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Radiant|Lab Grown|IGI

2.57ct F IF Radiant Lab Grown Diamond

GD • F/IF • IGI LG731565741

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

Certificate IGI LG731565741

Diamond specifications and retailer prices

From €442 EUR
$494 USD
As of November 2, 2026
Save €4,490 EUR (91%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €4,932 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.57ct lab-grown radiant diamond

This 2.57ct lab-grown radiant sits in the two to three carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG731565741 or 731565741. Listed at 25 retailers as of October 31, 2026, with prices from €442 to €4,932, a €4,490 spread on the same certified stone. Brilliant Earth lists it at €4,932. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.57
Carat
F
Color
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.1°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731565741
Dimensions9.86 × 6.78 × 4.54 mm
L/W Ratio1.45
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
9.86 mm6.78 mm2.57 ctF / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731565741
Side View
Table 65.0%Crown 44.1°Girdle: MediumPavilion 35°Culet: NoneDepth 67.0%

Caratlytics Score

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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: €4,932 EUR|Low: €442 EUR|High: €6,391 EUR|Avg: €1,705 EUR|-22.8%
Brilliant Earth
Retailer 2
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Retailer 22
November 2, 2026
Retailer 9€442 EUR
Retailer 19€495 EUR
Retailer 7€496 EUR
Retailer 20€549 EUR
Retailer 2€580 EUR
Retailer 17€622 EUR
Retailer 4€772 EUR
Retailer 16€836 EUR
Retailer 21€862 EUR
Retailer 13€913 EUR
Retailer 18€1,266 EUR
Retailer 10€1,281 EUR
Retailer 22€1,324 EUR
Retailer 3€1,444 EUR
Retailer 11€1,788 EUR
Retailer 6€1,803 EUR
Retailer 15€1,828 EUR
Retailer 5€1,910 EUR
Retailer 8€2,053 EUR
Retailer 14€2,761 EUR
Retailer 12€3,759 EUR
Brilliant Earth€4,932 EUR

28 data points across 22 retailers

25 retailers€442 EUR to €4,932 EUR

A
Cheapest Retailer
-
€442 EUR
$494 USD
A
Retailer 2
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€495 EUR
$553 USD
View
Final sale: no returns
A
Retailer 3
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€496 EUR
$554 USD
View
A
Retailer 4
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€549 EUR
$613 USD
View
A
Retailer 5
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€580 EUR
£511 GBP
View
A
Retailer 6
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€622 EUR
$695 USD
View
Retailer 7
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€628 EUR
$702 USD
View
Price last confirmed 20 days ago
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Retailer 8
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€772 EUR
$862 USD
View
A
Retailer 9
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€836 EUR
View
A
Retailer 10
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€862 EUR
$963 USD
View
A
Retailer 11
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€913 EUR
£803 GBP
View
A
Retailer 12
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€1,266 EUR
$1,414 USD
View
A
Retailer 13
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€1,281 EUR
$1,431 USD
View
A
Retailer 14
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€1,324 EUR
ZAR 23,904 ZAR
View
A
Retailer 15
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€1,444 EUR
$1,613 USD
View
Retailer 16
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€1,559 EUR
$1,742 USD
View
Price last confirmed 7 days ago
A
Retailer 17
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€1,788 EUR
$1,998 USD
View
B+
Retailer 18
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€1,803 EUR
$2,014 USD
View
Retailer 19
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€1,828 EUR
£1,608 GBP
View
Price last confirmed 21 days ago
B+
Retailer 20
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€1,910 EUR
$2,133 USD
View
B+
Retailer 21
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€1,915 EUR
$2,139 USD
View
B+
Retailer 22
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€2,053 EUR
$2,294 USD
View
Retailer 23
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€2,761 EUR
£2,429 GBP
View
Price last confirmed 22 days ago
Retailer 24
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€3,759 EUR
$4,200 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
15784517A · Oct 31
€4,932 EUR
$5,510 USD
View
24 more retailers have this diamond
Prices start from €442 EURSave up to €4,490 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
2.57ct Radiant
€442 EUR