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Radiant|Natural|GIA

1.00ct H SI1 Radiant Natural Diamond

GD • H/SI1 • GIA 2556511021

Certificate GIA 2556511021

Diamond specifications and retailer prices

From $2,726 AUD
As of November 6, 2026
Save $4,977 AUD (65%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $7,703 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2556511021. Listed at 21 retailers as of November 5, 2026, with prices from $2,726 to $7,703, a $4,977 spread on the same certified stone. NZ Jewellers lists it at $7,703. 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
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556511021
Dimensions7.71 × 4.78 × 3.20 mm
L/W Ratio1.61
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather, Needle, Pinpoint
Top View
7.71 mm4.78 mm1.00 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556511021
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.8%

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: $7,703 AUD|Low: $2,602 AUD|High: $7,703 AUD|Avg: $3,940 AUD|+5.1%
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
November 7, 2026
Retailer 16$2,726 AUD
Retailer 7$3,231 AUD
Retailer 4$3,254 AUD
Retailer 6$3,330 AUD
Retailer 14$3,377 AUD
Retailer 10$3,401 AUD
Retailer 11$3,487 AUD
Retailer 2$3,631 AUD
Retailer 5$3,685 AUD
Retailer 12$3,828 AUD
Retailer 13$3,871 AUD
Retailer 17$3,889 AUD
Retailer 15$4,148 AUD
Retailer 19$4,221 AUD
Retailer 8$4,242 AUD
Retailer 18$4,270 AUD
Retailer 3$4,497 AUD
Retailer 9$6,073 AUD
NZ Jewellers$7,703 AUD

17 data points across 19 retailers

21 retailers$2,726 AUD to $7,703 AUD

A
Cheapest Retailer
-
$2,726 AUD
B+
Retailer 2
-
$3,231 AUD
View
B+
Retailer 3
-
$3,254 AUD
View
B+
Retailer 4
-
$3,330 AUD
View
B+
Retailer 5
-
$3,377 AUD
View
Final sale: no returns
B+
Retailer 6
-
$3,401 AUD
View
Retailer 7
-
$3,487 AUD
View
Price last confirmed 9 days ago
B
Retailer 8
-
$3,631 AUD
View
B
Retailer 9
-
$3,685 AUD
View
B
Retailer 10
-
$3,828 AUD
View
B
Retailer 11
-
$3,871 AUD
View
B
Retailer 12
-
$3,889 AUD
View
Retailer 13
-
$4,114 AUD
View
Price last confirmed 62 days ago
B
Retailer 14
-
$4,148 AUD
View
B
Retailer 15
-
$4,221 AUD
View
B
Retailer 16
-
$4,242 AUD
View
B
Retailer 17
-
$4,270 AUD
View
Retailer 18
-
$4,341 AUD
View
Price last confirmed 31 days ago
B
Retailer 19
-
$4,497 AUD
View
B
Retailer 20
-
$6,073 AUD
View
Most Expensive
C
NZ Jewellers
ddff99e5-3010-47f4-a91f-cf2cb293f2eb · Nov 5
$7,703 AUD
$5,293 USD
View
20 more retailers have this diamond
Prices start from $2,726 AUDSave up to $4,977 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 Radiant
$2,726 AUD