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Radiant|Lab Grown|IGI

0.66ct F SI1 Radiant Lab Grown Diamond

EX • F/SI1 • IGI LG623409249

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG623409249

Diamond specifications and retailer prices

From $672 AUD
£371 GBP
As of November 2, 2026
1 retailer carries this diamond
Only listing: $672 AUD at MD Diamonds and Jewellers
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at MD Diamonds and Jewellers

About this 0.66ct lab-grown radiant diamond

This 0.66ct lab-grown radiant sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG623409249 or 623409249. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

0.66
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle54.3°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623409249
Dimensions6.17 × 4.20 × 2.95 mm
L/W Ratio1.47
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.17 mm4.20 mm0.66 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623409249
Side View
Table 68.0%Crown 54.3°Girdle: MED-STKPavilion 40°Culet: NoneDepth 70.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $672 AUD|Low: $265 AUD|High: $840 AUD|Avg: $638 AUD
MD Diamonds and Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
September 13, 2026
Retailer 4$274 AUD
Retailer 2$356 AUD
Retailer 3$587 AUD
MD Diamonds and Jewellers$672 AUD
Retailer 6$692 AUD
Retailer 5$729 AUD

13 data points across 6 retailers

1 retailer

B
MD Diamonds and Jewellers
LG623409249 · Nov 2
$672 AUD
£371 GBP
View

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
0.66ct Radiant
$672 AUD