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Oval|Natural|GIA

0.66ct F SI2 Oval Natural Diamond

EX • F/SI2 • GIA 7566579428

Certificate GIA 7566579428

Diamond specifications and retailer prices

From $1,036 CAD
$741 USD
As of October 31, 2026
Save $673 CAD (39%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,709 CAD at Frank Darling · As of October 30, 2026
View at Frank Darling

About this 0.66ct natural oval diamond

This 0.66ct natural oval sits in the half to three-quarter carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7566579428. Listed at 11 retailers as of October 30, 2026, with prices from $1,036 to $1,709, a $673 spread on the same certified stone. Frank Darling lists it at $1,709. 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
F
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle38.33°
Pavilion angle40.07°
OriginNatural
Grading LabGIA
CertificateGIA 7566579428
Dimensions6.80 × 4.89 × 3.05 mm
L/W Ratio1.39
Culet sizeNone
Top View
6.80 mm4.89 mm0.66 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7566579428
Side View
Table 58.0%Crown 38.33°Girdle: THN-THKPavilion 40.07°Culet: NoneDepth 62.3%

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: $1,709 CAD|Low: $1,036 CAD|High: $1,709 CAD|Avg: $1,334 CAD
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 10$1,036 CAD
Retailer 5$1,125 CAD
Retailer 9$1,129 CAD
Retailer 8$1,153 CAD
Retailer 3$1,263 CAD
Retailer 2$1,300 CAD
Retailer 7$1,304 CAD
Retailer 4$1,513 CAD
Retailer 6$1,688 CAD
Frank Darling$1,709 CAD

15 data points across 10 retailers

11 retailers$1,036 CAD to $1,709 CAD

A
Cheapest Retailer
-
$1,036 CAD
$741 USD
A
Retailer 2
-
$1,090 CAD
SGD 1,054 SGD
View
A
Retailer 3
-
$1,125 CAD
$805 USD
View
A
Retailer 4
-
$1,129 CAD
SGD 1,092 SGD
View
A
Retailer 5
-
$1,153 CAD
$825 USD
View
B+
Retailer 6
-
$1,263 CAD
£711 GBP
View
B+
Retailer 7
-
$1,300 CAD
$930 USD
View
B+
Retailer 8
-
$1,304 CAD
$933 USD
View
B+
Retailer 9
-
$1,513 CAD
€1,031 EUR
View
B+
Retailer 10
-
$1,688 CAD
$1,208 USD
View
Most Expensive
B
Frank Darling
2702948HK · Oct 30
$1,709 CAD
$1,223 USD
View
10 more retailers have this diamond
Prices start from $1,036 CADSave up to $673 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 Oval
$1,036 CAD