZD
View
B+
Retailer 13
-
$763 NZD
View
B+
Retailer 14
-
$829 NZD
View
B
Retailer 15
-
$1,039 NZD
View
B
Retailer 16
-
$1,098 NZD
View
Most Expensive
B
MOH London
LG780687717 · Nov 4
$1,507 NZD
£667 GBP
View
16 more retailers have this diamond
Prices start from $261 NZDSave up to $1,245 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
1.09ct Round
$261 NZD