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Round|Natural|GIA

1.03ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 5242070995

Certificate GIA 5242070995

Diamond specifications and retailer prices

From €1,714 EUR
$1,915 USD
As of October 28, 2026
Save €2,025 EUR (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €3,739 EUR at Helzberg Diamonds · As of October 30, 2026
View at Helzberg Diamonds

About this 1.03ct natural round diamond

This 1.03ct 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 5242070995. Listed at 16 retailers as of October 28, 2026, with prices from €1,714 to €3,739, a €2,025 spread on the same certified stone. Helzberg Diamonds lists it at €3,739. 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
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 5242070995
Dimensions6.48 × 6.50 × 4.04 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.48 mm6.50 mm1.03 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242070995
Side View
Table 56.0%Crown 34°Girdle: MediumPavilion 41.4°Culet: NoneDepth 62.2%

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: Oct 28
Current: €3,739 EUR|Low: €1,685 EUR|High: €3,773 EUR|Avg: €2,407 EUR|-0.9%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 7€1,714 EUR
Retailer 5€1,924 EUR
Retailer 8€2,009 EUR
Retailer 11€2,029 EUR
Retailer 15€2,069 EUR
Retailer 10€2,087 EUR
Retailer 2€2,241 EUR
Retailer 3€2,273 EUR
Retailer 14€2,327 EUR
Retailer 16€2,579 EUR
Retailer 13€2,609 EUR
Retailer 9€2,617 EUR
Retailer 4€2,698 EUR
Retailer 12€3,180 EUR
Retailer 6€3,400 EUR
Helzberg Diamonds€3,739 EUR

28 data points across 16 retailers

16 retailers€1,714 EUR to €3,739 EUR

A
Cheapest Retailer
-
€1,714 EUR
$1,915 USD
A
Retailer 2
-
€1,924 EUR
SGD 2,905 SGD
View
A
Retailer 3
-
€2,009 EUR
$2,245 USD
View
A
Retailer 4
-
€2,029 EUR
$2,267 USD
View
A
Retailer 5
-
€2,069 EUR
$2,311 USD
View
B+
Retailer 6
-
€2,087 EUR
$2,331 USD
View
A
Retailer 7
-
€2,241 EUR
£1,971 GBP
View
B+
Retailer 8
-
€2,273 EUR
SGD 3,431 SGD
View
B+
Retailer 9
-
€2,327 EUR
$2,600 USD
View
B+
Retailer 10
-
€2,579 EUR
$2,881 USD
View
B+
Retailer 11
-
€2,609 EUR
£2,295 GBP
View
B+
Retailer 12
-
€2,617 EUR
$2,924 USD
View
B+
Retailer 13
-
€2,698 EUR
View
B+
Retailer 14
-
€3,180 EUR
$3,553 USD
View
B
Retailer 15
-
€3,400 EUR
$3,798 USD
View
Most Expensive
B
Helzberg Diamonds
XZRLIKIGNGPPL · Oct 30
€3,739 EUR
$4,177 USD
View
15 more retailers have this diamond
Prices start from €1,714 EURSave up to €2,025 EUR

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
1.03ct Round
€1,714 EUR