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Round|Natural|GIA

1.05ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6505241872

Certificate GIA 6505241872

Diamond specifications and retailer prices

From $3,229 NZD
As of November 6, 2026
Save $5,731 NZD (64%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,960 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6505241872. Listed at 13 retailers as of November 5, 2026, with prices from $3,229 to $8,960, a $5,731 spread on the same certified stone. NZ Jewellers lists it at $8,960. 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6505241872
Dimensions6.45 × 6.51 × 4.06 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Top View
6.45 mm6.51 mm1.05 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6505241872
Side View
Table 57.0%Crown 35.5°Girdle: MediumPavilion 41.2°Culet: NoneDepth 62.6%

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: $8,960 NZD|Low: $3,229 NZD|High: $9,368 NZD|Avg: $5,245 NZD|-4.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2$3,229 NZD
Retailer 11$3,431 NZD
Retailer 9$3,871 NZD
Retailer 3$4,050 NZD
Retailer 4$4,100 NZD
Retailer 7$4,506 NZD
Retailer 5$4,537 NZD
Retailer 6$5,051 NZD
Retailer 8$5,231 NZD
Retailer 10$7,488 NZD
NZ Jewellers$8,960 NZD

27 data points across 11 retailers

13 retailers$3,229 NZD to $8,960 NZD

A
Cheapest Retailer
-
$3,229 NZD
A
Retailer 2
-
$3,431 NZD
View
Final sale: no returns
A
Retailer 3
-
$3,871 NZD
View
A
Retailer 4
-
$4,050 NZD
View
A
Retailer 5
-
$4,100 NZD
View
A
Retailer 6
-
$4,180 NZD
View
A
Retailer 7
-
$4,506 NZD
View
A
Retailer 8
-
$4,537 NZD
View
B+
Retailer 9
-
$5,051 NZD
View
B+
Retailer 10
-
$5,231 NZD
View
Retailer 11
-
$5,455 NZD
View
Price last confirmed 30 days ago
B
Retailer 12
-
$7,488 NZD
View
Most Expensive
B
NZ Jewellers
bd109b5e-5f66-43ef-8a97-8f8c565ab457 · Nov 5
$8,960 NZD
$4,967 USD
View
12 more retailers have this diamond
Prices start from $3,229 NZDSave up to $5,731 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
$3,229 NZD