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Radiant|Lab Grown|IGI

1.09ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG594329347

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

Certificate IGI LG594329347

Diamond specifications and retailer prices

From $743 SGD
£458 GBP
As of November 2, 2026
1 retailer carries this diamond
Only listing: $743 SGD at Diamond Quarter
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 Diamond Quarter

About this 1.09ct lab-grown radiant diamond

This 1.09ct lab-grown radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG594329347 or 594329347. 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

1.09
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG594329347
Dimensions7.29 × 5.07 × 3.43 mm
L/W Ratio1.44
Culet sizePointed
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
7.29 mm5.07 mm1.09 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG594329347
Side View
Table 65.0%Crown 46°Girdle: MED-STKPavilion 35.8°Culet: NoneDepth 67.7%

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: $454 SGD|Low: $275 SGD|High: $1,471 SGD|Avg: $821 SGD|+64.9%
Retailer 1
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Retailer 11
April 14, 2026
Retailer 10$377 SGD
Retailer 1$454 SGD
Retailer 6$496 SGD
Retailer 7$509 SGD
Retailer 2$512 SGD
Retailer 4$587 SGD
Retailer 5$1,093 SGD
Retailer 9$1,228 SGD
Retailer 11$1,228 SGD
Retailer 3$1,279 SGD
Retailer 8$1,471 SGD

27 data points across 11 retailers

1 retailer

B
Diamond Quarter
1.09SI1FLG475AEFN · Nov 2
$743 SGD
£458 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
1.09ct Radiant
$743 SGD