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Round|Natural|GIA

1.05ct H I1 Round Natural Diamond

EX • H/I1 • GIA 6425595989

Certificate GIA 6425595989

Diamond specifications and retailer prices

From $2,671 AUD
$1,876 USD
As of November 1, 2026
Save $3,509 AUD (57%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $6,180 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.05ct natural round diamond

This 1.05ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 6425595989. Listed at 7 retailers as of October 30, 2026, with prices from $2,671 to $6,180, a $3,509 spread on the same certified stone. NZ Jewellers lists it at $6,180. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
H
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6425595989
Dimensions6.49 × 6.46 × 4.04 mm
L/W Ratio1.00
Top View
6.49 mm6.46 mm1.05 ctH / I1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6425595989
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

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: $6,180 AUD|Low: $2,671 AUD|High: $6,180 AUD|Avg: $3,529 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 9$2,671 AUD
Retailer 7$2,789 AUD
Retailer 4$2,955 AUD
Retailer 6$2,955 AUD
Retailer 3$3,092 AUD
Retailer 5$3,411 AUD
Retailer 8$3,517 AUD
Retailer 10$3,605 AUD
Retailer 2$4,019 AUD
NZ Jewellers$6,180 AUD

21 data points across 10 retailers

7 retailers$2,671 AUD to $6,180 AUD

B+
Cheapest Retailer
-
$2,671 AUD
$1,876 USD
B+
Retailer 2
-
$2,955 AUD
$2,076 USD
View
B+
Retailer 3
-
$2,955 AUD
$2,076 USD
View
B+
Retailer 4
-
$3,092 AUD
$2,172 USD
View
B
Retailer 5
-
$3,411 AUD
$2,396 USD
View
B
Retailer 6
-
$4,019 AUD
€2,689 EUR
View
Most Expensive
B
NZ Jewellers
c4d2fe79-2c19-4ff9-bc90-d82f61b0973f · Oct 30
$6,180 AUD
$4,341 USD
View
6 more retailers have this diamond
Prices start from $2,671 AUDSave up to $3,509 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+
1.05ct Round
$2,671 AUD