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Round|Natural|GIA

0.65ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2557581317

Certificate GIA 2557581317

Diamond specifications and retailer prices

From $968 AUD
HK$5,300 HKD
As of November 1, 2026
Save $1,415 AUD (59%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,018 AUD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 0.65ct natural round diamond

This 0.65ct natural round sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2557581317. Listed at 21 retailers as of November 1, 2026, with a 146% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.65
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2557581317
Dimensions5.53 × 5.56 × 3.46 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
5.53 mm5.56 mm0.65 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2557581317
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.4%

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: $3,848 AUD|Low: $895 AUD|High: $3,980 AUD|Avg: $1,648 AUD|-3.3%
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 2, 2026
Retailer 14$968 AUD
Retailer 12$999 AUD
Retailer 3$1,026 AUD
Retailer 6$1,070 AUD
Retailer 11$1,129 AUD
Retailer 8$1,156 AUD
Retailer 13$1,179 AUD
Retailer 18$1,193 AUD
Retailer 9$1,264 AUD
Retailer 2$1,312 AUD
Retailer 4$1,370 AUD
Retailer 16$1,418 AUD
Retailer 10$1,680 AUD
Retailer 7$1,838 AUD
Retailer 5$1,860 AUD
Retailer 17$2,247 AUD
Retailer 15$2,383 AUD
NZ Jewellers$3,848 AUD

26 data points across 18 retailers

21 retailers$968 AUD to $2,383 AUD

A
Cheapest Retailer
-
$968 AUD
HK$5,300 HKD
A
Retailer 2
-
$999 AUD
$700 USD
View
A
Retailer 3
-
$1,026 AUD
$719 USD
View
Final sale: no returns
A
Retailer 4
-
$1,070 AUD
$750 USD
View
A
Retailer 5
-
$1,129 AUD
$791 USD
View
Retailer 6
-
$1,156 AUD
$810 USD
View
Price last confirmed 11 days ago
A
Retailer 7
-
$1,179 AUD
View
A
Retailer 8
-
$1,193 AUD
€796 EUR
View
Retailer 9
-
$1,264 AUD
SGD 1,197 SGD
View
Price last confirmed 10 days ago
A
Retailer 10
-
$1,312 AUD
£724 GBP
View
A
Retailer 11
-
$1,370 AUD
$960 USD
View
A
Retailer 12
-
$1,418 AUD
$994 USD
View
B+
Retailer 13
-
$1,584 AUD
View
Retailer 14
-
$1,838 AUD
$1,288 USD
View
Price last confirmed 7 days ago
B+
Retailer 15
-
$1,860 AUD
ZAR 21,053 ZAR
View
Retailer 16
-
$1,909 AUD
View
Price last confirmed 29 days ago
B
Retailer 17
-
$2,247 AUD
£1,240 GBP
View
B
Retailer 18
-
$2,383 AUD
$1,670 USD
View
Retailer 19
-
$3,843 AUD
$2,693 USD
View
Price last confirmed 52 days ago
Retailer 20
-
$3,848 AUD
$2,697 USD
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
2642d381-e9c3-4b06-98d3-de2bed1e91f8 · Sep 28
$4,018 AUD
$2,816 USD
View
Price last confirmed 35 days ago
20 more retailers have this diamond
Prices start from $968 AUDSave up to $1,415 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
0.65ct Round
$968 AUD