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Round|Natural|GIA

0.66ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2241022762

Certificate GIA 2241022762

Diamond specifications and retailer prices

From €559 EUR
SGD 847 SGD
As of October 31, 2026
Save €461 EUR (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €1,019 EUR at Frank Darling · As of November 2, 2026
View at Frank Darling

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2241022762. Listed at 12 retailers as of October 31, 2026, with prices from €559 to €1,019, a €461 spread on the same certified stone. Frank Darling lists it at €1,019. 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
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2241022762
Dimensions5.54 × 3.46 × 3.46 mm
L/W Ratio1.60
Culet sizeNone
Top View
5.54 mm3.46 mm0.66 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2241022762
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.4%

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: €1,019 EUR|Low: €559 EUR|High: €1,058 EUR|Avg: €813 EUR|-3.6%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 5€559 EUR
Retailer 11€646 EUR
Retailer 3€671 EUR
Retailer 8€680 EUR
Retailer 4€719 EUR
Retailer 9€840 EUR
Retailer 6€866 EUR
Retailer 2€868 EUR
Retailer 10€904 EUR
Retailer 7€966 EUR
Frank Darling€1,019 EUR

45 data points across 11 retailers

12 retailers€559 EUR to €1,019 EUR

A
Cheapest Retailer
-
€559 EUR
SGD 847 SGD
A
Retailer 2
-
€646 EUR
SGD 979 SGD
View
Retailer 3
-
€671 EUR
$753 USD
View
Price last confirmed 13 days ago
A
Retailer 4
-
€680 EUR
$763 USD
View
A
Retailer 5
-
€719 EUR
£635 GBP
View
B+
Retailer 6
-
€793 EUR
$889 USD
View
B+
Retailer 7
-
€840 EUR
$942 USD
View
B+
Retailer 8
-
€866 EUR
£765 GBP
View
B+
Retailer 9
-
€868 EUR
View
B+
Retailer 10
-
€904 EUR
$1,014 USD
View
Retailer 11
-
€966 EUR
$1,083 USD
View
Price last confirmed 7 days ago
Most Expensive
B+
Frank Darling
2668909HK · Nov 2
€1,019 EUR
$1,143 USD
View
11 more retailers have this diamond
Prices start from €559 EURSave up to €461 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
€559 EUR