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Round|Natural|GIA

5.66ct D FL Round Natural Diamond

EX • D/FL • GIA 2537528808

Certificate GIA 2537528808

Diamond specifications and retailer prices

From €303,145 EUR
$338,675 USD
As of October 28, 2026
Save €246,456 EUR (45%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €549,601 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 5.66ct natural round diamond

This 5.66ct natural round sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 2537528808. Listed at 4 retailers as of October 28, 2026, with prices from €303,145 to €549,601, a €246,456 spread on the same certified stone. MOH London lists it at €549,601. 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

5.66
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2537528808
Dimensions11.32 × 11.38 × 7.10 mm
L/W Ratio1.01
Top View
11.32 mm11.38 mm5.66 ctD / FL
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2537528808
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.6%

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 28
Current: €549,601 EUR|Low: €303,145 EUR|High: €549,601 EUR|Avg: €396,826 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 4€303,145 EUR
Retailer 5€313,718 EUR
Retailer 2€332,366 EUR
Retailer 3€425,823 EUR
MOH London€549,601 EUR

12 data points across 5 retailers

4 retailers€303,145 EUR to €549,601 EUR

A
Cheapest Retailer
-
€303,145 EUR
$338,675 USD
A
Retailer 2
-
€332,366 EUR
£292,379 GBP
View
B+
Retailer 3
-
€425,823 EUR
View
Most Expensive
B
MOH London
058EFC4CE · Oct 29
€549,601 EUR
£483,478 GBP
View
3 more retailers have this diamond
Prices start from €303,145 EURSave up to €246,456 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
5.66ct Round
€303,145 EUR