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0.66ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 3565704527

Certificate GIA 3565704527

Diamond specifications and retailer prices

From $1,127 NZD
SGD 857 SGD
As of October 31, 2026
Save $923 NZD (45%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,050 NZD at Frank Darling · As of October 30, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3565704527. Listed at 10 retailers as of October 30, 2026, with prices from $1,127 to $2,050, a $923 spread on the same certified stone. Frank Darling lists it at $2,050. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 3565704527
Dimensions5.53 × 3.47 × 3.47 mm
L/W Ratio1.59
Culet sizeNone
Top View
5.53 mm3.47 mm0.66 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3565704527
Side View
Table 58.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.6%

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: Oct 31
Current: $2,050 NZD|Low: $1,307 NZD|High: $2,050 NZD|Avg: $1,671 NZD
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 9$1,307 NZD
Retailer 7$1,374 NZD
Retailer 2$1,455 NZD
Retailer 8$1,699 NZD
Retailer 6$1,749 NZD
Retailer 3$1,765 NZD
Retailer 5$1,827 NZD
Retailer 4$1,951 NZD
Frank Darling$2,050 NZD

7 data points across 9 retailers

10 retailers$1,127 NZD to $2,050 NZD

A
Cheapest Retailer
-
$1,127 NZD
SGD 857 SGD
A
Retailer 2
-
$1,307 NZD
SGD 994 SGD
View
A
Retailer 3
-
$1,374 NZD
$773 USD
View
A
Retailer 4
-
$1,455 NZD
£644 GBP
View
B+
Retailer 5
-
$1,699 NZD
$956 USD
View
B+
Retailer 6
-
$1,749 NZD
£775 GBP
View
B+
Retailer 7
-
$1,765 NZD
€946 EUR
View
B+
Retailer 8
-
$1,827 NZD
$1,028 USD
View
B+
Retailer 9
-
$1,951 NZD
$1,098 USD
View
Most Expensive
B
Frank Darling
2708874HK · Oct 30
$2,050 NZD
$1,153 USD
View
9 more retailers have this diamond
Prices start from $1,127 NZDSave up to $923 NZD

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
$1,127 NZD