Round|Natural|GIA

1.03ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2556574821

Certificate GIA 2556574821

Diamond specifications and retailer prices

From €3,430 EUR
$3,832 USD
As of October 30, 2026
Save €3,459 EUR (50%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €7,495 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 2556574821. Listed at 15 retailers as of October 29, 2026, with a 101% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2556574821
Dimensions6.43 × 6.41 × 4.03 mm
L/W Ratio1.00
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.43 mm6.41 mm1.03 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556574821
Side View
Table 57.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 62.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €7,495 EUR|Low: €1,666 EUR|High: €7,495 EUR|Avg: €4,005 EUR
NZ Jewellers
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
October 31, 2026
Retailer 8€1,666 EUR
Retailer 7€1,969 EUR
Retailer 12€3,374 EUR
Retailer 3€3,430 EUR
Retailer 4€3,533 EUR
Retailer 15€3,697 EUR
Retailer 5€3,897 EUR
Retailer 13€3,897 EUR
Retailer 14€3,897 EUR
Retailer 9€4,250 EUR
Retailer 6€4,497 EUR
Retailer 10€4,608 EUR
Retailer 16€4,750 EUR
Retailer 2€5,288 EUR
Retailer 11€6,889 EUR
NZ Jewellers€7,495 EUR

20 data points across 16 retailers

15 retailers€3,430 EUR to €6,889 EUR

Retailer 1
-
€1,969 EUR
$2,200 USD
Price last confirmed 27 days ago
Retailer 2
-
€3,374 EUR
$3,770 USD
View
Price last confirmed 13 days ago
B
Retailer 3
-
€3,430 EUR
$3,832 USD
View
B
Retailer 4
-
€3,533 EUR
$3,947 USD
View
B
Retailer 5
-
€3,697 EUR
$4,130 USD
View
B
Retailer 6
-
€3,897 EUR
$4,354 USD
View
B
Retailer 7
-
€3,897 EUR
$4,354 USD
View
B
Retailer 8
-
€3,897 EUR
$4,354 USD
View
B
Retailer 9
-
€4,250 EUR
£3,739 GBP
View
B
Retailer 10
-
€4,275 EUR
$4,776 USD
View
B
Retailer 11
-
€4,497 EUR
$5,024 USD
View
B
Retailer 12
-
€4,608 EUR
View
B
Retailer 13
-
€5,288 EUR
ZAR 95,440 ZAR
View
B
Retailer 14
-
€6,889 EUR
£6,060 GBP
View
Most Expensive
NZ Jewellers
2941b8e2-fb7e-40b5-9a24-504f2ce5863b · Oct 30
€7,495 EUR
$8,373 USD
View
Price under review
14 more retailers have this diamond
Prices start from €3,430 EURSave up to €3,459 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.

B
1.03ct Round
€3,430 EUR