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Radiant|Lab Grown|IGI

1.83ct F SI1 Radiant Lab Grown Diamond

EX • F/SI1 • IGI LG847642379

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

Certificate IGI LG847642379

Diamond specifications and retailer prices

From $705 NZD
£312 GBP
As of October 27, 2026
2 retailers carry this diamond
Most expensive: $2,417 NZD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 1.83ct lab-grown radiant diamond

This 1.83ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG847642379 or 847642379. Listed at 2 retailers as of October 26, 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

1.83
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.3°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847642379
Dimensions8.72 × 5.98 × 4.03 mm
L/W Ratio1.46
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.72 mm5.98 mm1.83 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847642379
Side View
Table 65.0%Crown 47.3°Girdle: MediumPavilion 34.3°Culet: NoneDepth 67.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: $2,417 NZD|Low: $347 NZD|High: $2,417 NZD|Avg: $1,429 NZD
Brilliant Earth
Retailer 2
Retailer 3
October 28, 2026
Retailer 2$347 NZD
Retailer 3$705 NZD
Brilliant Earth$2,417 NZD

4 data points across 3 retailers

2 retailers$705 NZD to $2,417 NZD

A
Retailer 1
-
$705 NZD
£312 GBP
Price last confirmed 7 days ago
Most Expensive
Brilliant Earth
22227176A · Oct 26
$2,417 NZD
$1,360 USD
View
Price last confirmed 7 days ago
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.

A
1.83ct Radiant
$705 NZD