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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 HK$5,816 HKD
$741 USD
As of October 31, 2026
Save HK$3,779 HKD (39%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$9,596 HKD 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 HK$5,816 to HK$9,596, a HK$3,779 spread on the same certified stone. Frank Darling lists it at HK$9,596. 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: HK$9,596 HKD|Low: HK$5,816 HKD|High: HK$9,596 HKD|Avg: HK$7,482 HKD
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 10HK$5,816 HKD
Retailer 5HK$6,316 HKD
Retailer 9HK$6,340 HKD
Retailer 8HK$6,473 HKD
Retailer 3HK$7,031 HKD
Retailer 4HK$7,297 HKD
Retailer 7HK$7,320 HKD
Retailer 2HK$8,510 HKD
Retailer 6HK$9,479 HKD
Frank DarlingHK$9,596 HKD

17 data points across 10 retailers

11 retailersHK$5,816 HKD to HK$9,596 HKD

A
Cheapest Retailer
-
HK$5,816 HKD
$741 USD
A
Retailer 2
-
HK$6,120 HKD
SGD 1,054 SGD
View
A
Retailer 3
-
HK$6,316 HKD
$805 USD
View
A
Retailer 4
-
HK$6,340 HKD
SGD 1,092 SGD
View
A
Retailer 5
-
HK$6,473 HKD
$825 USD
View
B+
Retailer 6
-
HK$7,031 HKD
£706 GBP
View
B+
Retailer 7
-
HK$7,297 HKD
$930 USD
View
B+
Retailer 8
-
HK$7,320 HKD
$933 USD
View
B+
Retailer 9
-
HK$8,510 HKD
€1,033 EUR
View
B+
Retailer 10
-
HK$9,479 HKD
$1,208 USD
View
Most Expensive
B
Frank Darling
2702948HK · Nov 2
HK$9,596 HKD
$1,223 USD
View
10 more retailers have this diamond
Prices start from HK$5,816 HKDSave up to HK$3,779 HKD

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
HK$5,816 HKD