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Round|Natural|GIA

6.57ct D FL Round Natural Diamond

EX • D/FL • GIA 5231913143

Certificate GIA 5231913143

Diamond specifications and retailer prices

From €354,797 EUR
£312,111 GBP
As of October 31, 2026
Save €231,884 EUR (40%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €586,681 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 6.57ct natural round diamond

This 6.57ct 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 5231913143. Listed at 16 retailers as of October 29, 2026, with prices from €354,797 to €586,681, a €231,884 spread on the same certified stone. MOH London lists it at €586,681. 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

6.57
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5231913143
Dimensions11.90 × 11.93 × 7.42 mm
L/W Ratio1.00
Top View
11.90 mm11.93 mm6.57 ctD / FL
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231913143
Side View
Table 58.0%Crown 35.5°Girdle: STK-MEDPavilion 41°Culet: NoneDepth 62.3%

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 31
Current: €586,681 EUR|Low: €343,667 EUR|High: €590,587 EUR|Avg: €421,213 EUR|-0.5%
MOH London
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
Retailer 17
October 31, 2026
Retailer 16€347,779 EUR
Retailer 2€354,797 EUR
Retailer 3€364,890 EUR
Retailer 15€371,197 EUR
Retailer 14€386,876 EUR
Retailer 9€389,221 EUR
Retailer 6€389,323 EUR
Retailer 10€395,524 EUR
Retailer 7€412,440 EUR
Retailer 17€429,625 EUR
Retailer 4€446,811 EUR
Retailer 12€449,702 EUR
Retailer 13€451,388 EUR
Retailer 11€453,375 EUR
Retailer 8€459,880 EUR
Retailer 5€463,996 EUR
MOH London€586,681 EUR

35 data points across 17 retailers

16 retailers€354,797 EUR to €586,681 EUR

Retailer 1
-
€347,779 EUR
A$597,755 AUD
Price last confirmed 27 days ago
A
Retailer 2
-
€354,797 EUR
£312,111 GBP
View
A
Retailer 3
-
€371,197 EUR
$414,703 USD
View
Final sale: no returns
A
Retailer 4
-
€386,876 EUR
$432,220 USD
View
A
Retailer 5
-
€389,221 EUR
$434,840 USD
View
A
Retailer 6
-
€389,323 EUR
$434,954 USD
View
A
Retailer 7
-
€395,524 EUR
£347,938 GBP
View
B+
Retailer 8
-
€412,440 EUR
$460,781 USD
View
B+
Retailer 9
-
€429,625 EUR
$479,980 USD
View
B+
Retailer 10
-
€446,811 EUR
$499,180 USD
View
B+
Retailer 11
-
€449,702 EUR
ZAR 8,116,468 ZAR
View
B+
Retailer 12
-
€451,388 EUR
$504,293 USD
View
B+
Retailer 13
-
€453,375 EUR
View
B+
Retailer 14
-
€459,880 EUR
$513,781 USD
View
B+
Retailer 15
-
€463,996 EUR
$518,379 USD
View
Most Expensive
B+
MOH London
58B1E8B80 · Oct 29
€586,681 EUR
£516,097 GBP
View
15 more retailers have this diamond
Prices start from €354,797 EURSave up to €231,884 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
6.57ct Round
€354,797 EUR