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1.58ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG747511658

Shape and cutting style on the report: Round brilliant

Certificate IGI LG747511658

Diamond specifications and retailer prices

From $762 NZD
€409 EUR
As of October 31, 2026
Save $1,086 NZD (59%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,848 NZD at MOH London · As of October 26, 2026
View at MOH London

About this 1.58ct lab-grown round diamond

This 1.58ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG747511658 or 747511658. Listed at 12 retailers as of October 26, 2026, with prices from $762 to $1,848, a $1,086 spread on the same certified stone. MOH London lists it at $1,848. 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

1.58
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG747511658
Dimensions7.51 × 7.45 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.51 mm7.45 mm1.58 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG747511658
Side View
Table 58.0%Crown 35.4°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.2%

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: Oct 31
Current: $1,848 NZD|Low: $461 NZD|High: $1,868 NZD|Avg: $1,091 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7$461 NZD
Retailer 3$762 NZD
Retailer 8$791 NZD
Retailer 2$841 NZD
Retailer 9$919 NZD
Retailer 5$1,196 NZD
Retailer 4$1,277 NZD
Retailer 6$1,597 NZD
MOH London$1,848 NZD

43 data points across 9 retailers

12 retailers$762 NZD to $1,848 NZD

Retailer 1
-
$461 NZD
$260 USD
Price last confirmed 8 days ago
A
Retailer 2
-
$762 NZD
€409 EUR
View
B+
Retailer 3
-
$791 NZD
$446 USD
View
A
Retailer 4
-
$841 NZD
£373 GBP
View
A
Retailer 5
-
$877 NZD
$494 USD
View
B+
Retailer 6
-
$919 NZD
$518 USD
View
B+
Retailer 7
-
$1,196 NZD
$674 USD
View
B+
Retailer 8
-
$1,277 NZD
$720 USD
View
Retailer 9
-
$1,295 NZD
$730 USD
View
Price last confirmed 15 days ago
B
Retailer 10
-
$1,575 NZD
$887 USD
View
B
Retailer 11
-
$1,597 NZD
$900 USD
View
Most Expensive
B
MOH London
LG747511658 · Oct 26
$1,848 NZD
£820 GBP
View
11 more retailers have this diamond
Prices start from $762 NZDSave up to $1,086 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
1.58ct Round
$762 NZD