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Oval|Lab Grown|IGI

1.13ct D SI1 Oval Lab Grown Diamond

GD • D/SI1 • IGI LG508138146

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG508138146

Diamond specifications and retailer prices

From $626 NZD
As of November 6, 2026
Save $1,053 NZD (63%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,679 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1.13ct lab-grown oval diamond

This 1.13ct lab-grown oval sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG508138146 or 508138146. Listed at 5 retailers as of November 4, 2026, with prices from $626 to $1,679, a $1,053 spread on the same certified stone. MOH London lists it at $1,679. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.13
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508138146
Dimensions8.24 × 5.89 × 3.69 mm
L/W Ratio1.40
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
8.24 mm5.89 mm1.13 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG508138146
Side View
Table 61.0%Crown 37.7°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $1,679 NZD|Low: $592 NZD|High: $2,066 NZD|Avg: $1,017 NZD|-18.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2$626 NZD
Retailer 5$653 NZD
Retailer 4$702 NZD
Retailer 3$806 NZD
MOH London$1,679 NZD

43 data points across 5 retailers

5 retailers$626 NZD to $1,679 NZD

A
Cheapest Retailer
-
$626 NZD
B+
Retailer 2
-
$653 NZD
View
B+
Retailer 3
-
$702 NZD
View
B+
Retailer 4
-
$806 NZD
View
Most Expensive
B
MOH London
LG508138146 · Nov 4
$1,679 NZD
£733 GBP
View
4 more retailers have this diamond
Prices start from $626 NZDSave up to $1,053 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
1.13ct Oval
$626 NZD