Round|Natural|GIA

1.03ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 1505020864

Certificate GIA 1505020864

Diamond specifications and retailer prices

From $5,765 NZD
As of November 4, 2026
Save $7,699 NZD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $13,464 NZD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1505020864. Listed at 18 retailers as of November 4, 2026, with prices from $5,765 to $13,464, a $7,699 spread on the same certified stone. Diamond Quarter lists it at $13,464. 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

1.03
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1505020864
Dimensions6.39 × 6.44 × 4.03 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.39 mm6.44 mm1.03 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1505020864
Side View
Table 57.0%Crown 36.5°Girdle: MediumPavilion 40.8°Culet: NDepth 62.7%

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 4
Current: $8,242 NZD|Low: $5,194 NZD|High: $11,428 NZD|Avg: $7,564 NZD|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 8$6,082 NZD
Retailer 5$6,233 NZD
Retailer 7$6,753 NZD
Retailer 3$6,945 NZD
Retailer 6$7,233 NZD
Retailer 2$7,854 NZD
Retailer 1$8,242 NZD
Retailer 4$11,292 NZD

40 data points across 8 retailers

18 retailers$5,765 NZD to $13,464 NZD

B+
Cheapest Retailer
-
$5,765 NZD
B+
Retailer 2
-
$5,995 NZD
View
B+
Retailer 3
-
$6,082 NZD
View
B+
Retailer 4
-
$6,233 NZD
View
Final sale: no returns
B+
Retailer 5
-
$6,466 NZD
View
Retailer 6
-
$6,753 NZD
View
Price last confirmed 8 days ago
Retailer 7
-
$6,753 NZD
View
Price last confirmed 36 days ago
B+
Retailer 8
-
$6,945 NZD
View
Retailer 9
-
$7,012 NZD
View
Price last confirmed 38 days ago
B+
Retailer 10
-
$7,012 NZD
View
Retailer 11
-
$7,233 NZD
View
Price last confirmed 29 days ago
Retailer 12
-
$7,792 NZD
View
Price last confirmed 38 days ago
B+
Retailer 13
-
$7,854 NZD
View
B+
Retailer 14
-
$8,242 NZD
View
B
Retailer 15
-
$11,292 NZD
View
Retailer 16
-
$11,764 NZD
View
Price last confirmed 39 days ago
B
Retailer 17
-
$11,764 NZD
View
Most Expensive
B
Diamond Quarter
1.03SI1E15648828N · Nov 5
$13,464 NZD
£5,960 GBP
View
17 more retailers have this diamond
Prices start from $5,765 NZDSave up to $7,699 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+
1.03ct Round
$5,765 NZD