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Round|Natural|GIA

6.60ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2223007566

Certificate GIA 2223007566

Diamond specifications and retailer prices

From €170,132 EUR
$190,072 USD
As of October 30, 2026
Save €127,536 EUR (43%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €297,667 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 6.6ct natural round diamond

This 6.6ct natural round sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2223007566. Listed at 17 retailers as of October 29, 2026, with prices from €170,132 to €297,667, a €127,536 spread on the same certified stone. MOH London lists it at €297,667. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

6.60
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2223007566
Dimensions11.89 × 11.95 × 7.46 mm
L/W Ratio1.01
Star length55%
Lower girdle80%
Top View
11.89 mm11.95 mm6.60 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2223007566
Side View
Table 57.0%Crown 36°Girdle: MediumPavilion 40.6°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €297,667 EUR|Low: €157,985 EUR|High: €299,650 EUR|Avg: €203,489 EUR|+0.4%
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
October 30, 2026
Retailer 5€157,985 EUR
Retailer 6€170,132 EUR
Retailer 4€174,509 EUR
Retailer 3€181,663 EUR
Retailer 8€184,265 EUR
Retailer 14€189,582 EUR
Retailer 9€197,481 EUR
Retailer 12€197,481 EUR
Retailer 7€203,697 EUR
Retailer 10€205,380 EUR
Retailer 13€213,279 EUR
Retailer 11€228,167 EUR
Retailer 2€230,031 EUR
MOH London€297,667 EUR

31 data points across 14 retailers

17 retailers€170,132 EUR to €297,667 EUR

B+
Cheapest Retailer
-
€170,132 EUR
$190,072 USD
B+
Retailer 2
-
€172,672 EUR
$192,910 USD
View
Retailer 3
-
€174,509 EUR
A$299,942 AUD
View
Price last confirmed 33 days ago
B+
Retailer 4
-
€181,663 EUR
$202,955 USD
View
Retailer 5
-
€181,663 EUR
$202,955 USD
View
Price last confirmed 17 days ago
Retailer 6
-
€181,663 EUR
$202,955 USD
View
Price last confirmed 33 days ago
B+
Retailer 7
-
€184,265 EUR
£162,096 GBP
View
B+
Retailer 8
-
€189,582 EUR
$211,802 USD
View
B+
Retailer 9
-
€197,481 EUR
$220,627 USD
View
B+
Retailer 10
-
€197,481 EUR
$220,627 USD
View
B+
Retailer 11
-
€202,890 EUR
$226,670 USD
View
B+
Retailer 12
-
€203,697 EUR
£179,190 GBP
View
B
Retailer 13
-
€205,380 EUR
$229,452 USD
View
B
Retailer 14
-
€213,279 EUR
$238,277 USD
View
B
Retailer 15
-
€228,167 EUR
ZAR 4,118,092 ZAR
View
B
Retailer 16
-
€230,031 EUR
View
Most Expensive
B
MOH London
BE7C8ED7F · Oct 29
€297,667 EUR
£261,855 GBP
View
16 more retailers have this diamond
Prices start from €170,132 EURSave up to €127,536 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.

B+
6.60ct Round
€170,132 EUR