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Round|Natural|GIA

0.66ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2564425219

Certificate GIA 2564425219

Diamond specifications and retailer prices

From $737 SGD
HK$4,500 HKD
As of November 1, 2026
Save $2,322 SGD (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,059 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2564425219. Listed at 18 retailers as of October 30, 2026, with prices from $737 to $3,059, a $2,322 spread on the same certified stone. NZ Jewellers lists it at $3,059. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2564425219
Dimensions5.58 × 5.62 × 3.44 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Crystal, Knot
Top View
5.58 mm5.62 mm0.66 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2564425219
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.5%

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: Nov 1
Current: $3,059 SGD|Low: $737 SGD|High: $3,064 SGD|Avg: $1,156 SGD|-0.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 3, 2026
Retailer 10$737 SGD
Retailer 11$738 SGD
Retailer 18$863 SGD
Retailer 3$893 SGD
Retailer 8$925 SGD
Retailer 6$976 SGD
Retailer 5$983 SGD
Retailer 12$1,005 SGD
Retailer 7$1,012 SGD
Retailer 9$1,116 SGD
Retailer 15$1,137 SGD
Retailer 4$1,145 SGD
Retailer 2$1,147 SGD
Retailer 17$1,156 SGD
Retailer 13$1,253 SGD
Retailer 14$1,280 SGD
Retailer 16$1,774 SGD
NZ Jewellers$3,059 SGD

24 data points across 18 retailers

18 retailers$737 SGD to $3,059 SGD

A
Cheapest Retailer
-
$737 SGD
HK$4,500 HKD
A
Retailer 2
-
$738 SGD
₹54,965 INR
View
A
Retailer 3
-
$863 SGD
$675 USD
View
A
Retailer 4
-
$893 SGD
$698 USD
View
Final sale: no returns
A
Retailer 5
-
$925 SGD
A$1,113 AUD
View
A
Retailer 6
-
$976 SGD
$763 USD
View
A
Retailer 7
-
$983 SGD
$769 USD
View
A
Retailer 8
-
$1,005 SGD
$786 USD
View
A
Retailer 9
-
$1,012 SGD
$791 USD
View
Retailer 10
-
$1,116 SGD
$873 USD
View
Price last confirmed 7 days ago
A
Retailer 11
-
$1,137 SGD
$889 USD
View
A
Retailer 12
-
$1,145 SGD
£705 GBP
View
B+
Retailer 13
-
$1,147 SGD
£706 GBP
View
B+
Retailer 14
-
$1,156 SGD
$904 USD
View
B+
Retailer 15
-
$1,253 SGD
£771 GBP
View
B+
Retailer 16
-
$1,280 SGD
€953 EUR
View
B
Retailer 17
-
$1,774 SGD
£1,092 GBP
View
Most Expensive
B
NZ Jewellers
0fcc5155-f3b0-456c-ae41-b3fa574cead4 · Oct 30
$3,059 SGD
$2,392 USD
View
17 more retailers have this diamond
Prices start from $737 SGDSave up to $2,322 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
$737 SGD