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Radiant|Lab Grown|IGI

1.64ct F IF Radiant Lab Grown Diamond

EX • F/IF • IGI LG729575026

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

Certificate IGI LG729575026

Diamond specifications and retailer prices

From €432 EUR
As of November 2, 2026
Save €1,840 EUR (81%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €2,272 EUR at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 1.64ct lab-grown radiant diamond

This 1.64ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG729575026 or 729575026. Listed at 7 retailers as of November 2, 2026, with prices from €432 to €2,272, a €1,840 spread on the same certified stone. Brilliant Earth lists it at €2,272. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.64
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729575026
Dimensions8.30 × 5.84 × 3.91 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.30 mm5.84 mm1.64 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729575026
Side View
Table 63.0%Crown 42°Girdle: Slightly ThickPavilion 34.9°Culet: NoneDepth 67.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €2,272 EUR|Low: €431 EUR|High: €2,896 EUR|Avg: €1,331 EUR|-21.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 4€432 EUR
Retailer 2€494 EUR
Retailer 5€907 EUR
Retailer 3€1,053 EUR
Retailer 6€2,067 EUR
Brilliant Earth€2,272 EUR

43 data points across 6 retailers

7 retailers€432 EUR to €2,272 EUR

A
Cheapest Retailer
-
€432 EUR
A
Retailer 2
-
€494 EUR
View
B+
Retailer 3
-
€907 EUR
View
B+
Retailer 4
-
€1,039 EUR
View
B+
Retailer 5
-
€1,053 EUR
View
Retailer 6
-
€2,067 EUR
View
Price last confirmed 19 days ago
Most Expensive
B
Brilliant Earth
16021313A · Nov 5
€2,272 EUR
$2,550 USD
View
6 more retailers have this diamond
Prices start from €432 EURSave up to €1,840 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.

A
1.64ct Radiant
€432 EUR