CaratHunter
Plans
Round|Natural|GIA

0.66ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6501281572

Certificate GIA 6501281572

Diamond specifications and retailer prices

From $671 SGD
HK$4,100 HKD
As of November 1, 2026
Save $1,802 SGD (73%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,473 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 6501281572. Listed at 14 retailers as of October 30, 2026, with prices from $671 to $2,473, a $1,802 spread on the same certified stone. NZ Jewellers lists it at $2,473. 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
FluorescenceStrong
Crown angle35°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6501281572
Dimensions5.58 × 5.56 × 3.46 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
5.58 mm5.56 mm0.66 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6501281572
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.2%

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: $2,473 SGD|Low: $671 SGD|High: $2,473 SGD|Avg: $1,099 SGD
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
November 3, 2026
Retailer 4$671 SGD
Retailer 10$728 SGD
Retailer 9$799 SGD
Retailer 11$849 SGD
Retailer 14$849 SGD
Retailer 6$871 SGD
Retailer 3$911 SGD
Retailer 13$911 SGD
Retailer 7$965 SGD
Retailer 5$989 SGD
Retailer 2$1,058 SGD
Retailer 12$1,135 SGD
Retailer 8$1,822 SGD
NZ Jewellers$2,473 SGD

40 data points across 14 retailers

14 retailers$671 SGD to $2,473 SGD

A
Cheapest Retailer
-
$671 SGD
HK$4,100 HKD
A
Retailer 2
-
$728 SGD
$569 USD
View
Final sale: no returns
Retailer 3
-
$789 SGD
$617 USD
View
Price last confirmed 49 days ago
A
Retailer 4
-
$799 SGD
$625 USD
View
Retailer 5
-
$827 SGD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$849 SGD
$664 USD
View
A
Retailer 7
-
$849 SGD
$664 USD
View
Retailer 8
-
$911 SGD
$712 USD
View
Price last confirmed 7 days ago
A
Retailer 9
-
$911 SGD
$712 USD
View
A
Retailer 10
-
$965 SGD
£594 GBP
View
A
Retailer 11
-
$1,058 SGD
€788 EUR
View
B+
Retailer 12
-
$1,135 SGD
$887 USD
View
B
Retailer 13
-
$1,822 SGD
£1,122 GBP
View
Most Expensive
B
NZ Jewellers
108d9daa-d786-4562-9ea8-ae75631ea637 · Oct 30
$2,473 SGD
$1,934 USD
View
13 more retailers have this diamond
Prices start from $671 SGDSave up to $1,802 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
$671 SGD