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Round|Natural|GIA

1.00ct F SI1 Round Natural Diamond

VG • F/SI1 • GIA 2556896081

Certificate GIA 2556896081

Diamond specifications and retailer prices

From $2,738 AUD
As of November 5, 2026
Save $1,669 AUD (38%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $7,159 AUD at NZ Jewellers · As of October 20, 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 SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 2556896081. Listed at 23 retailers as of November 5, 2026, with a 61% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle38.5°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 2556896081
Dimensions6.13 × 6.21 × 4.01 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.13 mm6.21 mm1.00 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2556896081
Side View
Table 57.0%Crown 38.5°Girdle: MED-THKPavilion 39.8°Culet: NoneDepth 64.9%

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 5
Current: $7,159 AUD|Low: $2,515 AUD|High: $7,629 AUD|Avg: $4,040 AUD|-6.2%
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
Retailer 19
Retailer 20
November 6, 2026
Retailer 7$2,595 AUD
Retailer 4$2,738 AUD
Retailer 2$2,950 AUD
Retailer 5$3,014 AUD
Retailer 19$3,177 AUD
Retailer 16$3,282 AUD
Retailer 8$3,425 AUD
Retailer 14$3,449 AUD
Retailer 10$3,540 AUD
Retailer 6$3,769 AUD
Retailer 20$3,769 AUD
Retailer 17$3,791 AUD
Retailer 15$3,900 AUD
Retailer 11$3,951 AUD
Retailer 12$4,088 AUD
Retailer 18$4,200 AUD
Retailer 3$4,398 AUD
Retailer 13$4,407 AUD
Retailer 9$6,031 AUD
NZ Jewellers$7,159 AUD

29 data points across 20 retailers

23 retailers$2,738 AUD to $4,407 AUD

Retailer 1
-
$2,595 AUD
Price last confirmed 17 days ago
A
Retailer 2
-
$2,738 AUD
View
A
Retailer 3
-
$2,950 AUD
View
A
Retailer 4
-
$3,014 AUD
View
Final sale: no returns
B+
Retailer 5
-
$3,177 AUD
View
A
Retailer 6
-
$3,282 AUD
View
Retailer 7
-
$3,425 AUD
View
Price last confirmed 21 days ago
Retailer 8
-
$3,425 AUD
View
Price last confirmed 17 days ago
A
Retailer 9
-
$3,449 AUD
View
Retailer 10
-
$3,540 AUD
View
Price last confirmed 16 days ago
Retailer 11
-
$3,582 AUD
View
Price last confirmed 22 days ago
B+
Retailer 12
-
$3,649 AUD
View
B+
Retailer 13
-
$3,769 AUD
View
B+
Retailer 14
-
$3,769 AUD
View
B+
Retailer 15
-
$3,791 AUD
View
B+
Retailer 16
-
$3,900 AUD
View
Retailer 17
-
$3,951 AUD
View
Price last confirmed 16 days ago
Retailer 18
-
$4,088 AUD
View
Price last confirmed 30 days ago
B+
Retailer 19
-
$4,200 AUD
View
B+
Retailer 20
-
$4,398 AUD
View
B+
Retailer 21
-
$4,407 AUD
View
Retailer 22
-
$6,031 AUD
View
Price last confirmed 18 days ago
Most Expensive
NZ Jewellers
52f2d7f9-d700-44ed-818a-b4ad071c95b0 · Oct 20
$7,159 AUD
$4,919 USD
View
Price last confirmed 17 days ago
22 more retailers have this diamond
Prices start from $2,738 AUDSave up to $1,669 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
1.00ct Round
$2,738 AUD