Oval|Natural|GIA

6.25ct D FL Oval Natural Diamond

EX • D/FL • GIA 2566178378

Certificate GIA 2566178378

Diamond specifications and retailer prices

From €258,551 EUR
As of October 28, 2026
Save €66,366 EUR (20%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €324,918 EUR at William & Sons Jewelers · As of October 31, 2026
View at William & Sons Jewelers

About this 6.25ct natural oval diamond

This 6.25ct natural oval sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566178378. Listed at 3 retailers as of October 28, 2026, with prices from €258,551 to €324,918, a €66,366 spread on the same certified stone. William & Sons Jewelers lists it at €324,918. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

6.25
Carat
D
Color
FL
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566178378
Dimensions15.21 × 10.12 × 6.29 mm
L/W Ratio1.50
Top View
15.21 mm10.12 mm6.25 ctD / FL
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566178378
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: €283,464 EUR|Low: €258,081 EUR|High: €332,374 EUR|Avg: €302,463 EUR|-7.0%
Retailer 1
Retailer 2
Retailer 3
William & Sons Jewelers
October 31, 2026
Retailer 2€258,551 EUR
Retailer 1€283,464 EUR
William & Sons Jewelers€324,918 EUR
Retailer 3€331,116 EUR

30 data points across 4 retailers

3 retailers€258,551 EUR to €324,918 EUR

A
Cheapest Retailer
-
€258,551 EUR
A
Retailer 2
-
€283,464 EUR
₹30,160,729 INR
View
Most Expensive
B+
William & Sons Jewelers
cert_2566178378 · Oct 31
€324,918 EUR
$363,000 USD
View
Final sale: no returns
2 more retailers have this diamond
Prices start from €258,551 EURSave up to €66,366 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
6.25ct Oval
€258,551 EUR