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Round|Natural|GIA

1.05ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7496000425

Certificate GIA 7496000425

Diamond specifications and retailer prices

From $3,463 NZD
As of November 6, 2026
Save $6,281 NZD (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $9,745 NZD at NZ Jewellers · As of November 5, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7496000425. Listed at 18 retailers as of November 5, 2026, with prices from $3,463 to $9,745, a $6,281 spread on the same certified stone. NZ Jewellers lists it at $9,745. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.05
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7496000425
Dimensions6.61 × 6.57 × 3.94 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Culet sizeNone
Key to symbols
Crystal, Twinning Wisp, Feather, Indented Natural, Needle
Top View
6.61 mm6.57 mm1.05 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 7496000425
Side View
Table 59.0%Crown 32.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 59.7%

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: $4,459 NZD|Low: $3,463 NZD|High: $8,265 NZD|Avg: $4,950 NZD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7$3,463 NZD
Retailer 10$3,550 NZD
Retailer 8$3,815 NZD
Retailer 2$4,221 NZD
Retailer 1$4,459 NZD
Retailer 3$4,903 NZD
Retailer 9$5,222 NZD
Retailer 6$5,231 NZD
Retailer 4$5,690 NZD
Retailer 5$8,143 NZD

38 data points across 10 retailers

18 retailers$3,463 NZD to $9,745 NZD

A
Cheapest Retailer
-
$3,463 NZD
A
Retailer 2
-
$3,550 NZD
View
Final sale: no returns
A
Retailer 3
-
$3,815 NZD
View
A
Retailer 4
-
$4,221 NZD
View
A
Retailer 5
-
$4,223 NZD
View
Retailer 6
-
$4,223 NZD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$4,418 NZD
View
A
Retailer 8
-
$4,459 NZD
View
B+
Retailer 9
-
$4,871 NZD
View
B+
Retailer 10
-
$4,871 NZD
View
B+
Retailer 11
-
$4,872 NZD
View
B+
Retailer 12
-
$4,903 NZD
View
B+
Retailer 13
-
$5,033 NZD
View
Retailer 14
-
$5,222 NZD
View
Price last confirmed 30 days ago
B+
Retailer 15
-
$5,231 NZD
View
B+
Retailer 16
-
$5,690 NZD
View
B
Retailer 17
-
$8,143 NZD
View
Most Expensive
B
NZ Jewellers
aacb2e51-d5c4-41d4-a85f-c2cbc8c4d6c6 · Nov 5
$9,745 NZD
$5,402 USD
View
17 more retailers have this diamond
Prices start from $3,463 NZDSave up to $6,281 NZD

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
1.05ct Round
$3,463 NZD