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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 $680 SGD
As of October 31, 2026
Save $623 SGD (48%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,303 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 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 $680 to $1,303, a $623 spread on the same certified stone. Frank Darling lists it at $1,303. 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
Colour
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,303 SGD|Low: $680 SGD|High: $1,381 SGD|Avg: $1,086 SGD|-5.6%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 5$680 SGD
Retailer 6$762 SGD
Retailer 4$989 SGD
Retailer 2$1,066 SGD
Retailer 3$1,072 SGD
Retailer 7$1,142 SGD
Frank Darling$1,303 SGD
Retailer 8$1,311 SGD

33 data points across 8 retailers

8 retailers$680 SGD to $1,303 SGD

A
Cheapest Retailer
-
$680 SGD
A
Retailer 2
-
$762 SGD
View
A
Retailer 3
-
$987 SGD
$772 USD
View
A
Retailer 4
-
$989 SGD
$773 USD
View
A
Retailer 5
-
$1,066 SGD
€794 EUR
View
A
Retailer 6
-
$1,072 SGD
£660 GBP
View
Retailer 7
-
$1,142 SGD
$893 USD
View
Price last confirmed 7 days ago
Most Expensive
B+
Frank Darling
2619666HK · Nov 2
$1,303 SGD
$1,019 USD
View
7 more retailers have this diamond
Prices start from $680 SGDSave up to $623 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
$680 SGD