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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 $731 SGD
As of October 31, 2026
Save $639 SGD (47%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,369 SGD 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 $731 to $1,369, a $639 spread on the same certified stone. Frank Darling lists it at $1,369. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,369 SGD|Low: $531 SGD|High: $1,402 SGD|Avg: $1,026 SGD|-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 3, 2026
Retailer 3$531 SGD
Retailer 5$731 SGD
Retailer 11$829 SGD
Retailer 4$844 SGD
Retailer 10$989 SGD
Retailer 8$1,078 SGD
Retailer 6$1,145 SGD
Retailer 2$1,158 SGD
Retailer 9$1,160 SGD
Retailer 7$1,246 SGD
Frank Darling$1,369 SGD

32 data points across 11 retailers

10 retailers$731 SGD to $1,369 SGD

A
Cheapest Retailer
-
$731 SGD
A
Retailer 2
-
$829 SGD
View
A
Retailer 3
-
$844 SGD
$660 USD
View
A
Retailer 4
-
$989 SGD
$773 USD
View
A
Retailer 5
-
$1,078 SGD
$843 USD
View
B+
Retailer 6
-
$1,145 SGD
£705 GBP
View
B+
Retailer 7
-
$1,158 SGD
€862 EUR
View
B+
Retailer 8
-
$1,160 SGD
$907 USD
View
Retailer 9
-
$1,246 SGD
$974 USD
View
Price last confirmed 7 days ago
Most Expensive
B+
Frank Darling
2678782HK · Nov 2
$1,369 SGD
$1,071 USD
View
9 more retailers have this diamond
Prices start from $731 SGDSave up to $639 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 Round
$731 SGD