Round|Natural|GIA

1.02ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2526780205

Certificate GIA 2526780205

Diamond specifications and retailer prices

From €1,708 EUR
As of November 4, 2026
Save €2,301 EUR (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €4,975 EUR at NZ Jewellers · As of September 19, 2026
View at NZ Jewellers

About this 1.02ct natural round diamond

This 1.02ct 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 2526780205. Listed at 20 retailers as of November 4, 2026, with a 135% 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

1.02
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2526780205
Dimensions6.46 × 6.42 × 4.02 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.46 mm6.42 mm1.02 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2526780205
Side View
Table 58.0%Crown 34.5°Girdle: MD-STKPavilion 41.6°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €4,797 EUR|Low: €1,696 EUR|High: €4,797 EUR|Avg: €2,614 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
November 6, 2026
Retailer 13€1,708 EUR
Retailer 7€2,073 EUR
Retailer 12€2,073 EUR
Retailer 14€2,114 EUR
Retailer 15€2,117 EUR
Retailer 6€2,142 EUR
Retailer 5€2,295 EUR
Retailer 8€2,373 EUR
Retailer 2€2,413 EUR
Retailer 3€2,420 EUR
Retailer 16€2,571 EUR
Retailer 4€2,648 EUR
Retailer 10€2,800 EUR
Retailer 9€2,843 EUR
Retailer 11€4,009 EUR
NZ Jewellers€4,797 EUR

40 data points across 16 retailers

20 retailers€1,708 EUR to €4,009 EUR

A
Cheapest Retailer
-
€1,708 EUR
A
Retailer 2
-
€2,073 EUR
View
A
Retailer 3
-
€2,073 EUR
View
A
Retailer 4
-
€2,114 EUR
View
B+
Retailer 5
-
€2,117 EUR
View
Final sale: no returns
B+
Retailer 6
-
€2,142 EUR
View
Retailer 7
-
€2,295 EUR
View
Price last confirmed 22 days ago
Retailer 8
-
€2,295 EUR
View
Price last confirmed 16 days ago
Retailer 9
-
€2,373 EUR
View
Price last confirmed 11 days ago
Retailer 10
-
€2,400 EUR
View
Price last confirmed 23 days ago
B+
Retailer 11
-
€2,413 EUR
View
B+
Retailer 12
-
€2,420 EUR
View
Retailer 13
-
€2,571 EUR
View
Price last confirmed 31 days ago
Retailer 14
-
€2,648 EUR
View
Price last confirmed 17 days ago
Retailer 15
-
€2,746 EUR
View
Price last confirmed 46 days ago
B+
Retailer 16
-
€2,800 EUR
View
B+
Retailer 17
-
€2,843 EUR
View
B
Retailer 18
-
€4,009 EUR
View
Retailer 19
-
€4,797 EUR
View
Price last confirmed 18 days ago
Most Expensive
NZ Jewellers
81214d62-4064-46f1-8013-a28bef6db1be · Sep 19
€4,975 EUR
$5,555 USD
View
Price last confirmed 48 days ago
19 more retailers have this diamond
Prices start from €1,708 EURSave up to €2,301 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
1.02ct Round
€1,708 EUR