Round|Natural|GIA

1.03ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1563164446

Certificate GIA 1563164446

Diamond specifications and retailer prices

From €2,088 EUR
$2,333 USD
As of October 30, 2026
Save €2,218 EUR (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €4,370 EUR at Torres Jewel Co · As of September 30, 2026
View at Torres Jewel Co

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 1563164446. Listed at 14 retailers as of October 30, 2026, with a 106% 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
FluorescenceNone
Crown angle34°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1563164446
Dimensions6.48 × 6.51 × 3.98 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
6.48 mm6.51 mm1.03 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1563164446
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.3%

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 30
Current: €2,148 EUR|Low: €1,721 EUR|High: €6,958 EUR|Avg: €3,317 EUR|-39.3%
Retailer 1
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
Torres Jewel Co
November 1, 2026
Retailer 5€1,721 EUR
Retailer 8€1,753 EUR
Retailer 3€2,088 EUR
Retailer 1€2,148 EUR
Retailer 15€2,168 EUR
Retailer 16€2,305 EUR
Retailer 7€2,352 EUR
Retailer 9€2,477 EUR
Retailer 14€2,532 EUR
Retailer 6€2,598 EUR
Retailer 11€2,713 EUR
Retailer 2€2,928 EUR
Retailer 13€2,981 EUR
Retailer 12€3,165 EUR
Retailer 10€4,306 EUR
Torres Jewel Co€4,370 EUR
Retailer 4€4,798 EUR

14 data points across 17 retailers

14 retailers€2,088 EUR to €4,306 EUR

Retailer 1
-
€1,753 EUR
HK$15,300 HKD
Price last confirmed 60 days ago
A
Retailer 2
-
€2,088 EUR
$2,333 USD
View
A
Retailer 3
-
€2,148 EUR
$2,400 USD
View
A
Retailer 4
-
€2,168 EUR
$2,422 USD
View
B+
Retailer 5
-
€2,305 EUR
$2,575 USD
View
B+
Retailer 6
-
€2,477 EUR
£2,179 GBP
View
B+
Retailer 7
-
€2,532 EUR
$2,829 USD
View
Retailer 8
-
€2,597 EUR
$2,901 USD
View
Price last confirmed 63 days ago
B+
Retailer 9
-
€2,713 EUR
£2,387 GBP
View
B
Retailer 10
-
€2,928 EUR
$3,272 USD
View
B
Retailer 11
-
€2,981 EUR
$3,330 USD
View
B+
Retailer 12
-
€3,165 EUR
ZAR 57,115 ZAR
View
B
Retailer 13
-
€4,306 EUR
£3,788 GBP
View
Most Expensive
Torres Jewel Co
25689157 · Sep 30
€4,370 EUR
A$7,510 AUD
View
Price last confirmed 32 days ago
13 more retailers have this diamond
Prices start from €2,088 EURSave up to €2,218 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
€2,088 EUR