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Round|Natural|GIA

1.05ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1519052866

Certificate GIA 1519052866

Diamond specifications and retailer prices

From $5,359 NZD
As of November 6, 2026
Save $5,766 NZD (52%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $11,125 NZD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 1519052866. Listed at 18 retailers as of November 5, 2026, with prices from $5,359 to $11,125, a $5,766 spread on the same certified stone. Diamond Quarter lists it at $11,125. 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°
OriginNatural
Grading LabGIA
CertificateGIA 1519052866
Dimensions6.52 × 6.49 × 4.04 mm
L/W Ratio1.00
Star length45%
Lower girdle75%
Girdle conditionFaceted
Culet sizeNone
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
6.52 mm6.49 mm1.05 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1519052866
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.1%

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 6
Current: $5,778 NZD|Low: $5,448 NZD|High: $10,219 NZD|Avg: $6,757 NZD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$5,448 NZD
Retailer 8$5,572 NZD
Retailer 1$5,778 NZD
Retailer 2$6,209 NZD
Retailer 9$6,449 NZD
Retailer 4$7,010 NZD
Retailer 3$7,014 NZD
Retailer 5$7,369 NZD
Retailer 6$10,069 NZD

34 data points across 9 retailers

18 retailers$5,359 NZD to $11,125 NZD

B+
Cheapest Retailer
-
$5,359 NZD
B+
Retailer 2
-
$5,448 NZD
View
B+
Retailer 3
-
$5,572 NZD
View
Final sale: no returns
B+
Retailer 4
-
$5,778 NZD
View
B+
Retailer 5
-
$5,836 NZD
View
Retailer 6
-
$6,038 NZD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$6,038 NZD
View
B+
Retailer 8
-
$6,209 NZD
View
B+
Retailer 9
-
$6,270 NZD
View
Retailer 10
-
$6,449 NZD
View
Price last confirmed 30 days ago
B+
Retailer 11
-
$6,671 NZD
View
B
Retailer 12
-
$6,967 NZD
View
B+
Retailer 13
-
$7,010 NZD
View
B+
Retailer 14
-
$7,014 NZD
View
B
Retailer 15
-
$7,369 NZD
View
B
Retailer 16
-
$10,069 NZD
View
B
Retailer 17
-
$10,519 NZD
View
Most Expensive
B
Diamond Quarter
1.05SI1H1566220DN · Nov 5
$11,125 NZD
£4,856 GBP
View
17 more retailers have this diamond
Prices start from $5,359 NZDSave up to $5,766 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.

B+
1.05ct Round
$5,359 NZD