Round|Natural|GIA

2.50ct I I1 Round Natural Diamond

EX • I/I1 • GIA 3545475128

Certificate GIA 3545475128

Diamond specifications and retailer prices

From €11,980 EUR
$13,384 USD
As of October 31, 2026
Save €3,876 EUR (24%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €18,595 EUR at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 2.5ct natural round diamond

This 2.5ct natural round sits in the two to three carat band, graded I colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 3545475128. Listed at 8 retailers as of October 31, 2026, with a 32% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

2.50
Carat
I
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3545475128
Dimensions8.62 × 8.59 × 5.38 mm
L/W Ratio1.00
Top View
8.62 mm8.59 mm2.50 ctI / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545475128
Side View
Table 58.0%CrownGirdlePavilionCuletDepth 62.6%

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 31
Current: €15,856 EUR|Low: €11,843 EUR|High: €22,970 EUR|Avg: €15,300 EUR|+3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 2€11,980 EUR
Retailer 3€12,067 EUR
Retailer 6€13,126 EUR
Retailer 4€14,219 EUR
Retailer 5€14,766 EUR
Retailer 1€15,856 EUR
Retailer 7€17,611 EUR
Retailer 8€22,970 EUR

19 data points across 8 retailers

8 retailers€11,980 EUR to €15,856 EUR

A
Cheapest Retailer
-
€11,980 EUR
$13,384 USD
A
Retailer 2
-
€12,067 EUR
$13,481 USD
View
Retailer 3
-
€13,126 EUR
$14,664 USD
View
Price last confirmed 24 days ago
Retailer 4
-
€14,001 EUR
$15,642 USD
View
Price last confirmed 33 days ago
Retailer 5
-
€14,219 EUR
$15,886 USD
View
Price last confirmed 24 days ago
Retailer 6
-
€14,766 EUR
$16,497 USD
View
Price last confirmed 33 days ago
B+
Retailer 7
-
€15,856 EUR
View
Most Expensive
NZ Jewellers
f7f0621d-53e4-4466-8a10-77dbe1b138b8 · Sep 28
€18,595 EUR
$20,774 USD
View
Price last confirmed 34 days ago
7 more retailers have this diamond
Prices start from €11,980 EURSave up to €3,876 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
2.50ct Round
€11,980 EUR