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Round|Natural|GIA

2.51ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6422459741

Certificate GIA 6422459741

Diamond specifications and retailer prices

From €25,071 EUR
$28,010 USD
As of November 1, 2026
Save €17,936 EUR (42%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €43,007 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6422459741. Listed at 13 retailers as of November 1, 2026, with prices from €25,071 to €43,007, a €17,936 spread on the same certified stone. MOH London lists it at €43,007. 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

2.51
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6422459741
Dimensions8.71 × 8.74 × 5.38 mm
L/W Ratio1.00
Top View
8.71 mm8.74 mm2.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6422459741
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €43,007 EUR|Low: €22,948 EUR|High: €43,526 EUR|Avg: €31,205 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 7€24,639 EUR
Retailer 5€25,243 EUR
Retailer 6€27,505 EUR
Retailer 2€27,805 EUR
Retailer 3€33,265 EUR
Retailer 4€38,078 EUR
MOH London€43,007 EUR

39 data points across 7 retailers

13 retailers€25,071 EUR to €43,007 EUR

B+
Cheapest Retailer
-
€25,071 EUR
$28,010 USD
B+
Retailer 2
-
€25,243 EUR
$28,202 USD
View
Final sale: no returns
Retailer 3
-
€27,505 EUR
A$47,275 AUD
View
Price last confirmed 29 days ago
B
Retailer 4
-
€27,537 EUR
$30,765 USD
View
B
Retailer 5
-
€27,805 EUR
£24,459 GBP
View
B
Retailer 6
-
€27,966 EUR
$31,244 USD
View
B
Retailer 7
-
€28,685 EUR
$32,047 USD
View
B
Retailer 8
-
€28,915 EUR
$32,304 USD
View
B
Retailer 9
-
€29,832 EUR
$33,329 USD
View
B
Retailer 10
-
€30,980 EUR
$34,611 USD
View
B
Retailer 11
-
€33,265 EUR
View
B
Retailer 12
-
€38,078 EUR
ZAR 687,262 ZAR
View
Most Expensive
B
MOH London
F205D9262 · Nov 1
€43,007 EUR
£37,833 GBP
View
12 more retailers have this diamond
Prices start from €25,071 EURSave up to €17,936 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.

B+
2.51ct Round
€25,071 EUR