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Round|Natural|GIA

1.00ct F I1 Round Natural Diamond

VG • F/I1 • GIA 1428408599

Certificate GIA 1428408599

Diamond specifications and retailer prices

From $2,624 AUD
HK$14,400 HKD
As of November 1, 2026
Save $4,709 AUD (64%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,333 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded F colour (colourless) and I1 clarity (included), with a very-good cut grade and certified by GIA 1428408599. Listed at 12 retailers as of October 30, 2026, with prices from $2,624 to $7,333, a $4,709 spread on the same certified stone. NZ Jewellers lists it at $7,333. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
F
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1428408599
Dimensions6.46 × 6.40 × 3.89 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cavity, Crystal, Cloud, Needle, Indented Natural, Natural
Top View
6.46 mm6.40 mm1.00 ctF / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1428408599
Side View
Table 62.0%Crown 32°Girdle: STK-THKPavilion 41.6°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $7,333 AUD|Low: $2,606 AUD|High: $7,333 AUD|Avg: $3,682 AUD
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 1, 2026
Retailer 7$2,624 AUD
Retailer 8$2,812 AUD
Retailer 10$2,849 AUD
Retailer 14$2,870 AUD
Retailer 11$3,177 AUD
Retailer 13$3,177 AUD
Retailer 9$3,324 AUD
Retailer 12$3,666 AUD
Retailer 4$3,673 AUD
Retailer 6$3,673 AUD
Retailer 5$3,787 AUD
Retailer 3$4,173 AUD
Retailer 2$4,360 AUD
NZ Jewellers$7,333 AUD

18 data points across 14 retailers

12 retailers$2,624 AUD to $7,333 AUD

B+
Cheapest Retailer
-
$2,624 AUD
HK$14,400 HKD
B+
Retailer 2
-
$2,812 AUD
$1,975 USD
View
B+
Retailer 3
-
$2,849 AUD
$2,001 USD
View
B
Retailer 4
-
$3,177 AUD
$2,232 USD
View
B
Retailer 5
-
$3,177 AUD
$2,232 USD
View
B
Retailer 6
-
$3,324 AUD
$2,335 USD
View
B
Retailer 7
-
$3,666 AUD
$2,575 USD
View
B
Retailer 8
-
$3,673 AUD
$2,580 USD
View
B
Retailer 9
-
$3,673 AUD
$2,580 USD
View
B
Retailer 10
-
$3,787 AUD
$2,660 USD
View
B
Retailer 11
-
$4,360 AUD
€2,917 EUR
View
Most Expensive
C
NZ Jewellers
2322e5a0-8041-479e-a371-46dfcafacd32 · Oct 30
$7,333 AUD
$5,151 USD
View
11 more retailers have this diamond
Prices start from $2,624 AUDSave up to $4,709 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.

B+
1.00ct Round
$2,624 AUD