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Round|Natural|GIA

0.66ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2231688609

Certificate GIA 2231688609

Diamond specifications and retailer prices

From $1,460 CAD
$1,045 USD
As of November 1, 2026
Save $1,617 CAD (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,077 CAD at MOH London · As of November 1, 2026
View at MOH London

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 2231688609. Listed at 10 retailers as of November 1, 2026, with prices from $1,460 to $3,077, a $1,617 spread on the same certified stone. MOH London lists it at $3,077. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2231688609
Dimensions5.58 × 5.61 × 3.44 mm
L/W Ratio1.01
Culet sizeNone
Top View
5.58 mm5.61 mm0.66 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2231688609
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.5%

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: Nov 1
Current: $3,077 CAD|Low: $1,815 CAD|High: $3,115 CAD|Avg: $2,321 CAD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6$1,898 CAD
Retailer 2$1,906 CAD
Retailer 3$2,170 CAD
Retailer 4$2,197 CAD
Retailer 5$2,733 CAD
MOH London$3,077 CAD

43 data points across 6 retailers

10 retailers$1,460 CAD to $3,077 CAD

B+
Cheapest Retailer
-
$1,460 CAD
$1,045 USD
B
Retailer 2
-
$1,831 CAD
$1,310 USD
View
B
Retailer 3
-
$1,831 CAD
$1,310 USD
View
B
Retailer 4
-
$1,898 CAD
$1,358 USD
View
B
Retailer 5
-
$1,900 CAD
$1,360 USD
View
B
Retailer 6
-
$1,906 CAD
£1,074 GBP
View
B
Retailer 7
-
$2,170 CAD
€1,479 EUR
View
Retailer 8
-
$2,197 CAD
A$2,418 AUD
View
Price last confirmed 28 days ago
B
Retailer 9
-
$2,733 CAD
View
Most Expensive
B
MOH London
F73821336 · Nov 1
$3,077 CAD
£1,734 GBP
View
9 more retailers have this diamond
Prices start from $1,460 CADSave up to $1,617 CAD

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+
0.66ct Round
$1,460 CAD