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Radiant|Lab Grown|IGI

2.57ct D FL Radiant Lab Grown Diamond

EX • D/FL

Diamond specifications and retailer prices

From €840 EUR
$939 USD
As of October 30, 2026
Save €4,871 EUR (85%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €5,712 EUR at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 2.57ct lab-grown radiant diamond

This 2.57ct lab-grown radiant sits in the two to three carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI. Listed at 5 retailers as of October 30, 2026, with prices from €840 to €5,712, a €4,871 spread on the same certified stone. Blue Nile lists it at €5,712. 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
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions9.37 × 6.81 × 4.71 mm
L/W Ratio1.38
Top View
9.37 mm6.81 mm2.57 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 65.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 69.2%

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: Oct 30
Current: €5,712 EUR|Low: €840 EUR|High: €9,304 EUR|Avg: €3,543 EUR|-11.6%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 28, 2026
Retailer 4€840 EUR
Retailer 3€915 EUR
Retailer 5€1,215 EUR
Retailer 2€2,018 EUR
Blue Nile€5,712 EUR
Retailer 6€9,304 EUR

11 data points across 6 retailers

5 retailers€840 EUR to €5,712 EUR

A
Cheapest Retailer
-
€840 EUR
$939 USD
A
Retailer 2
-
€915 EUR
$1,022 USD
View
A
Retailer 3
-
€1,215 EUR
$1,357 USD
View
A
Retailer 4
-
€2,018 EUR
$2,254 USD
View
Most Expensive
B
Blue Nile
30353931 · Oct 31
€5,712 EUR
$6,381 USD
View
4 more retailers have this diamond
Prices start from €840 EURSave up to €4,871 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
€840 EUR