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Round|Lab Grown|IGI

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 $611 AUD
€409 EUR
As of October 31, 2026
Save $871 AUD (59%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,483 AUD 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 $611 to $1,483, a $871 spread on the same certified stone. MOH London lists it at $1,483. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,483 AUD|Low: $370 AUD|High: $1,499 AUD|Avg: $875 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7$370 AUD
Retailer 3$611 AUD
Retailer 8$635 AUD
Retailer 2$680 AUD
Retailer 9$737 AUD
Retailer 5$960 AUD
Retailer 4$1,025 AUD
Retailer 6$1,281 AUD
MOH London$1,483 AUD

43 data points across 9 retailers

12 retailers$611 AUD to $1,483 AUD

Retailer 1
-
$370 AUD
$260 USD
Price last confirmed 7 days ago
A
Retailer 2
-
$611 AUD
€409 EUR
View
B+
Retailer 3
-
$635 AUD
$446 USD
View
A
Retailer 4
-
$680 AUD
£376 GBP
View
A
Retailer 5
-
$703 AUD
$494 USD
View
B+
Retailer 6
-
$737 AUD
$518 USD
View
B+
Retailer 7
-
$960 AUD
$674 USD
View
B+
Retailer 8
-
$1,025 AUD
$720 USD
View
Retailer 9
-
$1,039 AUD
$730 USD
View
Price last confirmed 14 days ago
B
Retailer 10
-
$1,263 AUD
$887 USD
View
B
Retailer 11
-
$1,281 AUD
$900 USD
View
Most Expensive
B
MOH London
LG747511658 · Oct 26
$1,483 AUD
£820 GBP
View
11 more retailers have this diamond
Prices start from $611 AUDSave up to $871 AUD

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
$611 AUD