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Radiant|Lab Grown|IGI

1.59ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG569320440

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

Certificate IGI LG569320440

Diamond specifications and retailer prices

From €927 EUR
As of November 5, 2026
Save €542 EUR (37%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €1,469 EUR at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.59ct lab-grown radiant diamond

This 1.59ct 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 LG569320440 or 569320440. Listed at 2 retailers as of November 5, 2026, with prices from €927 to €1,469, a €542 spread on the same certified stone. Brilliant Earth lists it at €1,469. 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

1.59
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.4°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG569320440
Dimensions8.36 × 5.64 × 3.85 mm
L/W Ratio1.48
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
8.36 mm5.64 mm1.59 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG569320440
Side View
Table 65.0%Crown 42.4°Girdle: MED-STKPavilion 34.1°Culet: NoneDepth 68.3%

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: €1,469 EUR|Low: €388 EUR|High: €1,469 EUR|Avg: €777 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
March 23, 2026
Retailer 3€388 EUR
Retailer 5€532 EUR
Retailer 2€570 EUR
Retailer 4€789 EUR
Brilliant Earth€1,469 EUR

28 data points across 5 retailers

2 retailers€927 EUR to €1,469 EUR

B
Cheapest Retailer
-
€927 EUR
Most Expensive
B
Brilliant Earth
6877097Y · Nov 6
€1,469 EUR
$1,640 USD
View
1 more retailer has this diamond
Prices start from €927 EURSave up to €542 EUR

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
1.59ct Radiant
€927 EUR