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Round|Natural|GIA

2.51ct F I1 Round Natural Diamond

EX • F/I1 • GIA 1535851492

Certificate GIA 1535851492

Diamond specifications and retailer prices

From €13,324 EUR
$14,886 USD
As of November 1, 2026
Save €2,537 EUR (16%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €18,602 EUR at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded F colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 1535851492. Listed at 7 retailers as of November 1, 2026, with a relatively tight 19% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

2.51
Carat
F
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1535851492
Dimensions8.60 × 8.64 × 5.45 mm
L/W Ratio1.00
Top View
8.60 mm8.64 mm2.51 ctF / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1535851492
Side View
Table 57.0%CrownGirdle: UNDPavilionCulet: NoneDepth 63.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: €18,602 EUR|Low: €13,324 EUR|High: €20,014 EUR|Avg: €16,571 EUR|-7.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 3€13,324 EUR
Retailer 4€14,493 EUR
Retailer 5€15,702 EUR
Retailer 8€15,814 EUR
Retailer 2€15,862 EUR
Retailer 6€17,544 EUR
NZ Jewellers€18,602 EUR
Retailer 7€18,956 EUR

21 data points across 8 retailers

7 retailers€13,324 EUR to €15,862 EUR

A
Cheapest Retailer
-
€13,324 EUR
$14,886 USD
A
Retailer 2
-
€14,493 EUR
$16,192 USD
View
Retailer 3
-
€15,702 EUR
$17,542 USD
View
Price last confirmed 38 days ago
A
Retailer 4
-
€15,702 EUR
$17,542 USD
View
A
Retailer 5
-
€15,862 EUR
View
Retailer 6
-
€17,544 EUR
$19,600 USD
View
Price last confirmed 41 days ago
Most Expensive
NZ Jewellers
59062128-54da-4a61-9230-b8c0f8d87160 · Sep 26
€18,602 EUR
$20,782 USD
View
Price last confirmed 36 days ago
6 more retailers have this diamond
Prices start from €13,324 EURSave up to €2,537 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
2.51ct Round
€13,324 EUR