CaratHunter
Plans
Round|Natural|GIA

0.66ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6535595588

Certificate GIA 6535595588

Diamond specifications and retailer prices

From $1,024 NZD
HK$4,500 HKD
As of November 1, 2026
Save $1,479 NZD (59%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,503 NZD at MOH London · As of November 1, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6535595588. Listed at 11 retailers as of November 1, 2026, with prices from $1,024 to $2,503, a $1,479 spread on the same certified stone. MOH London lists it at $2,503. 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 angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6535595588
Dimensions5.53 × 5.57 × 3.48 mm
L/W Ratio1.01
Top View
5.53 mm5.57 mm0.66 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535595588
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°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: Nov 1
Current: $2,503 NZD|Low: $1,001 NZD|High: $2,625 NZD|Avg: $1,774 NZD|-4.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 5$1,024 NZD
Retailer 10$1,367 NZD
Retailer 8$1,388 NZD
Retailer 7$1,419 NZD
Retailer 9$1,566 NZD
Retailer 3$1,603 NZD
Retailer 2$1,621 NZD
Retailer 4$1,928 NZD
Retailer 6$2,042 NZD
Retailer 11$2,056 NZD
MOH London$2,503 NZD

43 data points across 11 retailers

11 retailers$1,024 NZD to $2,503 NZD

A
Cheapest Retailer
-
$1,024 NZD
HK$4,500 HKD
A
Retailer 2
-
$1,367 NZD
$769 USD
View
A
Retailer 3
-
$1,388 NZD
$781 USD
View
A
Retailer 4
-
$1,419 NZD
SGD 1,079 SGD
View
B+
Retailer 5
-
$1,566 NZD
$881 USD
View
B+
Retailer 6
-
$1,603 NZD
$902 USD
View
B+
Retailer 7
-
$1,621 NZD
£718 GBP
View
B+
Retailer 8
-
$1,928 NZD
€1,033 EUR
View
B+
Retailer 9
-
$2,042 NZD
ZAR 18,558 ZAR
View
Retailer 10
-
$2,056 NZD
A$1,780 AUD
View
Price last confirmed 30 days ago
Most Expensive
B
MOH London
713A3B4D4 · Nov 1
$2,503 NZD
£1,109 GBP
View
10 more retailers have this diamond
Prices start from $1,024 NZDSave up to $1,479 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
$1,024 NZD