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0.66ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 3565704527

Certificate GIA 3565704527

Diamond specifications and retailer prices

From $886 CAD
SGD 857 SGD
As of October 31, 2026
Save $726 CAD (45%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,612 CAD at Frank Darling · As of October 30, 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 3565704527. Listed at 10 retailers as of October 30, 2026, with prices from $886 to $1,612, a $726 spread on the same certified stone. Frank Darling lists it at $1,612. 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 angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 3565704527
Dimensions5.53 × 3.47 × 3.47 mm
L/W Ratio1.59
Culet sizeNone
Top View
5.53 mm3.47 mm0.66 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3565704527
Side View
Table 58.0%Crown 36.5°Girdle: MED-STKPavilion 41°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: Oct 31
Current: $1,612 CAD|Low: $1,028 CAD|High: $1,612 CAD|Avg: $1,314 CAD
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 9$1,028 CAD
Retailer 7$1,080 CAD
Retailer 2$1,144 CAD
Retailer 8$1,335 CAD
Retailer 6$1,375 CAD
Retailer 3$1,388 CAD
Retailer 5$1,437 CAD
Retailer 4$1,534 CAD
Frank Darling$1,612 CAD

7 data points across 9 retailers

10 retailers$886 CAD to $1,612 CAD

A
Cheapest Retailer
-
$886 CAD
SGD 857 SGD
A
Retailer 2
-
$1,028 CAD
SGD 994 SGD
View
A
Retailer 3
-
$1,080 CAD
$773 USD
View
A
Retailer 4
-
$1,144 CAD
£644 GBP
View
B+
Retailer 5
-
$1,335 CAD
$956 USD
View
B+
Retailer 6
-
$1,375 CAD
£775 GBP
View
B+
Retailer 7
-
$1,388 CAD
€946 EUR
View
B+
Retailer 8
-
$1,437 CAD
$1,028 USD
View
B+
Retailer 9
-
$1,534 CAD
$1,098 USD
View
Most Expensive
B
Frank Darling
2708874HK · Oct 30
$1,612 CAD
$1,153 USD
View
9 more retailers have this diamond
Prices start from $886 CADSave up to $726 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
$886 CAD