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0.66ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1555028435

Certificate GIA 1555028435

Diamond specifications and retailer prices

From $744 CAD
SGD 719 SGD
As of October 31, 2026
Save $681 CAD (48%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,424 CAD 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1555028435. Listed at 8 retailers as of October 31, 2026, with prices from $744 to $1,424, a $681 spread on the same certified stone. Frank Darling lists it at $1,424. 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
G
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1555028435
Dimensions5.55 × 3.48 × 3.48 mm
L/W Ratio1.59
Culet sizeNone
Top View
5.55 mm3.48 mm0.66 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555028435
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.5%

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: $1,424 CAD|Low: $744 CAD|High: $1,509 CAD|Avg: $1,187 CAD|-5.6%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 5$744 CAD
Retailer 6$832 CAD
Retailer 4$1,081 CAD
Retailer 2$1,165 CAD
Retailer 3$1,171 CAD
Retailer 7$1,248 CAD
Frank Darling$1,424 CAD
Retailer 8$1,432 CAD

33 data points across 8 retailers

8 retailers$744 CAD to $1,424 CAD

A
Cheapest Retailer
-
$744 CAD
SGD 719 SGD
A
Retailer 2
-
$832 CAD
SGD 805 SGD
View
A
Retailer 3
-
$1,079 CAD
$772 USD
View
A
Retailer 4
-
$1,081 CAD
$773 USD
View
A
Retailer 5
-
$1,165 CAD
€794 EUR
View
A
Retailer 6
-
$1,171 CAD
£660 GBP
View
Retailer 7
-
$1,248 CAD
$893 USD
View
Price last confirmed 7 days ago
Most Expensive
B+
Frank Darling
2619666HK · Nov 2
$1,424 CAD
$1,019 USD
View
7 more retailers have this diamond
Prices start from $744 CADSave up to $681 CAD

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
$744 CAD