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Round|Lab Grown|IGI

1.29ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG720547210

Shape and cutting style on the report: Round brilliant

Certificate IGI LG720547210

Diamond specifications and retailer prices

From $859 AUD
$590 USD
As of November 5, 2026
2 retailers carry this diamond
Most expensive: $859 AUD at Brilliant Earth
View at Brilliant Earth

About this 1.29ct lab-grown round diamond

This 1.29ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG720547210 or 720547210. Listed at 2 retailers as of November 5, 2026. 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

1.29
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720547210
Dimensions7.16 × 7.11 × 4.23 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
7.16 mm7.11 mm1.29 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720547210
Side View
Table 59.0%Crown 32.9°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 59.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: $859 AUD|Low: $247 AUD|High: $1,499 AUD|Avg: $810 AUD|-20.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
July 28, 2026
Retailer 5$454 AUD
Retailer 3$505 AUD
Retailer 7$515 AUD
Retailer 2$600 AUD
Retailer 4$716 AUD
Retailer 6$742 AUD
Brilliant Earth$859 AUD
Retailer 8$860 AUD
Retailer 9$1,032 AUD

77 data points across 9 retailers

2 retailers

Retailer 1
-
$716 AUD
Price last confirmed 90 days ago
Most Expensive
B
Brilliant Earth
19018402A · Nov 5
$859 AUD
$590 USD
View
1 more retailer has this diamond

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.

B
1.29ct Round
$859 AUD