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Round|Natural|GIA

0.66ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 6542345500

Certificate GIA 6542345500

Diamond specifications and retailer prices

From $612 SGD
As of October 31, 2026
Save $602 SGD (50%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,214 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 6542345500. Listed at 8 retailers as of October 31, 2026, with prices from $612 to $1,214, a $602 spread on the same certified stone. Frank Darling lists it at $1,214. 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 angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6542345500
Dimensions5.56 × 5.58 × 3.47 mm
L/W Ratio1.00
Top View
5.56 mm5.58 mm0.66 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542345500
Side View
Table 58.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 62.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $1,214 SGD|Low: $612 SGD|High: $1,282 SGD|Avg: $968 SGD|-5.3%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 5$612 SGD
Retailer 6$668 SGD
Retailer 4$868 SGD
Retailer 2$948 SGD
Retailer 3$966 SGD
Retailer 7$1,008 SGD
Retailer 8$1,157 SGD
Frank Darling$1,214 SGD

30 data points across 8 retailers

8 retailers$612 SGD to $1,214 SGD

A
Cheapest Retailer
-
$612 SGD
A
Retailer 2
-
$668 SGD
View
A
Retailer 3
-
$866 SGD
$677 USD
View
A
Retailer 4
-
$868 SGD
$679 USD
View
A
Retailer 5
-
$948 SGD
€706 EUR
View
A
Retailer 6
-
$966 SGD
£595 GBP
View
Retailer 7
-
$1,008 SGD
$788 USD
View
Price last confirmed 7 days ago
Most Expensive
A
Frank Darling
2571627HK · Nov 2
$1,214 SGD
$949 USD
View
7 more retailers have this diamond
Prices start from $612 SGDSave up to $602 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
$612 SGD