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Round|Natural|GIA

0.66ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 3565520505

Certificate GIA 3565520505

Diamond specifications and retailer prices

From $523 USD
₹49,839 INR
As of November 2, 2026
Save $803 USD (61%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,326 USD at MOH London · As of November 2, 2026
View at MOH London

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 3565520505. Listed at 7 retailers as of November 2, 2026, with prices from $523 to $1,326, a $803 spread on the same certified stone. MOH London lists it at $1,326. 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
OriginNatural
Grading LabGIA
CertificateGIA 3565520505
Dimensions5.53 × 5.57 × 3.47 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal
Top View
5.53 mm5.57 mm0.66 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3565520505
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: 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: Nov 2
Current: $1,326 USD|Low: $523 USD|High: $1,340 USD|Avg: $869 USD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 3, 2026
Retailer 3$523 USD
Retailer 5$725 USD
Retailer 6$805 USD
Retailer 2$863 USD
Retailer 4$939 USD
MOH London$1,326 USD

27 data points across 6 retailers

7 retailers$523 USD to $1,326 USD

A
Cheapest Retailer
-
$523 USD
₹49,839 INR
A
Retailer 2
-
$666 USD
A$1,025 AUD
View
A
Retailer 3
-
$725 USD
View
A
Retailer 4
-
$805 USD
View
A
Retailer 5
-
$863 USD
£680 GBP
View
A
Retailer 6
-
$939 USD
€894 EUR
View
Most Expensive
B
MOH London
C6A258E8A · Nov 2
$1,326 USD
£1,044 GBP
View
6 more retailers have this diamond
Prices start from $523 USDSave up to $803 USD

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
$523 USD