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Round|Lab Grown|IGI

2.57ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG788625581

Shape and cutting style on the report: Round brilliant

Certificate IGI LG788625581

Diamond specifications and retailer prices

From €516 EUR
$579 USD
As of November 1, 2026
Save €6,358 EUR (92%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €6,874 EUR at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 2.57ct lab-grown round diamond

This 2.57ct lab-grown round sits in the two to three carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG788625581 or 788625581. Listed at 19 retailers as of November 1, 2026, with prices from €516 to €6,874, a €6,358 spread on the same certified stone. Brilliant Earth lists it at €6,874. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.57
Carat
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788625581
Dimensions8.74 × 8.71 × 5.43 mm
L/W Ratio1.00
Girdle conditionFaceted
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
8.74 mm8.71 mm2.57 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788625581
Side View
Table 58.0%Crown 35.7°Girdle: MediumPavilion 41.1°Culet: NoneDepth 62.3%

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 1
Current: €997 EUR|Low: €516 EUR|High: €2,902 EUR|Avg: €1,260 EUR|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 3, 2026
Retailer 10€516 EUR
Retailer 4€578 EUR
Retailer 16€578 EUR
Retailer 15€640 EUR
Retailer 8€657 EUR
Retailer 2€758 EUR
Retailer 11€858 EUR
Retailer 13€934 EUR
Retailer 1€997 EUR
Retailer 5€1,422 EUR
Retailer 9€1,588 EUR
Retailer 14€1,669 EUR
Retailer 3€1,683 EUR
Retailer 6€2,072 EUR
Retailer 12€2,142 EUR
Retailer 7€2,812 EUR

23 data points across 16 retailers

19 retailers€516 EUR to €6,874 EUR

A
Cheapest Retailer
-
€516 EUR
$579 USD
A
Retailer 2
-
€578 EUR
$648 USD
View
Final sale: no returns
A
Retailer 3
-
€578 EUR
$648 USD
View
A
Retailer 4
-
€640 EUR
$718 USD
View
Retailer 5
-
€657 EUR
$737 USD
View
Price last confirmed 17 days ago
A
Retailer 6
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€758 EUR
$850 USD
View
A
Retailer 7
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€858 EUR
$962 USD
View
A
Retailer 8
-
€934 EUR
$1,048 USD
View
A
Retailer 9
-
€997 EUR
£880 GBP
View
A
Retailer 10
-
€1,422 EUR
A$2,453 AUD
View
B+
Retailer 11
-
€1,588 EUR
$1,781 USD
View
B+
Retailer 12
-
€1,669 EUR
$1,872 USD
View
B+
Retailer 13
-
€1,683 EUR
$1,888 USD
View
B+
Retailer 14
-
€2,072 EUR
$2,324 USD
View
B+
Retailer 15
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€2,138 EUR
$2,398 USD
View
B+
Retailer 16
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€2,142 EUR
$2,403 USD
View
B+
Retailer 17
-
€2,812 EUR
£2,483 GBP
View
B
Retailer 18
-
€4,489 EUR
$5,035 USD
View
Most Expensive
B
Brilliant Earth
20845258A · Nov 1
€6,874 EUR
$7,710 USD
View
18 more retailers have this diamond
Prices start from €516 EURSave up to €6,358 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 Round
€516 EUR