CaratHunter
Plans
Round|Natural|GIA

6.60ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2223007566

Certificate GIA 2223007566

Diamond specifications and retailer prices

From €170,774 EUR
$190,072 USD
As of October 29, 2026
Save €128,017 EUR (43%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €298,791 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 €170,774 to €298,791, a €128,017 spread on the same certified stone. MOH London lists it at €298,791. 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
Colour
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 29
Current: €298,791 EUR|Low: €158,582 EUR|High: €300,781 EUR|Avg: €204,194 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€158,582 EUR
Retailer 6€170,774 EUR
Retailer 4€175,168 EUR
Retailer 3€182,349 EUR
Retailer 7€184,961 EUR
Retailer 14€190,298 EUR
Retailer 8€198,227 EUR
Retailer 12€198,227 EUR
Retailer 2€204,466 EUR
Retailer 9€206,156 EUR
Retailer 13€214,085 EUR
Retailer 11€229,029 EUR
Retailer 10€230,533 EUR
MOH London€298,791 EUR

32 data points across 14 retailers

17 retailers€170,774 EUR to €298,791 EUR

B+
Cheapest Retailer
-
€170,774 EUR
$190,072 USD
B+
Retailer 2
-
€173,324 EUR
$192,910 USD
View
Retailer 3
-
€175,168 EUR
A$299,942 AUD
View
Price last confirmed 31 days ago
B+
Retailer 4
-
€182,349 EUR
$202,955 USD
View
Retailer 5
-
€182,349 EUR
$202,955 USD
View
Price last confirmed 16 days ago
Retailer 6
-
€182,349 EUR
$202,955 USD
View
Price last confirmed 32 days ago
B+
Retailer 7
-
€184,961 EUR
£162,096 GBP
View
B+
Retailer 8
-
€190,298 EUR
$211,802 USD
View
B+
Retailer 9
-
€198,227 EUR
$220,627 USD
View
B+
Retailer 10
-
€198,227 EUR
$220,627 USD
View
B+
Retailer 11
-
€203,657 EUR
$226,670 USD
View
B+
Retailer 12
-
€204,466 EUR
£179,190 GBP
View
B
Retailer 13
-
€206,156 EUR
$229,452 USD
View
B
Retailer 14
-
€214,085 EUR
$238,277 USD
View
B
Retailer 15
-
€229,029 EUR
ZAR 4,118,092 ZAR
View
B
Retailer 16
-
€230,533 EUR
View
Most Expensive
B
MOH London
BE7C8ED7F · Oct 29
€298,791 EUR
£261,855 GBP
View
16 more retailers have this diamond
Prices start from €170,774 EURSave up to €128,017 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
€170,774 EUR