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Round|Natural|GIA

0.66ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6243098119

Certificate GIA 6243098119

Diamond specifications and retailer prices

From $1,095 AUD
$767 USD
As of October 31, 2026
Save $689 AUD (39%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,784 AUD at Frank Darling · As of November 2, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6243098119. Listed at 12 retailers as of October 31, 2026, with prices from $1,095 to $1,784, a $689 spread on the same certified stone. Frank Darling lists it at $1,784. 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
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6243098119
Dimensions5.53 × 5.56 × 3.48 mm
L/W Ratio1.01
Culet sizeNone
Top View
5.53 mm5.56 mm0.66 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6243098119
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

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: $1,784 AUD|Low: $1,095 AUD|High: $1,784 AUD|Avg: $1,388 AUD
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 3$1,095 AUD
Retailer 11$1,184 AUD
Retailer 9$1,193 AUD
Retailer 6$1,217 AUD
Retailer 2$1,326 AUD
Retailer 4$1,376 AUD
Retailer 8$1,376 AUD
Retailer 10$1,558 AUD
Retailer 5$1,594 AUD
Retailer 7$1,765 AUD
Frank Darling$1,784 AUD

17 data points across 11 retailers

12 retailers$1,095 AUD to $1,784 AUD

A
Cheapest Retailer
-
$1,095 AUD
$767 USD
A
Retailer 2
-
$1,147 AUD
SGD 1,086 SGD
View
A
Retailer 3
-
$1,184 AUD
$830 USD
View
A
Retailer 4
-
$1,193 AUD
SGD 1,130 SGD
View
B+
Retailer 5
-
$1,217 AUD
$853 USD
View
B+
Retailer 6
-
$1,326 AUD
£732 GBP
View
B+
Retailer 7
-
$1,376 AUD
$964 USD
View
B+
Retailer 8
-
$1,376 AUD
$964 USD
View
B+
Retailer 9
-
$1,558 AUD
£860 GBP
View
B+
Retailer 10
-
$1,594 AUD
€1,064 EUR
View
Retailer 11
-
$1,765 AUD
$1,237 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Frank Darling
2706048HK · Nov 2
$1,784 AUD
$1,250 USD
View
11 more retailers have this diamond
Prices start from $1,095 AUDSave up to $689 AUD

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
$1,095 AUD