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Round|Natural|GIA

0.66ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 7561043179

Certificate GIA 7561043179

Diamond specifications and retailer prices

From $815 AUD
SGD 772 SGD
As of October 31, 2026
Save $713 AUD (47%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,528 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7561043179. Listed at 10 retailers as of October 31, 2026, with prices from $815 to $1,528, a $713 spread on the same certified stone. Frank Darling lists it at $1,528. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 7561043179
Dimensions5.58 × 5.59 × 3.49 mm
L/W Ratio1.00
Culet sizeNone
Top View
5.58 mm5.59 mm0.66 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7561043179
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 41.8°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: $1,528 AUD|Low: $593 AUD|High: $1,564 AUD|Avg: $1,145 AUD|-2.3%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 3$593 AUD
Retailer 5$815 AUD
Retailer 11$925 AUD
Retailer 4$942 AUD
Retailer 10$1,103 AUD
Retailer 8$1,203 AUD
Retailer 6$1,278 AUD
Retailer 2$1,288 AUD
Retailer 9$1,294 AUD
Retailer 7$1,390 AUD
Frank Darling$1,528 AUD

31 data points across 11 retailers

10 retailers$815 AUD to $1,528 AUD

A
Cheapest Retailer
-
$815 AUD
SGD 772 SGD
A
Retailer 2
-
$925 AUD
SGD 876 SGD
View
A
Retailer 3
-
$942 AUD
$660 USD
View
A
Retailer 4
-
$1,103 AUD
$773 USD
View
A
Retailer 5
-
$1,203 AUD
$843 USD
View
B+
Retailer 6
-
$1,278 AUD
£705 GBP
View
B+
Retailer 7
-
$1,288 AUD
€860 EUR
View
B+
Retailer 8
-
$1,294 AUD
$907 USD
View
Retailer 9
-
$1,390 AUD
$974 USD
View
Price last confirmed 7 days ago
Most Expensive
B+
Frank Darling
2678782HK · Nov 2
$1,528 AUD
$1,071 USD
View
9 more retailers have this diamond
Prices start from $815 AUDSave up to $713 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
$815 AUD