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Round|Natural|GIA

0.66ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2564425219

Certificate GIA 2564425219

Diamond specifications and retailer prices

From €514 EUR
HK$4,500 HKD
As of November 1, 2026
Save €1,619 EUR (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €2,133 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.66ct natural round diamond

This 0.66ct natural round sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2564425219. Listed at 18 retailers as of October 30, 2026, with prices from €514 to €2,133, a €1,619 spread on the same certified stone. NZ Jewellers lists it at €2,133. 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

0.66
Carat
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2564425219
Dimensions5.58 × 5.62 × 3.44 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Crystal, Knot
Top View
5.58 mm5.62 mm0.66 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2564425219
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.5%

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: Nov 1
Current: €2,133 EUR|Low: €514 EUR|High: €2,136 EUR|Avg: €807 EUR|-0.2%
NZ Jewellers
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
Retailer 18
November 2, 2026
Retailer 10€514 EUR
Retailer 2€515 EUR
Retailer 18€602 EUR
Retailer 3€622 EUR
Retailer 8€645 EUR
Retailer 6€680 EUR
Retailer 5€686 EUR
Retailer 11€701 EUR
Retailer 7€705 EUR
Retailer 9€778 EUR
Retailer 15€793 EUR
Retailer 4€798 EUR
Retailer 17€806 EUR
Retailer 13€806 EUR
Retailer 12€873 EUR
Retailer 14€892 EUR
Retailer 16€1,236 EUR
NZ Jewellers€2,133 EUR

24 data points across 18 retailers

18 retailers€514 EUR to €2,133 EUR

A
Cheapest Retailer
-
€514 EUR
HK$4,500 HKD
A
Retailer 2
-
€515 EUR
₹54,965 INR
View
A
Retailer 3
-
€602 EUR
$675 USD
View
A
Retailer 4
-
€622 EUR
$698 USD
View
Final sale: no returns
A
Retailer 5
-
€645 EUR
A$1,113 AUD
View
A
Retailer 6
-
€680 EUR
$763 USD
View
A
Retailer 7
-
€686 EUR
$769 USD
View
A
Retailer 8
-
€701 EUR
$786 USD
View
A
Retailer 9
-
€705 EUR
$791 USD
View
B+
Retailer 10
-
€778 EUR
$873 USD
View
A
Retailer 11
-
€793 EUR
$889 USD
View
A
Retailer 12
-
€798 EUR
£705 GBP
View
B+
Retailer 13
-
€806 EUR
$904 USD
View
B+
Retailer 14
-
€806 EUR
£712 GBP
View
B+
Retailer 15
-
€873 EUR
£771 GBP
View
B+
Retailer 16
-
€892 EUR
View
B
Retailer 17
-
€1,236 EUR
£1,092 GBP
View
Most Expensive
B
NZ Jewellers
0fcc5155-f3b0-456c-ae41-b3fa574cead4 · Oct 30
€2,133 EUR
$2,392 USD
View
17 more retailers have this diamond
Prices start from €514 EURSave up to €1,619 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
0.66ct Round
€514 EUR