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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 $948 SGD
$741 USD
As of October 31, 2026
Save $616 SGD (39%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,564 SGD at Frank Darling · As of November 2, 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 31, 2026, with prices from $948 to $1,564, a $616 spread on the same certified stone. Frank Darling lists it at $1,564. 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
Colour
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: $1,564 SGD|Low: $948 SGD|High: $1,564 SGD|Avg: $1,220 SGD
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 10$948 SGD
Retailer 5$1,030 SGD
Retailer 9$1,033 SGD
Retailer 8$1,055 SGD
Retailer 3$1,146 SGD
Retailer 4$1,189 SGD
Retailer 7$1,193 SGD
Retailer 2$1,387 SGD
Retailer 6$1,545 SGD
Frank Darling$1,564 SGD

17 data points across 10 retailers

11 retailers$948 SGD to $1,564 SGD

A
Cheapest Retailer
-
$948 SGD
$741 USD
A
Retailer 2
-
$997 SGD
View
A
Retailer 3
-
$1,030 SGD
$805 USD
View
A
Retailer 4
-
$1,033 SGD
View
A
Retailer 5
-
$1,055 SGD
$825 USD
View
B+
Retailer 6
-
$1,146 SGD
£706 GBP
View
B+
Retailer 7
-
$1,189 SGD
$930 USD
View
B+
Retailer 8
-
$1,193 SGD
$933 USD
View
B+
Retailer 9
-
$1,387 SGD
€1,033 EUR
View
B+
Retailer 10
-
$1,545 SGD
$1,208 USD
View
Most Expensive
B
Frank Darling
2702948HK · Nov 2
$1,564 SGD
$1,223 USD
View
10 more retailers have this diamond
Prices start from $948 SGDSave up to $616 SGD

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
$948 SGD