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Round|Natural|GIA

1.00ct I SI2 Round Natural Diamond

VG • I/SI2 • GIA 5556658545

Certificate GIA 5556658545

Diamond specifications and retailer prices

From $2,084 AUD
As of November 6, 2026
Save $2,696 AUD (56%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $6,810 AUD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 5556658545. Listed at 26 retailers as of November 4, 2026, with a 129% 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
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5556658545
Dimensions6.21 × 4.03 × 4.03 mm
L/W Ratio1.54
Culet sizeNone
Top View
6.21 mm4.03 mm1.00 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556658545
Side View
Table 57.0%Crown 37.5°Girdle: MED-THKPavilion 40.8°Culet: NoneDepth 64.6%

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 6
Current: $2,581 AUD|Low: $2,028 AUD|High: $4,950 AUD|Avg: $2,850 AUD|-1.7%
Retailer 1
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
November 6, 2026
Retailer 7$2,034 AUD
Retailer 3$2,084 AUD
Retailer 6$2,131 AUD
Retailer 4$2,258 AUD
Retailer 16$2,288 AUD
Retailer 2$2,354 AUD
Retailer 15$2,571 AUD
Retailer 1$2,581 AUD
Retailer 8$2,763 AUD
Retailer 5$2,900 AUD
Retailer 12$2,900 AUD
Retailer 9$2,953 AUD
Retailer 13$3,000 AUD
Retailer 14$3,333 AUD
Retailer 10$3,474 AUD
Retailer 11$4,780 AUD

27 data points across 16 retailers

26 retailers$2,084 AUD to $4,780 AUD

Retailer 1
-
$2,034 AUD
Price last confirmed 22 days ago
A
Retailer 2
-
$2,084 AUD
View
A
Retailer 3
-
$2,131 AUD
View
A
Retailer 4
-
$2,258 AUD
View
A
Retailer 5
-
$2,288 AUD
View
Final sale: no returns
A
Retailer 6
-
$2,354 AUD
View
A
Retailer 7
-
$2,571 AUD
View
A
Retailer 8
-
$2,581 AUD
View
Retailer 9
-
$2,680 AUD
View
Price last confirmed 21 days ago
B+
Retailer 10
-
$2,730 AUD
View
Retailer 11
-
$2,763 AUD
View
Price last confirmed 21 days ago
Retailer 12
-
$2,791 AUD
View
Price last confirmed 28 days ago
Retailer 13
-
$2,803 AUD
View
Price last confirmed 22 days ago
A
Retailer 14
-
$2,900 AUD
View
A
Retailer 15
-
$2,900 AUD
View
B+
Retailer 16
-
$2,953 AUD
View
Retailer 17
-
$2,960 AUD
View
Price last confirmed 51 days ago
B+
Retailer 18
-
$3,000 AUD
View
Retailer 19
-
$3,091 AUD
View
Price last confirmed 21 days ago
B+
Retailer 20
-
$3,333 AUD
View
Retailer 21
-
$3,416 AUD
View
Price last confirmed 53 days ago
B+
Retailer 22
-
$3,474 AUD
View
B
Retailer 23
-
$4,780 AUD
View
Retailer 24
-
$6,188 AUD
View
Price last confirmed 52 days ago
Retailer 25
-
$6,188 AUD
View
Price last confirmed 48 days ago
Most Expensive
NZ Jewellers
8b009770-1bb8-4274-86ca-3ce52310d4c6 · Sep 28
$6,810 AUD
$4,767 USD
View
Price last confirmed 39 days ago
25 more retailers have this diamond
Prices start from $2,084 AUDSave up to $2,696 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
$2,084 AUD