Round|Natural|GIA

1.30ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2528810151

Certificate GIA 2528810151

Diamond specifications and retailer prices

From €2,383 EUR
As of November 6, 2026
Save €2,831 EUR (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €5,446 EUR at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2528810151. Listed at 18 retailers as of November 4, 2026, with a 119% 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

1.30
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceVery Strong
Crown angle33°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2528810151
Dimensions6.97 × 7.00 × 4.31 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.97 mm7.00 mm1.30 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceVery Strong
CertificateGIA 2528810151
Side View
Table 59.0%Crown 33°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.7%

Caratlytics Score

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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 6
Current: €2,480 EUR|Low: €2,383 EUR|High: €5,345 EUR|Avg: €3,280 EUR|-3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9€2,383 EUR
Retailer 1€2,480 EUR
Retailer 7€2,777 EUR
Retailer 2€2,886 EUR
Retailer 3€2,991 EUR
Retailer 10€3,126 EUR
Retailer 5€3,215 EUR
Retailer 4€3,313 EUR
Retailer 6€3,632 EUR
Retailer 8€5,214 EUR

29 data points across 10 retailers

18 retailers€2,383 EUR to €5,214 EUR

A
Cheapest Retailer
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€2,383 EUR
A
Retailer 2
-
€2,480 EUR
View
A
Retailer 3
-
€2,777 EUR
View
A
Retailer 4
-
€2,840 EUR
View
A
Retailer 5
-
€2,886 EUR
View
Final sale: no returns
A
Retailer 6
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€2,923 EUR
View
A
Retailer 7
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€2,927 EUR
View
A
Retailer 8
-
€2,991 EUR
View
Retailer 9
-
€3,126 EUR
View
Price last confirmed 17 days ago
Retailer 10
-
€3,126 EUR
View
Price last confirmed 21 days ago
A
Retailer 11
-
€3,215 EUR
View
Retailer 12
-
€3,247 EUR
View
Price last confirmed 22 days ago
A
Retailer 13
-
€3,313 EUR
View
Retailer 14
-
€3,383 EUR
View
Price last confirmed 29 days ago
Retailer 15
-
€3,607 EUR
View
Price last confirmed 19 days ago
A
Retailer 16
-
€3,632 EUR
View
B
Retailer 17
-
€5,214 EUR
View
Most Expensive
NZ Jewellers
850537c0-77a6-497c-ab10-3d486638b5d1 · Oct 17
€5,446 EUR
$6,113 USD
View
Price last confirmed 20 days ago
17 more retailers have this diamond
Prices start from €2,383 EURSave up to €2,831 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
1.30ct Round
€2,383 EUR