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Round|Lab Grown|IGI

1.05ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG818686964

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818686964

Diamond specifications and retailer prices

From $199 AUD
As of November 5, 2026
Save $950 AUD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,148 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.05ct lab-grown round diamond

This 1.05ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG818686964 or 818686964. Listed at 13 retailers as of November 4, 2026, with prices from $199 to $1,148, a $950 spread on the same certified stone. MOH London lists it at $1,148. 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

1.05
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818686964
Dimensions6.53 × 6.58 × 3.98 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.53 mm6.58 mm1.05 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818686964
Side View
Table 57.0%Crown 34.9°Girdle: MediumPavilion 40.3°Culet: NoneDepth 60.6%

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: $1,148 AUD|Low: $199 AUD|High: $1,217 AUD|Avg: $592 AUD|-4.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9$199 AUD
Retailer 8$230 AUD
Retailer 4$246 AUD
Retailer 5$411 AUD
Retailer 2$437 AUD
Retailer 10$456 AUD
Retailer 11$460 AUD
Retailer 6$586 AUD
Retailer 7$624 AUD
Retailer 3$791 AUD
Retailer 12$870 AUD
MOH London$1,148 AUD

45 data points across 12 retailers

13 retailers$199 AUD to $1,148 AUD

A
Cheapest Retailer
-
$199 AUD
A
Retailer 2
-
$230 AUD
View
A
Retailer 3
-
$246 AUD
View
Retailer 4
-
$257 AUD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$411 AUD
View
A
Retailer 6
-
$437 AUD
View
A
Retailer 7
-
$456 AUD
View
A
Retailer 8
-
$460 AUD
View
B+
Retailer 9
-
$586 AUD
View
B+
Retailer 10
-
$624 AUD
View
B
Retailer 11
-
$791 AUD
View
B
Retailer 12
-
$870 AUD
View
Most Expensive
B
MOH London
LG818686964 · Nov 4
$1,148 AUD
£633 GBP
View
12 more retailers have this diamond
Prices start from $199 AUDSave up to $950 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
1.05ct Round
$199 AUD