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Radiant|Lab Grown|IGI

2.57ct D FL Radiant Lab Grown Diamond

D/FL

Diamond specifications and retailer prices

From €966 EUR
$1,079 USD
As of October 30, 2026
Save €4,506 EUR (82%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €5,472 EUR at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

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) and certified by IGI. Listed at 5 retailers as of October 30, 2026, with prices from €966 to €5,472, a €4,506 spread on the same certified stone. Helzberg Diamonds lists it at €5,472. 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
D
Color
FL
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions9.13 × 6.75 × 4.81 mm
L/W Ratio1.35
Top View
9.13 mm6.75 mm2.57 ctD / FL
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 62.0%CrownGirdle: MediumPavilionCuletDepth 71.3%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: €5,472 EUR|Low: €966 EUR|High: €9,304 EUR|Avg: €3,004 EUR|-41.2%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 22, 2026
Retailer 3€966 EUR
Retailer 2€1,051 EUR
Retailer 4€1,120 EUR
Retailer 5€2,100 EUR
Helzberg Diamonds€5,472 EUR

11 data points across 5 retailers

5 retailers€966 EUR to €5,472 EUR

A
Cheapest Retailer
-
€966 EUR
$1,079 USD
B+
Retailer 2
-
€1,051 EUR
$1,174 USD
View
A
Retailer 3
-
€1,120 EUR
$1,251 USD
View
B+
Retailer 4
-
€2,100 EUR
$2,346 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZNPPMKJMLO · Oct 31
€5,472 EUR
$6,113 USD
View
4 more retailers have this diamond
Prices start from €966 EURSave up to €4,506 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
€966 EUR