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Round|Lab Grown|IGI

1.03ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG766683154

Shape and cutting style on the report: Round brilliant

Certificate IGI LG766683154

Diamond specifications and retailer prices

From $207 AUD
$145 USD
As of November 1, 2026
Save $989 AUD (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,196 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.03ct lab-grown round diamond

This 1.03ct 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 LG766683154 or 766683154. Listed at 10 retailers as of November 1, 2026, with prices from $207 to $1,196, a $989 spread on the same certified stone. MOH London lists it at $1,196. 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

1.03
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766683154
Dimensions6.43 × 6.49 × 4.03 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
6.43 mm6.49 mm1.03 ctG / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG766683154
Side View
Table 57.0%Crown 33.6°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $1,196 AUD|Low: $207 AUD|High: $1,238 AUD|Avg: $537 AUD|-2.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 5$207 AUD
Retailer 9$240 AUD
Retailer 7$255 AUD
Retailer 10$255 AUD
Retailer 2$440 AUD
Retailer 8$444 AUD
Retailer 4$475 AUD
Retailer 6$823 AUD
Retailer 3$869 AUD
MOH London$1,196 AUD

42 data points across 10 retailers

10 retailers$207 AUD to $1,196 AUD

A
Cheapest Retailer
-
$207 AUD
$145 USD
A
Retailer 2
-
$240 AUD
$168 USD
View
Retailer 3
-
$255 AUD
$179 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$255 AUD
$179 USD
View
A
Retailer 5
-
$440 AUD
£243 GBP
View
B+
Retailer 6
-
$444 AUD
$311 USD
View
B+
Retailer 7
-
$475 AUD
$333 USD
View
B
Retailer 8
-
$823 AUD
$577 USD
View
B
Retailer 9
-
$869 AUD
$609 USD
View
Most Expensive
B
MOH London
LG766683154 · Nov 1
$1,196 AUD
£660 GBP
View
9 more retailers have this diamond
Prices start from $207 AUDSave up to $989 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
1.03ct Round
$207 AUD