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Round|Natural|GIA

0.66ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6535595588

Certificate GIA 6535595588

Diamond specifications and retailer prices

From $805 CAD
HK$4,500 HKD
As of November 1, 2026
Save $1,163 CAD (59%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,968 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 6535595588. Listed at 11 retailers as of November 1, 2026, with prices from $805 to $1,968, a $1,163 spread on the same certified stone. MOH London lists it at $1,968. 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
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6535595588
Dimensions5.53 × 5.57 × 3.48 mm
L/W Ratio1.01
Top View
5.53 mm5.57 mm0.66 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535595588
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.6%

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: $1,968 CAD|Low: $787 CAD|High: $2,064 CAD|Avg: $1,397 CAD|-4.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 5$805 CAD
Retailer 10$1,075 CAD
Retailer 8$1,091 CAD
Retailer 7$1,116 CAD
Retailer 9$1,231 CAD
Retailer 3$1,260 CAD
Retailer 2$1,285 CAD
Retailer 4$1,516 CAD
Retailer 6$1,605 CAD
Retailer 11$1,616 CAD
MOH London$1,968 CAD

43 data points across 11 retailers

11 retailers$805 CAD to $1,968 CAD

A
Cheapest Retailer
-
$805 CAD
HK$4,500 HKD
A
Retailer 2
-
$1,075 CAD
$769 USD
View
A
Retailer 3
-
$1,091 CAD
$781 USD
View
A
Retailer 4
-
$1,116 CAD
SGD 1,079 SGD
View
B+
Retailer 5
-
$1,231 CAD
$881 USD
View
B+
Retailer 6
-
$1,260 CAD
$902 USD
View
B+
Retailer 7
-
$1,285 CAD
£724 GBP
View
B+
Retailer 8
-
$1,516 CAD
€1,033 EUR
View
B+
Retailer 9
-
$1,605 CAD
ZAR 18,558 ZAR
View
Retailer 10
-
$1,616 CAD
A$1,780 AUD
View
Price last confirmed 29 days ago
Most Expensive
B
MOH London
713A3B4D4 · Nov 1
$1,968 CAD
£1,109 GBP
View
10 more retailers have this diamond
Prices start from $805 CADSave up to $1,163 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.

A
0.66ct Round
$805 CAD