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1.30ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG757504789

Shape and cutting style on the report: Round brilliant

Certificate IGI LG757504789

Diamond specifications and retailer prices

From $606 AUD
As of November 6, 2026
Save $1,025 AUD (63%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,631 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 1.3ct lab-grown round diamond

This 1.3ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG757504789 or 757504789. Listed at 7 retailers as of November 2, 2026, with prices from $606 to $1,631, a $1,025 spread on the same certified stone. MOH London lists it at $1,631. 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

1.30
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG757504789
Dimensions7.00 × 6.96 × 4.33 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
7.00 mm6.96 mm1.30 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG757504789
Side View
Table 59.0%Crown 33.6°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $1,631 AUD|Low: $566 AUD|High: $1,633 AUD|Avg: $816 AUD|+1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6$583 AUD
Retailer 5$606 AUD
Retailer 3$621 AUD
Retailer 2$626 AUD
Retailer 4$704 AUD
Retailer 7$793 AUD
MOH London$1,631 AUD

44 data points across 7 retailers

7 retailers$606 AUD to $1,631 AUD

Retailer 1
-
$583 AUD
Price last confirmed 8 days ago
A
Retailer 2
-
$606 AUD
View
A
Retailer 3
-
$621 AUD
View
A
Retailer 4
-
$626 AUD
View
B+
Retailer 5
-
$704 AUD
View
B+
Retailer 6
-
$793 AUD
View
Most Expensive
B
MOH London
LG757504789 · Nov 2
$1,631 AUD
£899 GBP
View
6 more retailers have this diamond
Prices start from $606 AUDSave up to $1,025 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
1.30ct Round
$606 AUD