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Round|Natural|GIA

0.66ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6562043215

Certificate GIA 6562043215

Diamond specifications and retailer prices

From $660 AUD
SGD 625 SGD
As of October 31, 2026
Save $664 AUD (50%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,324 AUD at Frank Darling · As of November 2, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6562043215. Listed at 9 retailers as of October 31, 2026, with prices from $660 to $1,324, a $664 spread on the same certified stone. Frank Darling lists it at $1,324. 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
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6562043215
Dimensions5.59 × 5.61 × 3.44 mm
L/W Ratio1.00
Culet sizeNone
Top View
5.59 mm5.61 mm0.66 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562043215
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.4%

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: $1,324 AUD|Low: $529 AUD|High: $1,366 AUD|Avg: $912 AUD|-3.1%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 10$529 AUD
Retailer 4$660 AUD
Retailer 9$711 AUD
Retailer 3$735 AUD
Retailer 8$879 AUD
Retailer 7$926 AUD
Retailer 2$1,014 AUD
Retailer 5$1,042 AUD
Retailer 6$1,075 AUD
Frank Darling$1,324 AUD

31 data points across 10 retailers

9 retailers$660 AUD to $1,324 AUD

A
Cheapest Retailer
-
$660 AUD
SGD 625 SGD
A
Retailer 2
-
$711 AUD
SGD 673 SGD
View
A
Retailer 3
-
$735 AUD
$515 USD
View
A
Retailer 4
-
$879 AUD
$616 USD
View
A
Retailer 5
-
$926 AUD
$649 USD
View
A
Retailer 6
-
$1,014 AUD
€677 EUR
View
A
Retailer 7
-
$1,042 AUD
£575 GBP
View
Retailer 8
-
$1,075 AUD
$754 USD
View
Price last confirmed 7 days ago
Most Expensive
B+
Frank Darling
2678820HK · Nov 2
$1,324 AUD
$928 USD
View
8 more retailers have this diamond
Prices start from $660 AUDSave up to $664 AUD

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
$660 AUD